WO2024162534A1

WO2024162534A1 - Rolling bearing

Info

Publication number: WO2024162534A1
Application number: PCT/KR2023/008631
Authority: WO
Inventors: 장순길
Original assignee: 장순길
Priority date: 2023-02-03
Filing date: 2023-06-21
Publication date: 2024-08-08

Abstract

The present invention pertains to a rolling bearing that does not experience sliding contact and friction. The present invention is characterized in that rolling-element gears that mesh with the outer race and inner race of a retainer are installed on rolling elements, or retainer-roller grooves or retainer-roller gears that mesh with the outer race and inner race of a retainer are installed on retainer rollers, so that the rolling elements and the retainer rollers are in rolling contact, or the distance between the rolling elements is maintained consistently. The rolling bearing according to the present invention eliminates or minimizes sliding contact and friction and thus can be widely used in applications in need of bearings that are free of friction, wear, or heat generation.

Description

Cloud bearing

In conventional rolling bearings, various types of retainers were used to prevent the rolling elements from contacting each other. The conventional retainers made sliding contact with the rolling elements, and friction occurred there. The technical field of the present invention is a technology related to retaining that can eliminate or reduce such friction in rolling bearings.

A rolling bearing is a type of bearing, and is composed of various types of rolling elements such as balls, cylindrical rollers, outer and inner rings that include raceway grooves or raceway surfaces, and retainers that prevent the rolling elements from touching each other. Rolling bearings are divided into ball bearings and roller bearings based on the rolling elements, and radial bearings and thrust bearings based on the load direction.

Conventional retainers were in contact with the moving parts, and at that point, sliding contact occurred instead of rolling contact. Such sliding contact often caused various problems such as friction, wear, and heat generation. However, such sliding contact could not be eliminated.

The problem to be solved by the present invention is to improve the retainer used in a cloud bearing so that sliding contact does not occur or is minimized, thereby improving the performance of the cloud bearing.

A washer-shaped raceway may be used in a thrust bearing. Among the raceways of a thrust bearing, the raceway installed on the shaft is called the 'inner raceway', and the raceway installed on the housing is called the 'outer raceway', similar to the inner and outer raceways of a radial bearing.

(1) In a rolling bearing, when a rolling element that makes rolling contact with the outer ring and inner ring is provided with a rolling element gear, and the rolling element gear is installed in mesh with the retainer outer ring and the retainer inner ring, the rolling element gears rotate at the same speed and the distance between the rolling elements is maintained constant.

(2) In a rolling bearing, a rolling element having rolling contact with the outer ring and inner ring is provided with a rolling element gear, and a retainer roller having a retainer roller gear that meshes with the rolling element gear is installed between the rolling elements so that the rolling element and the retainer roller are in rolling contact, and the retainer outer ring and the retainer inner ring are meshed with the rolling element gear, so that the rolling element gears rotate at the same speed as each other and the distance between the rolling elements is maintained constant.

(3) In a cloud bearing, when gears are formed around the outer ring having a retainer outer ring and an inner ring having a retainer inner ring and are installed in mesh with each other, the gears rotate at the same speed and the distance between the gears is maintained constant.

(4) In a rolling bearing, a retainer roller having either a retainer roller groove or a retainer roller gear is installed between the outer ring and the inner ring and the rolling elements that make rolling contact, so that the rolling elements and the retainer roller make rolling contact, and when the retainer outer ring and the retainer inner ring are meshed with the retainer roller groove or the retainer roller gear, the retainer rollers rotate at the same speed as each other and the distance between the rolling elements is maintained constant.

(5) In a rolling bearing, if a rolling element groove is provided on the outer ring and inner ring and the rolling element in rolling contact, and a retainer outer ring and a retainer inner ring are meshed with the gears in the grooves of the rolling elements and installed, the rolling elements rotate at the same speed and the distance between the rolling elements is maintained constant.

The cloud bearing according to the present invention has a simple structure, is not particularly difficult to manufacture, does not cause sliding contact in the bearing, and can minimize friction, so it is less affected by the rotation speed of the bearing and lubricating oil, and can be conveniently used for a long time without consideration of friction, wear, heat generation, lubrication, and maintenance.

Fig. 1 shows one of the basic principles of a rolling bearing according to the present invention, in which a retainer roller (1) is located between rolling elements (3) of the rolling bearing. The rolling elements (3) and the retainer roller (1) are in contact with each other and rotate in opposite directions while making rolling contact. The outer ring (5) and the inner ring (8) make rolling contact with the rolling elements (3).

FIG. 2 shows a case where the driving element (3) of FIG. 1 is one of the rollers, such as a cylindrical roller, a needle roller, or a tapered roller, the driving element (13) is in rolling contact with the outer ring (15) and the inner ring (18), a driving element gear (14) and a retainer roller gear (12) are installed on the driving element (13) and the retainer roller (11), respectively, the installed gears (14, 12) mesh with each other, an outer ring retainer groove (16) and an inner ring retainer groove (19) are installed on the outer ring (15) and the inner ring (18), a retainer outer ring (17) and a retainer inner ring (20) are installed on the outer ring retainer groove (16) and the inner ring retainer groove (19), respectively, and the retainer outer ring (17) and the retainer inner ring (20) mesh with the driving element gear (14).

FIG. 3 shows a case where the driving element (13) of FIG. 2 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, and shows more specific examples of shapes, such as a roller-shaped driving element (23) and a retainer roller (21), a spur gear-shaped driving element gear (24), a retainer roller gear (22), and a retainer inner ring (30), and an internal gear-shaped retainer outer ring (27).

FIG. 4 shows two parts of a cross-section of a state in which a driving element (23), a retainer roller (21), a driving element gear (24), a retainer roller gear (22), a retainer outer ring (27), and a retainer inner ring (30) shown in FIG. 3 are installed between an outer ring (25) and an inner ring (28). The retainer outer ring (27) and the retainer inner ring (30) are installed in an outer ring retainer groove (26) and an inner ring retainer groove (29), respectively. The cross-section on the left is a cross-section centered on the driving element (23), and the cross-section on the right is a cross-section centered on the retainer roller (21).

FIG. 5 shows, similarly to FIG. 3, a case where the driving element (13) of FIG. 2 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, and more specific shapes, such as a roller-shaped driving element (43) and a retainer roller (41), a spur gear-shaped driving element gear (44), a retainer roller gear (42), and a retainer inner ring (50), and an internal gear-shaped retainer outer ring (47).

FIG. 6 shows two parts of a cross-section of a state in which the driving element (43), retainer roller (41), driving element gear (44), retainer roller gear (42), retainer outer ring (47), and retainer inner ring (50) shown in FIG. 5 are installed between the outer ring (45) and the inner ring (48). The retainer outer ring (47) and the retainer inner ring (50) are installed in the outer ring retainer groove (46) and the inner ring retainer groove (49), respectively. The cross-section on the left is a cross-section centered on the driving element (43), and the cross-section on the right is a cross-section centered on the retainer roller (41).

FIG. 7 shows a case where the driving element (13) of FIG. 2 is one of the tapered rollers, and shows more specific examples of shapes such as a driving element (63) in the shape of a tapered roller and a retainer roller (61), a bevel gear-shaped driving element gear (64), a retainer roller gear (62), and a retainer inner ring (70), and a retainer outer ring (67) in the shape of an internal gear and a bevel gear.

FIG. 8 shows two parts of a cross-section of a state in which the driving element (63), the retainer roller (61), the driving element gear (64), the retainer roller gear (62), the retainer outer ring (67), and the retainer inner ring (70) shown in FIG. 7 are installed between the tapered outer ring (65) and the inner ring (68). The retainer outer ring (67) and the retainer inner ring (70) are installed in the outer ring retainer groove (66) and the inner ring retainer groove (69), respectively. The left cross-section is a cross-section centered on the driving element (63), and the right cross-section is a cross-section centered on the retainer roller (61).

FIG. 9 shows a case where the driving element (3) of FIG. 1 is one of balls or rollers, such as a ball, a cylindrical roller, a needle roller, or a tapered roller. A retainer roller (81) is located between the driving elements (83). The driving elements (83) and the retainer roller (81) are in contact with each other and are shown rotating in opposite directions while making rolling contact. The outer ring (85) and the inner ring (86) are in rolling contact with the driving element (83).

Fig. 10 shows a case where the driving element (83) of Fig. 9 is a ball, and shows more specific examples of shapes such as a ball-shaped driving element (93), a roller-shaped retainer roller (91), and a retainer roller groove (99). The retainer roller groove (99) in the retainer roller (91) may be replaced with a retainer roller gear (92).

Fig. 11 shows a case where the driving body (83) of Fig. 9 is one of the rollers, and shows a more specific example of the shape of the roller-shaped driving body (103), the retainer roller (101), the driving body groove (104), and the retainer roller groove (109). On the right is a retainer roller gear (102) that can replace the retainer roller groove (109) in the retainer roller (101).

Figure 12 shows the shape of the retainer roller (91) shown in Figure 10 before being assembled with the retainer outer ring (117) and the retainer inner ring (118).

Figure 13 shows a shape in which the retainer outer ring (117) and the retainer inner ring (118) shown in Figure 12 are assembled with the retainer roller (91) using the retainer roller groove (99) in the retainer roller (91).

The figure below shows a retainer roller (121) having a sprocket gear-shaped retainer roller gear (92) that can be used as a replacement for a retainer roller (91) having a retainer roller groove (99), and a retainer outer ring (127) and a retainer inner ring (128) in the shape of a perforated ring that can be used together.

The left picture of Fig. 14 shows a part of a cross-section of a driving element (93), a retainer roller (91), a retainer outer ring (117), and a retainer inner ring (118) installed together with an outer ring (135) and an inner ring (136). The driving element (93) is not present in the same cross-section as the retainer roller (91), and is therefore indicated by a dotted line.

The right picture of Fig. 14 shows examples (139, 140) of gear tooth shapes that can be used for retainer outer rings (117, 147, 157) and retainer inner rings (118, 148, 158).

