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CN201347962Y - Roller bearing - Google Patents

Roller bearing Download PDF

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Publication number
CN201347962Y
CN201347962Y CNU2008202322264U CN200820232226U CN201347962Y CN 201347962 Y CN201347962 Y CN 201347962Y CN U2008202322264 U CNU2008202322264 U CN U2008202322264U CN 200820232226 U CN200820232226 U CN 200820232226U CN 201347962 Y CN201347962 Y CN 201347962Y
Authority
CN
China
Prior art keywords
inner ring
ring
outer ring
cylindrical rollers
rows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008202322264U
Other languages
Chinese (zh)
Inventor
陶永强
何华
孙德忠
林永浩
孙玉江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Quanxin Rolling Mill Bearing Manufacturing Co Ltd
Original Assignee
Dalian Quanxin Rolling Mill Bearing Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalian Quanxin Rolling Mill Bearing Manufacturing Co Ltd filed Critical Dalian Quanxin Rolling Mill Bearing Manufacturing Co Ltd
Priority to CNU2008202322264U priority Critical patent/CN201347962Y/en
Application granted granted Critical
Publication of CN201347962Y publication Critical patent/CN201347962Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Rolling Contact Bearings (AREA)

Abstract

The utility model discloses a roller bearing, which comprises an integral outer ring (01), an integral inner ring (02) and two rows of cylindrical rollers arranged between the inner ring and the outer ring, wherein the two rows of the cylindrical rollers are arranged in intervals, the middle portion of the inner wall of the inner ring (02) is provided with a ring-shaped groove, the middle portion of the groove is evenly provided with oil holes at the circumferential direction, and each oil hole is radially opened on the wall of the inner ring along the inner ring, and is communicated with a space between the two rows of the cylindrical rollers. The two ends of the outer ring (01) and the inner ring (02) are provided with edge retainer rings (3), and the edge retainer rings (3) are respectively embedded in sunken areas which are respectively and correspondingly arranged on the end surfaces of the outer ring (01) and the inner ring (02). The roller bearing increases the rated load, and prolongs the service life, wherein the rated service life of the bearing is increased by one time, the structure and the design are reasonable, the stress concentration of the inner ring and the outer ring is concealed, the strength and the service life of the bearing are increased, and the bearing has the function of self-aligning.

Description

Roller bearing
Technical Field
The invention belongs to a roller bearing.
Background
The roller bearing is suitable for high-speed trains such as trains, and the bearing is usually imported from foreign countries. Therefore, a roller bearing suitable for the requirements of China needs to be designed.
Disclosure of Invention
The invention aims to provide a cylindrical roller bearing which is excellent in material selection, reasonable in structure, prolonged in service life, safe and reliable, is suitable for a high-speed railway passenger car and is used for replacing an import bearing
The roller bearing comprises an integral outer ring, an integral inner ring and two rows of cylindrical rollers positioned between the inner ring and the outer ring, wherein the two rows of cylindrical rollers are arranged at intervals. The middle part of the inner wall of the inner ring is provided with an annular groove, and oil injection holes are uniformly distributed on the circumference of the middle part of the groove; each oil filling hole is radially opened on the wall of the inner ring along the inner ring and communicated to a space between the two rows of cylindrical rollers. And the two ends of the outer ring and the inner ring are provided with edge retaining rings, and the edge retaining rings are embedded into the corresponding concave parts of the end surfaces of the outer ring and the inner ring respectively.
The roller bearing is improved in that the middle part of the cylindrical surface of the cylindrical roller is provided with an arc bulge, and the positions of the outer ring and the inner ring corresponding to the cylindrical roller form an arc recess.
The bearing of the invention adopts vacuum degassing steel with good material selection, has high material purity and less gas content, can improve the rated load of the bearing and prolong the service life of the bearing; the rated service life of the bearing can be doubled; the structural design is reasonable, the stress concentration of the inner ring and the outer ring is eliminated, the strength is improved, the service life of the bearing is prolonged, and the self-aligning function is realized.
Drawings
FIG. 1 is a schematic view of a half-section structure of a roller bearing according to the present invention
Detailed Description
The roller bearing of the present invention, as shown in fig. 1, comprises an integral outer ring 01, an integral inner ring 02, and two rows of cylindrical rollers 04 located between the inner ring and the outer ring. Two rows of cylindrical rollers are arranged at intervals. An annular groove is formed in the middle of the inner wall of the inner ring 02, and oil injection holes are uniformly distributed in the middle of the groove on the circumference. Each oil filling hole is radially opened on the wall of the inner ring along the inner ring and communicated to a space between two rows of cylindrical rollers. The two ends of the outer ring and the inner ring are provided with edge retainer rings 03, and the edge retainer rings 03 are embedded into the corresponding concave parts on the end surfaces of the outer ring 01 and the inner ring 02 respectively.
In addition, preferably, the middle part of the cylindrical surface of the cylindrical roller is convex, and the positions of the outer ring 01 and the inner ring 02 corresponding to the cylindrical roller form a circular arc recess.
The roller bearing comprises an outer ring 01, an inner ring 02, an edge retainer ring 03 and a rolling body. The inner ring 01, the outer ring 02, the rolling body 04 and the side retainer ring 03 are all made of vacuum degassing steel in GB/T18254 standard, the rolling body is provided with convexity in the middle, the outer diameter of the outer ring is provided with slight convexity, and the middle of the inner ring is provided with an oil hole.