The left picture of Fig. 15 shows a part of a cross-section of a shape in which a driving element (103), a retainer roller (101), a retainer outer ring (147) of the same shape as the retainer outer ring (117), and a retainer inner ring (148) of the same shape as the retainer inner ring (118) are installed between the outer ring (145) and the inner ring (146). The driving element (103) is not present in the same cross-section as the retainer roller (101) and is therefore indicated by a dotted line.

The right picture of Fig. 15 is a drawing that was made by changing the left picture to fit the case where the driving element (103) and the retainer roller (101) are in the shape of tapered rollers, and shows a part of a cross-section of a driving element (153) and a retainer roller (151) in the shape of a tapered roller, a retainer outer ring (157) that has the same shape as the retainer outer ring (117) but in the shape of a tapered ring, and a retainer inner ring (158) that has the same shape as the retainer inner ring (118) but in the shape of a tapered ring, installed between the tapered outer ring (155) and the inner ring (156). The driving element (153) is not present in the same cross-section as the retainer roller (151) and is therefore indicated by a dotted line.

It is preferable that the retainer roller grooves (99, 109, 159) do not slip with respect to the retainer outer ring (117, 147, 157) and the retainer inner ring (118, 148, 158). Intermeshing gears may be used in the retainer roller grooves (99, 109, 159), the retainer outer ring (117, 147, 157), and the retainer inner ring (118, 148, 158), and gears having a sawtooth shape like the example (139, 140) shown on the right side of Fig. 14 may be used.

Fig. 16 is a diagram showing the English letters used when calculating values related to restrictions on the number of teeth of gears and the size of the radius of the pitch circle in the detailed description of Fig. 3 below. A retainer roller (161) between the rolling elements (163) makes rolling contact with the rolling elements (163) on both sides. The rolling elements (163) make rolling contact with the raceways of the outer ring and the inner ring.

Fig. 17 shows the same shape as Fig. 2 except that the retainer roller (11) and the retainer roller gear (12) are excluded, and only the rolling element (13), the rolling element gear (14), the outer ring (15), the inner ring (18), the outer ring retainer groove (16), the inner ring retainer groove (19), the retainer outer ring (17), and the retainer inner ring (20) remain.

FIG. 18 shows the same shape as in FIG. 17, where the driving body (13) and the driving body gear (14) are integrated to form a gear driving body (173), and the outer ring retainer groove (16) and the inner ring retainer groove (19) are excluded, and there is an outer ring (175), an inner ring (178), a retainer outer ring (177), and a retainer inner ring (180).

FIG. 19 shows a case where the driving element (13) of FIG. 17 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, and is similar to FIG. 3 except that the retainer roller (11) and the retainer roller gear (12) are excluded, and more specific examples of shapes such as a roller-shaped driving element (23), a spur-gear-shaped driving element gear (24) and a retainer inner ring (30), and an internal gear-shaped retainer outer ring (27) are shown.

At the bottom right, a sprocket gear-shaped transmission gear (34), a perforated ring-shaped retainer outer ring (37), and a retainer inner ring (40) are shown, which can be used as replacements for the transmission gear (24), the retainer outer ring (27), and the retainer inner ring (30).

Fig. 20 shows two cross-sections of a portion of a shape in which the driving element (23), the driving element gear (24), the retainer outer ring (27), and the retainer inner ring (30) shown in Fig. 19 are installed between the outer ring (25) and the inner ring (28). The retainer outer ring (27) and the retainer inner ring (30) are installed in the outer ring retainer groove (26) and the inner ring retainer groove (29), respectively. It is the same as in Fig. 4 with the retainer roller (11) and the retainer roller gear (12) removed, and the left cross-section is a cross-section centered on the driving element (23), and the right cross-section is a cross-section where the retainer roller (21) is removed and absent.

FIG. 21 is a case in which the driving element (13) of FIG. 17 is one of a roller without a taper, such as a cylindrical roller or a needle roller, similar to FIG. 19, except that the retainer roller (41) and the retainer roller gear (42) in FIG. 5 are excluded, and more specific shapes are shown, such as a roller-shaped driving element (43), a spur-gear-shaped driving element gear (44) and a retainer inner ring (50), and an internal gear-shaped retainer outer ring (47).

Fig. 22 shows two cross-sections of a portion of a shape in which the driving element (43), the driving element gear (44), the retainer outer ring (47), and the retainer inner ring (50) shown in Fig. 21 are installed between the outer ring (45) and the inner ring (48). The retainer outer ring (47) and the retainer inner ring (50) are installed in the outer ring retainer groove (46) and the inner ring retainer groove (49), respectively. It is the same as in Fig. 6 with the retainer roller (41) and the retainer roller gear (42) removed, and the left cross-section is a cross-section centered on the driving element (43), and the right cross-section is a cross-section where the retainer roller (41) is removed and absent.

Fig. 23 shows a case where the driving element (13) of Fig. 17 is one of tapered rollers, and is similar to Fig. 7 except that the retainer roller (61) and the retainer roller gear (62) are excluded, and shows more specific examples of shapes such as a tapered roller-shaped driving element (63), a bevel gear-shaped driving element gear (64) and a retainer inner ring (70), and a retainer outer ring (67) having an internal gear shape and a bevel gear shape.

Fig. 24 shows two cross-sections of a portion of a shape in which the driving element (63), the driving element gear (64), the retainer inner ring (70), and the retainer outer ring (67) shown in Fig. 23 are installed between the tapered outer ring (65) and the inner ring (68). The retainer outer ring (67) and the retainer inner ring (70) are installed in the outer ring retainer groove (66) and the inner ring retainer groove (69), respectively. It is the same as in Fig. 8 with the retainer roller (61) and the retainer roller gear (62) removed, and the left cross-section is a cross-section centered on the driving element (63), and the right cross-section is a cross-section in a part where the retainer roller (61) is removed and absent.

Fig. 25 shows a case where the gear driving body (173) of Fig. 18 is one of the spur gears, and shows more specific examples of shapes such as a spur gear-shaped gear driving body (243), a retainer inner ring (250), and a retainer outer ring (247).

Fig. 26 shows two cross-sections of a portion of a shape in which a gear driving element (243), a retainer outer ring (247), and a retainer inner ring (250) shown in Fig. 25 are installed between the outer ring (245) and the inner ring (248). The retainer outer ring (247) and the retainer inner ring (250) are installed on the outer ring (245) and the inner ring (248), respectively. The cross-section on the left is a cross-section centered on the gear driving element (243), and the cross-section on the right is a cross-section in a region without the gear driving element (243).

Fig. 27 shows a case where the gear driving body (173) of Fig. 18 is one of the tapered rollers, and shows more specific examples of shapes such as a bevel gear-shaped gear driving body (263) and a retainer inner ring (270), and an internal gear-shaped and bevel gear-shaped retainer outer ring (267).

Fig. 28 shows two cross-sections of a portion of a shape in which a gear driving element (263), a retainer inner ring (270), and a retainer outer ring (267) shown in Fig. 27 are installed between an outer ring (265) and an inner ring (268). The retainer outer ring (267) and the retainer inner ring (270) are installed on the outer ring (265) and the inner ring (268), respectively. The cross-section on the left is a cross-section centered on the gear driving element (263), and the cross-section on the right is a cross-section in a portion where the gear driving element (263) is not present.

Fig. 29 shows a shape similar to Fig. 9 except that the retainer roller (81) is excluded, and there is a rolling element (283), an outer ring (285), and an inner ring (286). The outer ring (285) and the inner ring (286) are in rolling contact with the rolling element (283).

Fig. 30 shows a case where the electric body (283) of Fig. 29 is one of the rollers, and shows more specific examples of shapes such as a roller-shaped electric body (293) and an electric body groove (294).

Figure 31 shows the shape of the driving body (293) shown in Figure 30 before being assembled with the retainer outer ring (307) and the retainer inner ring (308).

Figure 32 shows the shape in which the retainer outer ring (307) and the retainer inner ring (308) shown in Figure 30 are assembled with the rolling element (293) using the rolling element groove (294) in the rolling element (293).

Figure 33 shows examples (329, 330) of gear tooth shapes that can be used for retainer outer rings (307, 317) and retainer inner rings (308, 318).

The left picture of Fig. 34 shows a part of a cross-section of a roller-shaped rolling element (293) without a taper, such as a cylindrical roller or a needle roller, a retainer outer ring (307), and a retainer inner ring (308) installed between an outer ring (335) and an inner ring (336).

The right picture of Fig. 34 is a drawing that was made by changing the left picture to fit the case where the driving element (293) has a shape of a tapered roller, and shows a part of a cross-section of a driving element (313) in the shape of a tapered roller, a retainer outer ring (317) that has the same shape as the retainer outer ring (307) but in the shape of a tapered ring, and a retainer inner ring (318) that has the same shape as the retainer inner ring (308) but in the shape of a tapered ring, installed between the tapered outer ring (315) and the inner ring (316).

It is preferable that the driving element grooves (294, 314) do not slip with respect to the retainer outer ring (307, 317) and the retainer inner ring (308, 318). Intermeshing gears may be used in the driving element grooves (294, 314), the retainer outer ring (307, 317), and the retainer inner ring (308, 318), and gears having a sawtooth shape like the example (329, 330) shown in FIG. 33 may be used.

Fig. 35 shows the same shape as in Fig. 17, where the retainer outer ring (17) and the retainer inner ring (20) are not installed in the outer ring retainer groove (16) and the inner ring retainer groove (19), respectively, and are not fixed. The driving element gear (344) meshes with the retainer outer ring (347) and the retainer inner ring (350), and the driving element (83) makes rolling contact with the outer ring (85) and the inner ring (86). The outer ring retainer groove (346) and the inner ring retainer groove (349) are not necessarily required.

Fig. 36 is no different in configuration from Fig. 19. However, the retainer outer ring (357) and the retainer inner ring (360) do not contact the outer ring (355) and the inner ring (358), respectively.

At the lower right, a sprocket gear-shaped transmission gear (364), a perforated ring-shaped retainer outer ring (367), and a retainer inner ring (370) are shown, which can be used as replacements for the transmission gear (354), the retainer outer ring (357), and the retainer inner ring (360).

Fig. 37 shows that, as described above, the retainer outer ring (357) and the retainer inner ring (360) do not contact the outer ring (355) and the inner ring (358), respectively. Even when the driving gear (364) is used instead of the driving gear (354), the retainer outer ring (367) and the retainer inner ring (370), which replace the retainer outer ring (357) and the retainer inner ring (360), do not contact the outer ring (355) and the inner ring (358), respectively.

Fig. 38 is no different in configuration from Fig. 21. However, the retainer outer ring (377) and the retainer inner ring (380) do not contact the outer ring (375) and the inner ring (378), respectively.

Fig. 39 shows that, as described above, the retainer outer ring (377) and the retainer inner ring (380) do not contact the outer ring (375) and the inner ring (378), respectively. Even when the driving gear (364) is used instead of the driving gear (374), the retainer outer ring (367) and the retainer inner ring (370), which replace the retainer outer ring (377) and the retainer inner ring (380), do not contact the outer ring (375) and the inner ring (378), respectively.

Fig. 40 is no different in configuration from Fig. 23. However, the retainer outer ring (397) and the retainer inner ring (400) do not contact the outer ring (395) and the inner ring (398), respectively.

Fig. 41 shows that, as described above, the retainer outer ring (397) and the retainer inner ring (400) do not contact the tapered outer ring (395) and the inner ring (398), respectively. Even when the driving gear (364) is used instead of the driving gear (394), the retainer outer ring (367) and the retainer inner ring (370), which replace the retainer outer ring (397) and the retainer inner ring (400), do not contact the outer ring (395) and the inner ring (398), respectively.

The specific contents of the present invention will be described in detail through embodiments of the present invention shown in the attached drawings. However, the contents of the present invention are not limited to the contents shown in the drawings.

Fig. 1 shows one of the basic principles of the rolling bearing according to the present invention. Here, the rolling element (3) of the rolling bearing is in rolling contact not only with the outer ring (5) and the inner ring (8), but also with the retainer roller (1) that acts as a retainer. This is possible because the retainer roller (1) can rotate in the opposite direction to the rolling element (3). It rotates at the same linear speed or the same circumferential speed at the point of contact. There is no sliding contact.

It is preferable that the diameters of the electric parts (3) are the same. It is also preferable that the diameters of the retainer rollers (1) are the same. This is because if the diameters are different, the rotation speeds may be different even if the revolution speeds are the same.

As shown in Fig. 1, it would be ideal if there were no gap between the driving element (3) and the retainer roller (1) and they could maintain firm contact with each other. However, if there is even a small gap during operation, the retainer roller (1) would move out of its current position. It is difficult to expect that even the most precise device will not have a small gap during operation.

Fig. 2 shows the basic principle of a method for solving the problem shown in Fig. 1. This is a case where the driving element (3) of Fig. 1 is one of rollers, such as a cylindrical roller, a needle roller, or a tapered roller, and a driving element gear (14) is installed on the driving element (13) of Fig. 2, and a retainer roller gear (12) is installed on the retainer roller (11), so that the two gears (14, 12) mesh with each other. In this way, even if a slight gap is created between the driving element (13) and the retainer roller (11) for a moment, the retainer roller (11) does not move out of its current position, and the retainer roller (11) continues to rotate together with the driving element (13). An outer ring retainer groove (16) and an inner ring retainer groove (19) are formed in the outer ring (15) and the inner ring (18), respectively, and a retainer outer ring (17) and a retainer inner ring (20) are installed in the outer ring retainer groove (16) and the inner ring retainer groove (19), respectively. However, the retainer outer ring (17) and the retainer inner ring (20) do not have to be in contact with or fixed to the outer ring retainer groove (16) and the inner ring retainer groove (19), respectively. The rolling element gear (14) meshes with the retainer outer ring (17) and the retainer inner ring (20). It is preferable that the diameter of the pitch circle of the rolling element gear (14) is the same as the diameter of the rolling element (13), and that the diameter of the pitch circle of the retainer roller gear (12) is the same as the diameter of the retainer roller (11). Therefore, the driving element (13) rotates without slipping with respect to the outer ring (15) and the inner ring (18). The retainer roller gear (12) does not mesh with or contact the retainer outer ring (17) and the retainer inner ring (20).

The electric body gear (14), retainer roller (11), retainer roller gear (12), retainer outer ring (17), and retainer inner ring (20) do not play any role in or are not affected by the load applied to the outer ring (15) and the inner ring (18).

Depending on the shape of the driving element (13), the shapes of the retainer roller (11), the driving element gear (14), the retainer roller gear (12), the outer ring (15), the inner ring (18), the outer ring retainer groove (16), the inner ring retainer groove (19), the retainer outer ring (17), and the retainer inner ring (20) may vary.

When the driving element (13) has a cylindrical roller, needle roller, or tapered roller shape, the retainer roller (11) also has a cylindrical roller, needle roller, or tapered roller shape. When the driving element (13) has a cylindrical roller or needle roller shape, the driving element gear (14), the retainer roller gear (12), the retainer inner ring (20), and the retainer outer ring (17) are spur gear-shaped gears that are spur gears or gears that can replace spur gears, and the retainer outer ring (17) becomes an internal gear. When the driving element (13) has a tapered roller shape, the driving element gear (14), the retainer roller gear (12), the retainer inner ring (20), and the retainer outer ring (17) are bevel gear-shaped gears that are bevel gears or gears that can replace bevel gears, and the retainer outer ring (17) becomes an internal gear.

It is recommended that the drive gears do not spin on the drive gears, and that the retainer roller gears do not spin on the retainer rollers. If the drive gears spin on the drive gears, or the retainer roller gears spin on the retainer rollers, friction due to sliding contact can cause heat generation and wear.

The drive gears may be made integrally with the drive, and the retainer roller gears may be made integrally with the retainer roller.

When the retainer outer ring is fixed to the outer ring without rotating, and the retainer inner ring is fixed to the inner ring without rotating, the retainer outer ring and outer ring, and the retainer inner ring and inner ring may each be made as one piece.

The outer rings of the retainers can be spur gears, gears that can replace spur gears, bevel gears, or gears that can replace bevel gears, but they are internal gears regardless of the type or tooth shape of the gears. Hereinafter, the description of the internal gears of the outer rings of the retainers will be omitted.

Gears that can replace spur gears include helical gears, double helical gears, and sprocket gears, and gears that can replace bevel gears include helical bevel gears, spiral bevel gears, and sprocket gears. There are no restrictions.

Sprocket gears can be used as both rolling element gears and retainer roller gears, but sprocket gears are not used as both rolling element gears and retainer roller gears in a single rolling bearing. Also, sprocket gears are not used as retainer inner rings and retainer outer rings.

Two gears are installed on each driving element, and if the driving element gears are helical gears, it is preferable that the two helical gears have opposite twisting directions.

Two retainer roller gears are installed on each retainer roller, and if the retainer roller gears are helical gears, it is preferable that the two helical gears have twist directions opposite to each other.

To prevent the rolling element, retainer rollers, outer ring, and inner ring from sliding axially between each other, a concave and long groove may be provided on one circumference, and a convex and long projection may be provided on the other circumference.

FIG. 3 shows a case where the driving element (13) of FIG. 2 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, and more specific examples of shapes are shown, such as a roller-shaped driving element (23) and a retainer roller (21), a spur gear-shaped driving element gear (24), a retainer roller gear (22), and a retainer outer ring (27), and an internal gear-shaped retainer inner ring (30).

The electric body (23) and the retainer roller (21) are not only in rolling contact with each other, but are also meshed with each other through the electric body gear (24) and the retainer roller gear (22).

There are no restrictions on the number, position, width, and tooth shape of the electric gear (24) installed on the electric body (23) and the retainer roller gear (22) installed on the retainer roller (21).

In Fig. 3, an example is shown in which two power gears (24) are installed at each end of the power gear (23) and two retainer roller gears (22) are installed at each end of the retainer roller (21). A different number of gears may be installed, and examples in which one power gear (44) and one retainer roller gear (42) are installed at each end of the power gear (43) and the retainer roller (41) can be seen through Figs. 5 and 6.

There are several restrictions on the number of teeth and the radius of the pitch circle of the power gear (24) and the retainer roller gear (22). This is because the gap between the power gears (23) must be arranged at a constant level. For example, (see Fig. 16), if the radius of the pitch circle of the power gear (24) is r, the number of teeth is n, the radius of the pitch circle of the gear of the retainer inner ring (30) is d, the number of teeth is i, the radius of the pitch circle of the gear of the retainer outer ring (27) is e, the number of teeth is j, and the number of the power gears (24) is t,

The circumferential length of the pitch circle of the electric gear (24) is 2rπ, and the circumferential pitch is 2rπ/n.

The circumference of the pitch circle of the gear of the retainer inner ring (30) is 2dπ, 2dπ = 2riπ/n,

The circumference of the pitch circle of the gear of the retainer outer ring (27) is 2eπ, 2eπ = 2rjπ/n.

However, between the two electric gears (24)

The circumference of the pitch circle of the gear of the retainer inner ring (30) is 2dπ/t,

The circumference of the pitch circle of the gear of the retainer outer ring (27) is 2eπ/t

and 2dπ/t + 2eπ/t = 2rkπ/n, r, d, e are positive real numbers, and i, j, k are positive integers. The number of teeth of the retainer roller gear (22) between the two electric power gears (24) is determined from the radius of the pitch circle of the retainer roller gear (22) and the circumferential pitch of the electric power gear (24). Since the center of the electric power gear (24) and the center of the retainer roller gear (22) are at the same distance from the center of the retainer inner ring (30), when the angle therebetween is a, a = 360/t/2, and the distance g between the center of the electric power gear (24) and the center of the retainer roller gear (22) becomes the base of an isosceles triangle, so g = 2(d+r)sin(a/2). Accordingly, the radius s of the pitch circle of the retainer roller gear (22) is s = g - r, the circumference of the pitch circle of the retainer roller gear (22) is 2sπ, and the number m of gear teeth is m = 2sπ/(2rπ/n). a, g, and s are positive real numbers, and m is a positive integer. For example, d = 5, r = 1.25, e = 7.5, n = 16, t = 10, i = 66, j = 98, k = 16, a = 18, g = 1.955, s = 0.703, and m = 9 can be obtained. The unit is cm. Various other values may be selected as needed.