Claims (2)

1. A roller bearing is characterized by comprising an integral outer ring (01), an integral inner ring (02) and two rows of cylindrical rollers (04) positioned between the inner ring and the outer ring, wherein the two rows of cylindrical rollers are arranged at intervals; wherein,
an annular groove is formed in the middle of the inner wall of the inner ring (02), and oil injection holes are uniformly distributed in the middle of the groove on the circumference; each oil filling hole is formed in the inner ring wall in the radial direction of the inner ring and communicated to a space between the two rows of cylindrical rollers;
the inner ring is characterized in that side check rings (03) are arranged at two ends of the outer ring (01) and the inner ring (02), and the side check rings (03) are embedded into the corresponding concave positions on the end faces of the outer ring (01) and the inner ring (02).
2. The roller bearing according to claim 1, wherein the cylindrical rollers are provided with a convex circular arc at the center thereof, and the outer ring (01) and the inner ring (02) are provided with a concave circular arc at positions corresponding to the cylindrical rollers.
CNU2008202322264U 2008-12-26 2008-12-26 Roller bearing Expired - Fee Related CN201347962Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202322264U CN201347962Y (en) 2008-12-26 2008-12-26 Roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202322264U CN201347962Y (en) 2008-12-26 2008-12-26 Roller bearing

Publications (1)

Publication Number Publication Date
CN201347962Y true CN201347962Y (en) 2009-11-18

Family

ID=41367432

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008202322264U Expired - Fee Related CN201347962Y (en) 2008-12-26 2008-12-26 Roller bearing

Country Status (1)

Country Link
CN (1) CN201347962Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182757A (en) * 2011-03-03 2011-09-14 上海川野精密轴承有限公司 Supporting idler wheel bearing
CN102996629A (en) * 2012-12-12 2013-03-27 中山市盈科轴承制造有限公司 Cylindrical roller bearing
CN103629503A (en) * 2013-12-16 2014-03-12 浙江宁帆轴承有限公司 Oiler for double-inner-ring double-column angular contact bearing
US10837488B2 (en) 2018-07-24 2020-11-17 Roller Bearing Company Of America, Inc. Roller bearing assembly for use in a fracking pump crank shaft

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182757A (en) * 2011-03-03 2011-09-14 上海川野精密轴承有限公司 Supporting idler wheel bearing
CN102996629A (en) * 2012-12-12 2013-03-27 中山市盈科轴承制造有限公司 Cylindrical roller bearing
CN102996629B (en) * 2012-12-12 2015-11-04 中山市盈科轴承制造有限公司 Roller bearing
CN103629503A (en) * 2013-12-16 2014-03-12 浙江宁帆轴承有限公司 Oiler for double-inner-ring double-column angular contact bearing
CN103629503B (en) * 2013-12-16 2015-12-30 浙江宁帆轴承有限公司 The oil gun of a kind of pair of inner ring double row angular contact bearing
US10837488B2 (en) 2018-07-24 2020-11-17 Roller Bearing Company Of America, Inc. Roller bearing assembly for use in a fracking pump crank shaft

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091118

Termination date: 20100126