FIG. 4 shows two parts of a cross-section of the driving element (23), retainer roller (21), driving element gear (24), retainer roller gear (22), retainer outer ring (27), and retainer inner ring (30) shown in FIG. 3, installed between the outer ring (25) and the inner ring (28).

The retainer inner ring (30) and the retainer outer ring (27) may be fixed to the inner ring retainer groove (29) and the outer ring retainer groove (26), respectively, but there is no limitation. They may also be installed without contacting each other.

In the cross-sectional view centered on the left-hand drive element (23) of Fig. 4, the drive element gear (24) is meshed with the retainer outer ring (27) and the retainer inner ring (30), and the drive element (23) is in contact with the inner ring (28) and the outer ring (25), and in the cross-sectional view centered on the right-hand drive element (21), the retainer roller gear (22) is not meshed with or in contact with the retainer outer ring (27) and the retainer inner ring (30), and the retainer roller (21) is not in contact with the outer ring (25) and the inner ring (28).

In Fig. 4, an example is shown in which two power gears (24) are installed at each end of the power gear (23) and two retainer roller gears (22) are installed at each end of the retainer roller (21). A different number of gears may be installed, and examples in which one power gear (44) and one retainer roller gear (42) are installed at each end of the power gear (43) and the retainer roller (41) can be seen through Figs. 5 and 6.

FIG. 5 is a case in which the driving element (13) of FIG. 2 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, similar to FIG. 3, and shows more specific shapes, such as a roller-shaped driving element (43), a retainer roller (41), a spur gear-shaped driving element gear (44), a retainer roller gear (42), a retainer outer ring (47), and a retainer inner ring (50).

The electric body (43) and the retainer roller (41) are not only in rolling contact with each other, but are also meshed with each other through the electric body gear (44) and the retainer roller gear (42).

There are no restrictions on the position, width, and tooth shape of the electric gear (44) installed on the electric body (43) and the retainer roller gear (42) installed on the retainer roller (41).

In Fig. 3, the case where there are two power gears (24) and two retainer roller gears (22) for each of the power gear (23) and the retainer roller (21) is shown, whereas in Fig. 5, the case where there is one power gear (44) and one retainer roller gear (42) is shown directly. Here, other secondary changes due to changes in the number and positions of the power gear (44) and the retainer roller gear (42) can be clearly seen.

There are several restrictions on the number of teeth and the pitch radius of the electric drive gear (44) and the retainer roller gear (42). This is because the gap between the electric drive gears (43) must be arranged at a constant level.

FIG. 6 shows two parts of a cross-section of the driving element (43), retainer roller (41), driving element gear (44), retainer roller gear (42), retainer outer ring (47), and retainer inner ring (50) shown in FIG. 5, installed between the outer ring (45) and the inner ring (48).

The retainer inner ring (50) and the retainer outer ring (47) may be fixed to the inner ring retainer groove (49) and the outer ring retainer groove (46), respectively, but there is no limitation. They may also be installed without contacting each other.

In the cross-sectional view centered on the left-hand drive element (43) of Fig. 6, the drive element gear (44) is meshed with the retainer outer ring (47) and the retainer inner ring (50), and the drive element (43) is in contact with the inner ring (48) and the outer ring (45), and in the cross-sectional view centered on the right-hand drive element (41), the retainer roller gear (42) is not meshed with or in contact with the retainer outer ring (47) and the retainer inner ring (50), and the retainer roller (41) is not in contact with the outer ring (45) and the inner ring (48).

In Fig. 6, other minor changes due to changes in the number and positions of the electric body gear (44) and the retainer roller gear (42) from Fig. 4 can also be clearly seen.

FIG. 7 shows a case where the driving element (13) of FIG. 2 is one of the tapered rollers, and shows more specific examples of shapes such as a tapered roller-shaped driving element (63), a retainer roller (61), a bevel gear-shaped driving element gear (64), a retainer roller gear (62), a retainer outer ring (67), and a retainer inner ring (70).

The electric body (63) and the retainer roller (61) are not only in rolling contact with each other, but are also meshed with each other through the electric body gear (64) and the retainer roller gear (62).

There are no restrictions on the number, position, width, and tooth shape of the electric gear (64) installed on the electric body (63) and the retainer roller gear (62) installed on the retainer roller (61).

In Fig. 7, an example is shown in which two power gears (64) are installed at both ends of the power gear (63), and two retainer roller gears (62) are installed at both ends of the retainer roller (61). A different number of gears may be installed, and it is not difficult to change the use of two power gears (64) and two retainer roller gears (62) for each of the power gear (63) and the retainer roller (61) in Fig. 7 to the use of one power gear (64) and one retainer roller gear (62), so the drawing and detailed description are omitted. It can be referenced that the method of changing the two driving gears (24) and two retainer roller gears (22) used for each driving gear (23) and retainer roller (21) in Fig. 3 to one driving gear (44) and one retainer roller gear (42) used for each driving gear (43) and retainer roller (41) in Fig. 5 is changed.

There are several restrictions on the number of teeth and the pitch radius of the electric drive gear (64) and the retainer roller gear (62). This is because the gap between the electric drive gears (63) must be arranged at a constant level.

FIG. 8 shows two parts of a cross-section of the driving element (63), retainer roller (61), driving element gear (64), retainer roller gear (62), retainer outer ring (67), and retainer inner ring (70) shown in FIG. 7, installed between the tapered outer ring (65) and inner ring (68).

The retainer inner ring (70) and the retainer outer ring (67) may be fixed to the inner ring retainer groove (69) and the outer ring retainer groove (66), respectively, but there is no limitation. They may also be installed without contacting each other.

In the cross-sectional view centered on the left-hand drive element (63) of Fig. 8, the drive element gear (64) is meshed with the retainer outer ring (67) and the retainer inner ring (70), and the drive element (63) is in contact with the inner ring (68) and the outer ring (65), and in the cross-sectional view centered on the right-hand drive element (61), the retainer roller gear (62) is not meshed with or in contact with the retainer outer ring (67) and the retainer inner ring (70), and the retainer roller (61) is not in contact with the inner ring (68) and the outer ring (65).

FIG. 8 shows an example in which two power gears (64) are installed at both ends of the power gear (63) and two retainer roller gears (62) are installed at both ends of the retainer roller (61). A different number of gears may be installed, and it is not difficult to change the use of two power gears (64) and two retainer roller gears (62) for each of the power gear (63) and the retainer roller (61) in FIG. 8 to the use of one power gear (64) and one retainer roller gear (62), so the drawing and detailed description are omitted. It can be referenced that the method of changing the two driving gears (24) and two retainer roller gears (22) used for each driving gear (23) and retainer roller (21) in Fig. 4 to one driving gear (44) and one retainer roller gear (42) used for each driving gear (43) and retainer roller (41) in Fig. 6 is changed.

Fig. 9 shows another basic principle of the rolling bearing according to the present invention. Here, the rolling element (83) is one of a ball or roller, such as a ball, a cylindrical roller, a needle roller, or a tapered roller, and the rolling element (83) and the retainer roller (81) rotate in opposite directions while making rolling contact. They rotate at the same linear speed or the same circumferential speed at the point of contact, and there is no sliding contact. In addition, the rolling element (83) is in rolling contact with the outer ring (85) and the inner ring (86). Therefore, the rolling element (83) only makes rolling contact and does not make sliding contact. The retainer roller (81) does not make contact with the outer ring (85) and the inner ring (86).

It is preferable that the diameters of the electric parts (83) are the same. It is also preferable that the diameters of the retainer rollers (81) are the same. This is because if the diameters are different, the rotation speeds may be different even if the revolution speeds are the same.

The retainer roller (81) does not play any role in or is not affected by the load applied to the outer ring (85) and inner ring (86).

The shapes of the retainer roller (81), outer ring (85), and inner ring (86) may vary depending on the shape of the driving body (83).

As shown in Fig. 9, it would be ideal if there is no gap between the driving body (83) and the retainer roller (81) and they can maintain firm contact with each other. However, if there is even a small gap during operation, the retainer roller (81) may come out of its current position.

Fig. 10 shows a case where the electric body (83) of Fig. 9 is a ball, and shows more specific examples of shapes such as a ball-shaped electric body (93), a roller-shaped retainer roller (91), and a retainer roller groove (99) in the retainer roller (91).

The retainer roller groove (99) in the retainer roller (91) may be replaced with any one of the retainer roller gears (22, 62) shown above or the retainer roller gear (92) of FIG. 10.

The electric motor (93) and the retainer roller (91) are in rolling contact with each other. It is preferable that the part of the retainer roller (91) that comes into contact with the electric motor (93) be concave to match the shape of the electric motor (93) so that the retainer roller (91) cannot move left and right with respect to the electric motor (93).

FIG. 11 shows a case where the driving body (83) of FIG. 9 is one of the rollers, such as a cylindrical roller, a needle roller, or a tapered roller, and shows more specific examples of shapes, such as a roller-shaped driving body (103), a retainer roller (101), a driving body groove (104), and a retainer roller groove (109).

The retainer roller groove (109) in the retainer roller (101) may be replaced with any one of the retainer roller gears (22, 62) shown above or the retainer roller gear (102) of FIG. 11.

When the electric body (103) has a tapered roller shape, the retainer roller (101) also has a tapered roller shape. The drawing is omitted.

The driving element (103) and the retainer roller (101) come into contact with each other and make rolling contact. It is preferable that the driving element groove (104) be wider and deeper than the retainer roller groove (109) so that the retainer outer ring (117) and the retainer inner ring (118) shown in FIGS. 12 to 14 do not come into contact with the driving element groove (104).

A retainer roller (121) having a sprocket gear-shaped retainer roller gear (92) as shown in the figure below and a retainer outer ring (127) and a retainer inner ring (128) in the shape of a perforated ring that can be used together can be used as a substitute for a retainer roller (91), a retainer outer ring (117), and a retainer inner ring (118) having retainer roller grooves (99).

The retainer inner ring (118) supports the retainer roller (91) from the inside to the outside, and the retainer outer ring (117) supports the retainer roller (91) from the outside to the inside, so that the assembled shape can be maintained without falling apart. When the retainer roller (91) rotates in one direction, the retainer outer ring (117) and the retainer inner ring (118) rotate in opposite directions.

The left picture of Fig. 14 shows a part of a cross-section of an assembly of a retainer roller (91), a retainer outer ring (117), and a retainer inner ring (118) shown in Fig. 13, in which ball-shaped rolling elements (93) shown in Fig. 10 are installed between the retainer rollers (91), and an outer ring (135) and an inner ring (136) are installed. The rolling elements (93) are not in the same cross-section as the retainer roller (91), but are indicated by a dotted line to indicate their relative positions.

Instead of the retainer roller groove (99), the retainer outer ring (117), and the retainer inner ring (118), the retainer roller gear (62), the retainer outer ring (67), and the retainer inner ring (70) shown previously may be used, or the retainer roller gear (92), the retainer outer ring (127), and the retainer inner ring (128) shown in FIG. 13 may be used, and if necessary, including in such cases, the retainer roller (91) in FIG. 14 may protrude to both sides of the outer ring (135) and the inner ring (136).

It is desirable that the gap between the retainer rollers (91) be maintained constant. To do so, it is desirable that the retainer outer ring (117) and the retainer inner ring (118) are engaged without slipping in the retainer roller groove (99).

When a retainer roller gear (92) is used, the retainer outer ring (127) and the retainer inner ring (128) are engaged with the retainer roller gear (92).

The driving body (93) is in rolling contact with the retainer roller (91), the outer ring (135), and the inner ring (136), and the retainer roller (91), the retainer outer ring (117), and the retainer inner ring (118) do not contact the outer ring (135) and the inner ring (136).

The retainer roller groove (99) must have a gear formed with teeth that mesh with the teeth of the gears on the retainer outer ring (117) and the retainer inner ring (118).

The right-hand drawings (139, 140) of FIG. 14 show examples of teeth that can be used around the retainer outer ring (117) and the retainer inner ring (118).

There are several restrictions on the number of teeth of the gear or retainer roller gear (92) of the retainer roller home (99) and the radius of the pitch circle of each gear. This is because the spacing between the retainer rollers (91) must be arranged at a constant level.

The left drawing of Fig. 15 shows a part of a cross-section of a body assembled in the same manner as the assembly of the retainer roller (91), the retainer outer ring (117), and the retainer inner ring (118) shown in Fig. 13, except that the retainer roller (91) is replaced with the retainer roller (101) shown in Fig. 11, assembled with the retainer outer ring (147) and the retainer inner ring (148), and roller-shaped rolling elements (103) shown in Fig. 11 are installed between the retainer rollers (101), and the outer ring (145) and the inner ring (146) are installed. The rolling elements (103) are not in the same cross-section as the retainer roller (101), but are indicated by a dotted line to indicate their relative positions.

Instead of the retainer roller groove (109), the retainer outer ring (147), and the retainer inner ring (148), the retainer roller gear (62), the retainer outer ring (67), and the retainer inner ring (70) shown in the front may be used, or the retainer roller gear (92), the retainer outer ring (127), and the retainer inner ring (128) shown in Fig. 13 may be used, and if necessary, including in such a case, the retainer roller (101) in the left drawing of Fig. 15 may protrude to both sides of the outer ring (145) and the inner ring (146).

It is desirable that the gap between the retainer rollers (101) be maintained constant. To do so, it is desirable that the retainer outer ring (147) and the retainer inner ring (148) are engaged with the retainer roller groove (109) without slipping.

When a retainer roller gear (102) is used, a retainer outer ring (127) and a retainer inner ring (128) are engaged with the retainer roller gear (102).

The driving element (103) is in rolling contact with the retainer roller (101), the outer ring (145), and the inner ring (146), and the retainer roller (101), the retainer outer ring (147), and the retainer inner ring (148) do not contact the outer ring (145) and the inner ring (146). The retainer outer ring (147) and the retainer inner ring (148) do not contact the driving element (103) and the driving element groove (104).

The retainer roller groove (109) must have a gear formed with teeth that mesh with the teeth of the gears on the retainer outer ring (147) and the retainer inner ring (148).

The right drawings (139, 140) of FIG. 14 show examples of teeth that can be used around the retainer outer ring (147) and the retainer inner ring (148).

There are several restrictions on the number of teeth of the gear or retainer roller gear (102) of the retainer roller home (109) and the radius of the pitch circle of each gear. This is because the spacing between the retainer rollers (101) must be arranged at a constant level.

There is no limitation on the number, position, width, and gear tooth shape of the retainer roller grooves (109) installed in the retainer roller (101). The left figure of Fig. 15 shows an example in which two retainer roller grooves (109) are installed in the retainer roller (101).

The right picture of Fig. 15 shows the appearance where the driving element (103) and the retainer roller (101) in the left picture of Fig. 15 are changed to a driving element (153) and a retainer roller (151) in the shape of a tapered roller. The retainer outer ring (157) and the retainer inner ring (158) are also changed to a tapered ring shape, and the outer ring (155) and the inner ring (156) are also changed to a tapered shape. The driving element (153) is not in the same cross section as the retainer roller (151), but is indicated by a dotted line to indicate the relative position.

Instead of the retainer roller groove (159), the retainer outer ring (157), and the retainer inner ring (158), the retainer roller gear (62), the retainer outer ring (67), and the retainer inner ring (70) shown in the foregoing may be used, or the retainer roller gear (92), the retainer outer ring (127), and the retainer inner ring (128) shown in Fig. 13 may be used, and if necessary, including in such a case, the retainer roller (151) in the right drawing of Fig. 15 may protrude to both sides of the outer ring (155) and the inner ring (156).

It is desirable that the gap between the retainer rollers (151) be maintained constant. To do so, it is desirable that the retainer outer ring (157) and the retainer inner ring (158) are engaged with the retainer roller groove (159) without slipping.

The driving element (153) is in rolling contact with the retainer roller (151), the outer ring (155), and the inner ring (156), and the retainer roller (151), the retainer outer ring (157), and the retainer inner ring (158) do not contact the outer ring (155) and the inner ring (156). The retainer outer ring (157) and the retainer inner ring (158) do not contact the driving element (153) and the driving element groove (154).

The retainer roller groove (159) must have a gear formed with teeth that mesh with the teeth of the gears on the retainer outer ring (157) and the retainer inner ring (158).

The right drawings (139, 140) of FIG. 14 show examples of teeth that can be used around the retainer outer ring (157) and the retainer inner ring (158).

There are several restrictions on the number of teeth of the gear or retainer roller gear (102) of the retainer roller groove (159) and the radius of the pitch circle of each gear. This is because the spacing between the retainer rollers (151) must be arranged at a constant level.

There is no limitation on the number, position, width, and gear tooth shape of the retainer roller grooves (159) installed in the retainer roller (151). The right figure of Fig. 15 shows an example in which two retainer roller grooves (159) are installed in the retainer roller (151).

The right part of Fig. 14 shows shapes of gears (139, 140) that can be used around the retainer outer ring (117, 147, 157) and the retainer inner ring (118, 148, 158). However, the present invention is not limited to these shapes, and various methods can be used, such as replacing the gear shape with something that looks like a string of beads or a pearl necklace. The retainer roller grooves (99, 109, 159) must have teeth that fit and can mesh with the teeth used in the retainer outer ring (117, 147, 157) and the retainer inner ring (118, 148, 158).

Fig. 16 is a diagram showing what the English letters used in the description of the above Fig. 3 indicate. The radius (r) of the pitch circle of the electric element gear is the same as the radius of the electric element (163), and the radius (s) of the pitch circle of the retainer roller gear is the same as the radius of the retainer roller (161). The radius (d) of the pitch circle of the gear of the retainer inner ring is the same as the radius of the raceway of the retainer inner ring, and the radius (e) of the pitch circle of the gear of the retainer outer ring is the same as the radius of the raceway of the retainer outer ring.

Fig. 17 shows another basic principle of the cloud bearing according to the present invention. It has the same shape as Fig. 2 except that the retainer roller (11) and the retainer roller gear (12) are omitted, but the basic principle is different from Fig. 1. In Fig. 17, the rolling elements (13) can maintain a constant gap from each other without the retainer roller (11).

FIG. 17 shows a case where the driving element (13) is one of the rollers, such as a cylindrical roller, a needle roller, or a tapered roller, and a driving element gear (14) is installed on the driving element (13), an outer ring (15) and an inner ring (18) are formed with an outer ring retainer groove (16) and an inner ring retainer groove (19), respectively, and a retainer outer ring (17) and a retainer inner ring (20) are installed in the outer ring retainer groove (16) and the inner ring retainer groove (19), respectively. The driving element gear (14) meshes with the retainer outer ring (17) and the retainer inner ring (20). It is preferable that the diameter of the pitch circle of the driving element gear (14) be the same as the diameter of the driving element (13). Therefore, the driving element (13) rotates without slipping with respect to the outer ring (15) and the inner ring (18).

The rolling elements (13) come into rolling contact with the outer ring (15) and the inner ring (18). In this way, all rolling elements (13) rotate at the same speed, and the gap between the rolling elements (13) is continuously maintained.

It is preferable that the diameters of the electric motors (13) be the same. This is because if the diameters are different, the rotation speed may be different even if the revolution speed is the same.

The power gear (14), the retainer outer ring (17), and the retainer inner ring (20) do not play any role in or are affected by the load applied to the outer ring (15) and the inner ring (18).

Depending on the shape of the driving element (13), the shapes of the driving element gear (14), outer ring (15), inner ring (18), outer ring retainer groove (16), inner ring retainer groove (19), retainer outer ring (17), and retainer inner ring (20) may vary.

Fig. 18 shows another basic principle of the cloud bearing according to the present invention. In the cloud bearing of Fig. 17, the rolling element (13) and the rolling element gear (14) are integrated to become a gear rolling element (173), and the outer ring retainer groove (16) and the inner ring retainer groove (19) are excluded, and the outer ring (15), the inner ring (18), the retainer outer ring (17), and the retainer inner ring (20) remain, but the basic principle is different from that of Fig. 17. In Fig. 18, the gear rolling elements (173) maintain a constant gap from each other without a retainer roller.

Fig. 18 shows a case where the gear driving body (173) is one of a gear that can replace a spur gear or a spur gear with a spur gear shape or a bevel gear that can replace a bevel gear or a bevel gear with a bevel gear shape, and gears are formed on the periphery of the gear driving body (173), and the gears of the gear driving body (173) mesh with the gears of the retainer outer ring (177) and the retainer inner ring (180) installed on the outer ring (175) and the inner ring (178). In this way, all the gear driving bodies (173) rotate without slipping with respect to the outer ring (175) and the inner ring (178), rotate at the same speed, and the gap between the gear driving bodies (173) is continuously maintained.

The gear drive element (173), retainer outer ring (177), and retainer inner ring (180) fully bear the load applied to the outer ring (175) and inner ring (178).

Depending on the shape of the gear drive element (173), the shapes of the outer ring (175), inner ring (178), retainer outer ring (177), and retainer inner ring (180) may vary.

Fig. 19 shows a case where the driving element (13) of Fig. 17 is one of the rollers without a taper, such as a cylindrical roller or a needle roller, and shows more specific examples of shapes, such as a roller-shaped driving element (23), a spur gear-shaped driving element gear (24), a retainer outer ring (27), and a retainer inner ring (30).

In Fig. 19, since the electric gear (24) and the retainer roller gear (12) do not mesh as in Fig. 3, the electric gear (24) may have a sprocket gear shape instead of a spur gear, and the retainer outer ring (27) and the retainer inner ring (30) may have a shape of a ring with holes. The electric gear (34) at the lower right shows a sprocket gear shape, and the retainer outer ring (37) and the retainer inner ring (40) show a ring shape with holes.

There is no limitation on the number, position, width, and tooth shape of the electric gear (24) installed in the electric body (23).

Fig. 19 shows an example in which two power gears (24) are installed at each end of the power gear (23). A different number of gears may be installed, and Figs. 21 and 22 show an example in which one power gear (44) is installed on the power gear (43).

There are several restrictions on the number of teeth and the pitch radius of the electric gear (24). This is because the gap between the electric gears (23) must be arranged at a constant level.

Fig. 20 shows two parts of a cross-section of the driving element (23), driving element gear (24), retainer outer ring (27), and retainer inner ring (30) shown in Fig. 19, installed between the outer ring (25) and the inner ring (28).

The retainer inner ring (30) is installed in the inner ring retainer groove (29) without rotating, and the retainer outer ring (27) is installed in the outer ring retainer groove (26) without rotating.

In the cross-sectional view centered on the driving element (23) on the left side of Fig. 20, the driving element gear (24) is meshed with the retainer outer ring (27) and the retainer inner ring (30), and the driving element (23) is in contact with the inner ring (28) and the outer ring (25), and the cross-sectional view on the right side shows the inner ring (28), the outer ring (25), the retainer outer ring (27), and the retainer inner ring (30).

As described through Fig. 19, the sprocket gear-shaped power transmission gear (34), the holed ring-shaped retainer outer ring (37) and the retainer inner ring (40) of Fig. 19 may also be used in place of the power transmission gear (24), the retainer outer ring (27), and the retainer inner ring (30) of Fig. 20.

Fig. 20 shows an example in which two power gears (24) are installed at both ends of a power gear (23). A different number of gears may be installed, and Figs. 21 and 22 show an example in which one power gear (44) is installed on a power gear (43).

Fig. 21 shows, similarly to Fig. 19, a case where the driving element (13) of Fig. 17 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, and shows more specific examples of shapes, such as a roller-shaped driving element (43), a spur gear-shaped driving element gear (44), a retainer outer ring (47), and a retainer inner ring (50).

In Fig. 21, since the power gear (44) and the retainer roller gear (42) do not mesh as in Fig. 5, the power gear (44) may have a sprocket gear shape instead of a spur gear, and the retainer outer ring (47) and the retainer inner ring (50) may have a shape of a perforated ring. The power gear (34) in Fig. 19 shows a sprocket gear shape, and the retainer outer ring (37) and the retainer inner ring (40) show a shape of a perforated ring.

There are no restrictions on the position, width, or tooth shape of the electric gear (44) installed in the electric body (43).

In Fig. 19, two power gears (24) are installed at both ends of the power gear (23), whereas in Fig. 21, one power gear (44) is installed at the center of the power gear (43). Here, other secondary changes due to changes in the number and positions of the power gears (44) can be clearly seen.

There are several restrictions on the number of teeth and the pitch radius of the electric gear (44). This is because the gap between the electric gears (43) must be arranged at a constant level.

Fig. 22 shows two parts of a cross-section of the driving element (43), driving element gear (44), retainer outer ring (47), and retainer inner ring (50) shown in Fig. 21, installed between the outer ring (45) and the inner ring (48).

The retainer inner ring (50) is installed in the inner ring retainer groove (49) without rotating, and the retainer outer ring (47) is installed in the outer ring retainer groove (46) without rotating.

In the cross-sectional view centered on the driving element (43) on the left side of Fig. 22, the driving element gear (44) is meshed with the retainer outer ring (47) and the retainer inner ring (50), and the driving element (43) is in contact with the inner ring (48) and the outer ring (45), and the cross-sectional view on the right side shows the inner ring (48), the outer ring (45), the retainer outer ring (47), and the retainer inner ring (50).

As described through Fig. 21, the sprocket gear-shaped power transmission gear (34), the holed ring-shaped retainer outer ring (37) and the retainer inner ring (40) of Fig. 19 may also be used in place of the power transmission gear (44), the retainer outer ring (47), and the retainer inner ring (50) of Fig. 22.

In Fig. 20, two power gears (24) are installed at both ends of the power gear (23), whereas in Fig. 22, one power gear (44) is installed at the center of the power gear (43). Here, other secondary changes due to changes in the number and positions of the power gears (44) can be clearly seen.

Fig. 23 shows a case where the driving element (13) of Fig. 17 is one of the tapered rollers, and shows more specific examples of shapes such as a tapered roller-shaped driving element (63), a bevel gear-shaped driving element gear (64), a retainer outer ring (67), and a retainer inner ring (70).

In Fig. 23, since the electric gear (64) and the retainer roller gear (62) do not mesh as in Fig. 7, the electric gear (64) may have a sprocket gear shape instead of a bevel gear, and the retainer outer ring (67) and the retainer inner ring (70) may have a shape of a perforated ring. The electric gear (34) of Fig. 19 shows a sprocket gear shape, and the retainer outer ring (37) and the retainer inner ring (40) show a shape of a perforated ring.

There is no limitation on the number, position, width, and tooth shape of the electric gear (64) installed in the electric body (63).

Fig. 23 shows an example in which two power gears (64) are installed at each end of the power gear (63). A different number of gears may be installed, but it is not difficult to change the use of two power gears (64) in the power gear (63) in Fig. 23 to the use of one power gear (64), so the drawing and detailed description are omitted. It may be referenced to change the use of two power gears (24) in the power gear (23) in Fig. 19 to the use of one power gear (44) in the power gear (43) in Fig. 21.

There are several restrictions on the number of teeth and the pitch radius of the electric gear (64). This is because the gap between the electric gears (63) must be arranged at a constant level.

Figure 24 shows two parts of a cross-section of the driving element (63), driving element gear (64), retainer outer ring (67), and retainer inner ring (70) shown in Figure 23, installed between the tapered outer ring (65) and inner ring (68).

The retainer inner ring (70) is installed in the inner ring retainer groove (69) without rotating, and the retainer outer ring (67) is installed in the outer ring retainer groove (66) without rotating.

In the cross-sectional view centered on the driving element (63) on the left side of Fig. 24, the driving element gear (64) is meshed with the retainer outer ring (67) and the retainer inner ring (70), and the driving element (63) is in contact with the inner ring (68) and the outer ring (65), and the cross-sectional view on the right side shows the inner ring (68), the outer ring (65), the retainer outer ring (67), and the retainer inner ring (70).

As described through Fig. 23, the sprocket gear-shaped power transmission gear (34), the holed ring-shaped retainer outer ring (37) and the retainer inner ring (40) of Fig. 19 may also be used in place of the power transmission gear (64), the retainer inner ring (70), and the retainer outer ring (67) of Fig. 24.

Fig. 24 shows an example in which two power gears (64) are installed at both ends of a power gear (63). A different number of gears may be installed, and since it is not difficult to change the use of two power gears (64) in the power gear (63) in Fig. 24 to the use of one power gear (64), the drawing and detailed description are omitted. You may refer to the method of changing the use of two power gears (24) in the power gear (23) in Fig. 20 to the use of one power gear (44) in the power gear (43) in Fig. 22.

Fig. 25 shows a case where the gear driving body (173) of Fig. 18 is one of the spur gears, and shows more specific examples of shapes such as a spur gear-shaped gear driving body (243), a retainer outer ring (247), and a retainer inner ring (250).

There are no restrictions on the number, width, and tooth shape of the gear drive unit (243).

There are several restrictions on the number of teeth of the gear drive unit (243) and the radius of the pitch circle of the gear of the gear drive unit (243). This is because the gap between the gear drive units (243) must be arranged at a constant level.

Figure 26 shows two parts of a cross-section of the gear drive element (243), retainer outer ring (247), and retainer inner ring (250) shown in Figure 25, installed between the outer ring (245) and the inner ring (248).

The retainer inner ring (250) is installed so as not to rotate on the inner ring (248), and the retainer outer ring (247) is installed so as not to rotate on the outer ring (245).

In the cross-sectional view centered on the gear drive element (243) on the left side of Fig. 26, the gear drive element (243) is meshed with the retainer outer ring (247) and the retainer inner ring (250), and in the cross-sectional view on the right side, the outer ring (245), the inner ring (248), the retainer outer ring (247), and the retainer inner ring (250) are shown.

Fig. 27 shows a case where the gear driving body (173) of Fig. 18 is one of the bevel gears, and shows more specific examples of shapes such as a bevel gear-shaped gear driving body (263), a retainer outer ring (267), and a retainer inner ring (270).

There are no restrictions on the number, width, and tooth shape of the gear drive unit (263).

There are several restrictions on the number of teeth and the pitch radius of the gear drive element (263). This is because the gap between the gear drive elements (263) must be arranged at a constant level.

Figure 28 shows two parts of a cross-section of the gear drive element (263), retainer outer ring (267), and retainer inner ring (270) shown in Figure 27, installed between the outer ring (265) and the inner ring (268).

The retainer inner ring (270) is installed so as not to rotate on the inner ring (268), and the retainer outer ring (267) is installed so as not to rotate on the outer ring (265).

In the cross-sectional view centered on the gear drive element (263) on the left side of Fig. 28, the gear drive element (263) is meshed with the retainer outer ring (267) and the retainer inner ring (270), and in the cross-sectional view on the right side, the inner ring (268), the outer ring (265), the retainer inner ring (270), and the retainer outer ring (267) are shown.

Fig. 29 shows another basic principle of a rolling bearing according to the present invention. Here, the rolling element (283) is one of rollers, such as a cylindrical roller, a needle roller, or a tapered roller, and the rolling element (283) is in rolling contact with the outer ring (285) and the inner ring (286). Therefore, the rolling element (283) only makes rolling contact and does not make sliding contact.

It is preferable that the diameters of the electric motors (283) be the same. This is because if the diameters are different, the rotation speeds may be different even if the revolution speeds are the same.

Depending on the shape of the driving body (283), the shape of the outer ring (285) and the inner ring (286) may vary.

Fig. 30 shows a case where the driving body (283) of Fig. 29 is one of the rollers, such as a cylindrical roller, a needle roller, or a tapered roller, and shows more specific examples of shapes, such as a roller-shaped driving body (293) and a driving body groove (294).

The electric body (293) may have the shape of a tapered roller. The drawing is omitted.

Figure 32 shows a shape in which the retainer outer ring (307) and the retainer inner ring (308) shown in Figure 31 are assembled with the rolling element (293) using the rolling element groove (294) in the rolling element (293).

The retainer inner ring (308) supports the rolling element (293) from the inside to the outside, and the retainer outer ring (307) supports the rolling element (293) from the outside to the inside, so that the assembled shape can be maintained without falling apart. When the rolling element (293) rotates in one direction, the retainer outer ring (307) and the retainer inner ring (308) rotate in opposite directions.

Figures 33 (329, 330) show examples of teeth that can be used around the retainer outer ring (307) and the retainer inner ring (308).

The left picture of Fig. 34 shows a part of a cross-section of an assembly of a driving body (293), a retainer outer ring (307), and a retainer inner ring (308) shown in Fig. 32, with the outer ring (335) and the inner ring (336) installed.

If necessary, the driving element (293) in the left picture of Fig. 34 may protrude from both the outer ring (335) and the inner ring (336).

There is no limitation on the number, position, width, and gear tooth shape of the driving body grooves (294) in the driving body (293). The number of retainer outer rings (307) and retainer inner rings (308) also changes depending on the number of driving body grooves (294).

It is desirable that the gap between the driving elements (293) be maintained constant. To do so, it is desirable that the retainer outer ring (307) and the retainer inner ring (308) are engaged with the driving element grooves (294) without slipping.

The driving body (293) is in rolling contact with the outer ring (335) and the inner ring (336), and the retainer outer ring (307) and the retainer inner ring (308) do not contact the outer ring (335) and the inner ring (336). However, there is no limitation.

The driving body home (294) must have a gear formed with teeth that mesh with the teeth of the gears on the retainer outer ring (307) and the retainer inner ring (308).

There are several restrictions on the number of teeth and the radius of the pitch circle of the gear in the driving element groove (294). This is because the gap between the driving elements (293) must be arranged at a constant level.

There is no limitation on the number, position, width, and gear tooth shape of the driving body grooves (294) installed in the driving body (293). The left figure of Fig. 34 shows an example in which two driving body grooves (294) are installed in the driving body (293).

The right picture of Fig. 34 shows the shape in which the driving element (293) in the left picture of Fig. 34 has been changed to a driving element (313) in the shape of a tapered roller. The retainer outer ring (317) and the retainer inner ring (318) have also been changed to a tapered ring shape, and the outer ring (315) and the inner ring (316) have also been changed to a tapered shape.

If necessary, the driving element (313) in the right figure of Fig. 34 may protrude from both the outer ring (315) and the inner ring (316).

There is no limitation on the number, position, width, and gear tooth shape of the driving body grooves (314) in the driving body (313). The number of retainer outer rings (317) and retainer inner rings (318) also changes depending on the number of driving body grooves (314).

It is desirable that the gap between the driving elements (313) be maintained constant. To do so, it is desirable that the retainer outer ring (317) and the retainer inner ring (318) are engaged with the driving element groove (314) without slipping.

The driving body (313) is in rolling contact with the outer ring (315) and the inner ring (316), and the retainer outer ring (317) and the retainer inner ring (318) do not contact the outer ring (315) and the inner ring (316). However, there is no limitation.

The driving body groove (314) must have a gear formed with teeth that mesh with the teeth of the gears on the retainer outer ring (317) and the retainer inner ring (318).

Figures 33 (329, 330) show examples of teeth that can be used around the retainer outer ring (317) and the retainer inner ring (318).

There are several restrictions on the number of teeth and the radius of the pitch circle of the gear in the driving element groove (314). This is because the gap between the driving elements (313) must be arranged at a constant level.

There is no limitation on the number, position, width, and gear tooth shape of the driving body grooves (314) installed in the driving body (313). The right figure of Fig. 34 shows an example in which two driving body grooves (314) are installed in the driving body (313).

The right side of Fig. 33 shows shapes of gears (329, 330) that can be used around the retainer outer ring (307, 317) and the retainer inner ring (308, 318). However, the present invention is not limited to these shapes, and various methods can be used, such as replacing the gear shape with something that looks like a string of beads or a pearl necklace. The driving body grooves (294, 314) must have teeth that fit and mesh with the teeth used in the retainer outer ring (307, 317) and the retainer inner ring (308, 318).

Fig. 35 shows another basic principle of the cloud bearing according to the present invention. In Fig. 17, the retainer outer ring (17) is installed in the outer ring retainer groove (16), and the retainer inner ring (20) is installed in the inner ring retainer groove (19), whereas in Fig. 35, the retainer outer ring (347) is changed so that it does not contact the outer ring (345) in the outer ring retainer groove (346), and the retainer inner ring (350) is changed so that it does not contact the inner ring (348) in the inner ring retainer groove (349).

In Fig. 17, the speed at which the driving element (13) moves in contact with the outer ring (15) and the inner ring (18) and the speed at which the driving element gear (14) moves in mesh with the retainer outer ring (17) and the retainer inner ring (20) must be the same, and therefore, it is preferable that the diameter of the pitch circle of the driving element gear (14) be the same as the diameter of the driving element (13). However, in Fig. 35, the diameter of the pitch circle of the driving element gear (344) does not need to be the same as the diameter of the driving element (343). The driving elements (343) can maintain a constant gap from each other.

FIG. 35 shows a case where the driving element (343) is one of the rollers, such as a cylindrical roller, a needle roller, or a tapered roller, and a driving element gear (344) is installed on the driving element (343), and an outer ring (345) and an inner ring (348) are formed with an outer ring retainer groove (346.16) and an inner ring retainer groove (349.19), respectively.

The electric gear (343) meshes with the retainer outer ring (347) and the retainer inner ring (350).

The rolling elements (343) make rolling contact with the outer ring (345) and the inner ring (348). In this way, all the rolling elements (343) rotate at the same speed, and the gap between the rolling elements (343) is continuously maintained.

It is preferable that the diameters of the electric motors (343) be the same. This is because if the diameters are different, the rotation speed may be different even if the revolution speed is the same.

The power gear (344), the retainer outer ring (347), and the retainer inner ring (350) do not play any role in or are not affected by the load applied to the outer ring (345) and the inner ring (348).

Depending on the shape of the driving element (243), the shapes of the driving element gear (344), outer ring (345), inner ring (348), retainer outer ring (349), and retainer inner ring (350) may vary.

Fig. 36 shows a case where the driving element (343) of Fig. 35 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, and shows more specific examples of shapes, such as a roller-shaped driving element (353), a spur gear-shaped driving element gear (354), a retainer outer ring (357), and a retainer inner ring (360).

In Fig. 36, since the electric gear (24) and the retainer roller gear (12) do not mesh as in Fig. 3, the electric gear (354) may have a sprocket gear shape instead of a spur gear, and the retainer outer ring (357) and the retainer inner ring (360) may have a shape of a perforated ring. The electric gear (364) at the lower right shows a sprocket gear shape, and the retainer outer ring (367) and the retainer inner ring (370) show a shape of a perforated ring.

There is no limitation on the number, position, width, and tooth shape of the electric gear (354) installed in the electric body (353).

Fig. 36 shows an example in which two power gears (354) are installed at both ends of a power gear (353). A different number of gears may be installed, and Figs. 38 and 39 show an example in which one power gear (374) is installed on a power gear (373).

There are several restrictions on the number of teeth and the pitch radius of the electric gear (354). This is because the gap between the electric gears (353) must be arranged at a constant level.

Figure 37 shows two parts of a cross-section of the driving element (353), driving element gear (354), retainer outer ring (357), and retainer inner ring (360) shown in Figure 36, installed between the outer ring (355) and the inner ring (358).

The retainer inner ring (360) is installed so as not to contact the inner ring retainer groove (359), and the retainer outer ring (357) is installed so as not to contact the outer ring retainer groove (356).

In the cross-sectional view centered on the driving element (353) on the left side of Fig. 37, the driving element gear (354) is meshed with the retainer outer ring (357) and the retainer inner ring (360), and the driving element (353) is in contact with the inner ring (358) and the outer ring (355), and the cross-sectional view on the right side shows the inner ring (358), the outer ring (355), the retainer outer ring (357), and the retainer inner ring (360).

As described through FIG. 36, the sprocket gear-shaped power transmission gear (364), the holed ring-shaped retainer outer ring (367), and the retainer inner ring (370) of FIG. 36 may also be used in place of the power transmission gear (354), the retainer outer ring (357), and the retainer inner ring (360) of FIG. 37.

Fig. 37 shows an example in which two power gears (354) are installed at both ends of a power gear (353). A different number of gears may be installed, and Figs. 38 and 39 show an example in which one power gear (374) is installed on a power gear (373).

Fig. 38 shows a case where the driving element (343) of Fig. 35 is one of non-tapered rollers, such as a cylindrical roller or a needle roller, similar to Fig. 36, and shows more specific examples of shapes, such as a roller-shaped driving element (373), a spur gear-shaped driving element gear (374), a retainer outer ring (377), and a retainer inner ring (380). The difference is that the driving element gear (374) is changed to one.

In Fig. 38, since the electric gear (44) and the retainer roller gear (42) do not mesh as in Fig. 5, the electric gear (374) may have a sprocket gear shape instead of a spur gear, and the retainer outer ring (377) and the retainer inner ring (380) may have a shape of a perforated ring. The electric gear (364) of Fig. 36 shows a sprocket gear shape, and the retainer outer ring (367) and the retainer inner ring (370) show a shape of a perforated ring.

There are no restrictions on the position, width, and tooth shape of the electric gear (374) installed in the electric body (373).

While Fig. 36 shows a case where two power gears (354) are installed at both ends of a power gear (353), Fig. 38 shows a case where one power gear (374) is installed at the center of a power gear (373). Here, other secondary changes due to changes in the number and positions of power gears (374) can be clearly seen.

Figure 39 shows two parts of a cross-section of the driving element (373), driving element gear (374), retainer outer ring (377), and retainer inner ring (380) shown in Figure 38, installed between the outer ring (375) and the inner ring (378).

The retainer inner ring (380) is installed so as not to contact the inner ring retainer groove (379), and the retainer outer ring (377) is installed so as not to contact the outer ring retainer groove (376).

In the cross-sectional view centered on the driving element (373) on the left side of Fig. 39, the driving element gear (374) is meshed with the retainer outer ring (377) and the retainer inner ring (380), and the driving element (373) is in contact with the inner ring (378) and the outer ring (375), and the cross-sectional view on the right side shows the shape of the inner ring (378), the outer ring (375), the retainer outer ring (377), and the retainer inner ring (380).

As described through FIG. 36, the sprocket gear-shaped power transmission gear (364), the holed ring-shaped retainer outer ring (367), and the retainer inner ring (370) of FIG. 36 may also be used in place of the power transmission gear (374), the retainer outer ring (377), and the retainer inner ring (380) of FIG. 39.

In Fig. 37, two power gears (354) are installed at both ends of the power gear (353), whereas in Fig. 39, one power gear (374) is installed at the center of the power gear (373). Here, other secondary changes due to changes in the number and positions of the power gears (374) can be clearly seen.

Fig. 40 shows a case where the driving element (343) of Fig. 35 is one of the tapered rollers, and shows more specific examples of shapes such as a tapered roller-shaped driving element (393), a bevel gear-shaped driving element gear (394), a retainer outer ring (397), and a retainer inner ring (400).

In Fig. 40, since the electric gear (64) and the retainer roller gear (62) do not mesh as in Fig. 7, the electric gear (394) may have a sprocket gear shape instead of a bevel gear, and the retainer outer ring (397) and the retainer inner ring (400) may have a shape of a perforated ring. The electric gear (364) of Fig. 36 shows a sprocket gear shape, and the retainer outer ring (367) and the retainer inner ring (370) show a shape of a perforated ring.

There is no limitation on the number, position, width, and tooth shape of the electric gear (394) installed in the electric body (393).

Fig. 40 shows an example in which two power gears (394) are installed at each end of the power gear (393). A different number of gears may be installed, and it is not difficult to change the use of two power gears (394) in the power gear (393) in Fig. 40 to the use of one power gear (394), so the drawing and detailed description are omitted. It may be referenced to change the use of two power gears (354) in the power gear (353) in Fig. 36 to the use of one power gear (374) in the power gear (373) in Fig. 38.

There are several restrictions on the number of teeth and the pitch radius of the electric gear (394). This is because the gap between the electric gears (393) must be arranged at a constant level.

Figure 41 shows two parts of a cross-section of the driving element (393), driving element gear (394), retainer outer ring (397), and retainer inner ring (400) shown in Figure 40, installed between the tapered outer ring (395) and inner ring (398).

The retainer inner ring (400) is installed in the inner ring retainer groove (399) without rotating, and the retainer outer ring (397) is installed in the outer ring retainer groove (396) without rotating.

In the cross-sectional view centered on the driving element (393) on the left side of Fig. 41, the driving element gear (394) is meshed with the retainer outer ring (397) and the retainer inner ring (400), and the driving element (393) is in contact with the tapered inner ring (398) and the outer ring (395), and the cross-sectional view on the right side shows the inner ring (398), the outer ring (395), the retainer outer ring (397), and the retainer inner ring (400).

As described through FIG. 36, the sprocket gear-shaped power transmission gear (364), the holed ring-shaped retainer outer ring (367), and the retainer inner ring (370) of FIG. 36 may also be used in place of the power transmission gear (394), the retainer outer ring (397), and the retainer inner ring (400) of FIG. 41.

Fig. 41 shows an example in which two power gears (394) are installed at both ends of a power gear (393). A different number of gears may be installed, and it is not difficult to change the use of two power gears (394) in the power gear (393) in Fig. 41 to the use of one power gear (394), so the drawing and detailed description are omitted. It may be referenced to change the use of two power gears (354) in the power gear (353) in Fig. 37 to the use of one power gear (374) in the power gear (373) in Fig. 39.

The above-mentioned rolling gears may have the same revolution speed and rotation speed because of the gears, but if the diameters of the rolling elements are different even slightly, even if their revolution speeds are the same, their rotation speeds may be different even slightly, and if the diameters of the rolling elements and the pitch circle diameters of the rolling element gears are different even slightly, there may be a difference even slightly between the rotation speed of the rolling element and the rotation speed of the rolling element gear of the rolling element, and if the diameters of the retainer roller and the pitch circle diameters of the retainer roller gear are different even slightly, there may be a difference even slightly between the rotation speed of the retainer roller and the rotation speed of the retainer roller gear. Therefore, it may be good to allow a little bit of rotation between the rolling elements and the rolling element gears and between the retainer rollers and the retainer roller gears depending on the strength of the pressure.

The cloud bearing according to the present invention can be used as a cloud bearing without any special restrictions in places requiring rapid rotation without consideration of friction, wear, heat generation, etc.

Claims

In cloud bearings,

A rolling element having a rolling element gear as one of a cylindrical roller, a needle roller, and a tapered roller;

A retainer outer ring that meshes with the above-mentioned electric gear;

A retainer inner ring that meshes with the above-mentioned electric gear;

An outer ring in cloud contact with the above-mentioned electric body; and

A rolling bearing characterized by including an inner ring in cloud contact with the above-mentioned rolling body.
In claim 1,

A rolling bearing characterized by further comprising a retainer roller, which is a roller having the same shape as the rolling element, and which is one of a cylindrical roller, a needle roller, and a tapered roller, and which is meshed with the rolling element gear and has a retainer roller gear that does not mesh with the retainer outer ring and the retainer inner ring, and which makes rolling contact with the rolling element.
In cloud bearings,

A gear driving element having gears formed on the periphery of a roller, which is any one of a cylindrical roller, a needle roller, and a tapered roller;

An outer ring having a retainer outer ring that meshes with the gear of the above gear driving body; and

A cloud bearing characterized by including an inner ring having a retainer inner ring that meshes with the gear of the gear driving body.
In cloud bearings,

A rolling element which is any one of a ball, a cylindrical roller, a needle roller, and a tapered roller;

If the above-mentioned driving element is a ball, it is a cylindrical roller; if the above-mentioned driving element is a cylindrical roller, it is a cylindrical roller; if the above-mentioned driving element is a needle roller, it is a needle roller; if the above-mentioned driving element is a tapered roller, it is a tapered roller; and a retainer roller having either a retainer roller groove or a retainer roller gear and making rolling contact with the above-mentioned driving element;

A retainer outer ring that engages with one of the gears of the retainer roller groove or the retainer roller gear provided on the retainer roller;

A retainer inner ring that engages with one of the gears of the retainer roller groove or the retainer roller gear provided on the retainer roller;

An outer ring in cloud contact with the above-mentioned electric body; and

A rolling bearing characterized by including an inner ring in cloud contact with the above-mentioned rolling body.
In cloud bearings,

A rolling element having a rolling element groove as one of a cylindrical roller, a needle roller, and a tapered roller;

A retainer outer ring that meshes with the gear of the above-mentioned driving body groove;

A retainer inner ring that meshes with the gear of the above-mentioned driving body groove;

An outer ring in cloud contact with the above-mentioned electric body; and

A rolling bearing characterized by including an inner ring in cloud contact with the above-mentioned rolling body.