Serie 45 - Frame J PDF

Series 45
Axial Piston
Open Circuit Pumps
Technical
Information
Series 45 Axial Piston Open Circuit Pumps
Technical Information
Revisions
History of Revisions Table of Revisions

Date Page Changed Rev.
January 2011 45, 50 060B max. speed 3120, mounting flange corrections GC
November 2010 45 add bearing life data for 065C, 075C GB
October 2010 various edits and changes - major reorganization GA
October 2009 22, 27, 31, 41, various minor edits, add EJ, EA control dimensions FO
43, 47
July 2009 34, 28 remove T2 shaft option from L and K Frames FN
May 2009 various revise fitting depth warning to LS port X FM
March 2009 various add fitting depth warning to LS port X FL
October 2008 62, 65 add SAE-C two bolt housing FK
September 2008 58-62 dimension changes for Frame J FJ
June 2008 78, 93, 94, 95 various minor edits, removed S5 shaft from Frame E FI
May 2008 32, 74, 75, 92 correction to schematics drawings FH
April 2008 76 correction to S2 spline width (inch measurement only) FG
April 2008 52, 53 correction to schematics drawings FG
April 2008 27, 50, 72, 89 add Load sensing - RP and BP must be 20 bar FF
April 2008 76 Correction to S2 shaft - Class 6 and 37.91 mm length FF
March 2008 4 Correction to TOC FE
February 2008 Various Add LS setting to specifications for each frame FD
December 2007 Various Relocate F and E sections, add displacement limiter info. FC
November 2007 50 Change load sensing setting - bar increments FB
September 2007 Various Add Frame F, remove Frame G, and many edits FA
November 2006 51, 52, 53 Revised schematics information E
August 2005 - Removed Frame H, added Frame J D
April 2003 Added Frame E C
May 2001 - Added Frame H and Frame G B
May 1999 - First printing A
© 2011 Sauer-Danfoss. All rights reserved.
Sauer-Danfoss accepts no responsibility for possible errors in catalogs, brochures and other printed material.
Sauer -Danfoss reserves the right to alter its products without prior notice. This also applies to products already
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Sauer-Danfoss Group.
Front cover illustrations: F301 389, P003 515
2 520L0519 • Rev GC • January 2011

Contents
General information Overview............................................................................................................................................................ 5

Design................................................................................................................................................................. 5
Benefits............................................................................................................................................................... 6
Typical applications........................................................................................................................................ 6
The Series 45 product family....................................................................................................................... 7
Load sensing open circuit system............................................................................................................. 8
Pressure compensated controls................................................................................................................. 9
Remote pressure compensated controls..............................................................................................10
Load sensing controls..................................................................................................................................11
Electrical on/off pressure compensated controls..............................................................................12
Operating parameters.................................................................................................................................13
Design parameters.......................................................................................................................................15
Shaft loads..................................................................................................................................................16
Sizing equations............................................................................................................................................20
Frames L and K Design...............................................................................................................................................................21

Technical Specifications..............................................................................................................................22
Order code.......................................................................................................................................................23
Performance L25C.........................................................................................................................................27
Performance L30D........................................................................................................................................28
Performance K38C........................................................................................................................................29
Performance K45D........................................................................................................................................30
Hydrauilic Controls.......................................................................................................................................31
Electric Controls.............................................................................................................................................33
Installation drawings....................................................................................................................................37
Displacement limiter....................................................................................................................................43
Frame J Design...............................................................................................................................................................44
Order code.......................................................................................................................................................46
Performance J45B.........................................................................................................................................51
Performance J51B.........................................................................................................................................52
Performance J60B.........................................................................................................................................53
Performance J65C.........................................................................................................................................54
Performance J75C.........................................................................................................................................55
Pressure Compensated Controls.............................................................................................................56
Remote Pressure Compensated Controls.............................................................................................56
Load sensing/Pressure compensated Controls..................................................................................57
Input shafts......................................................................................................................................................60
Auxiliary mounting pads............................................................................................................................67
520L0519 • Rev GC • January 2011 3

Contents
Frame F Design...............................................................................................................................................................72
Order code.......................................................................................................................................................74
Performance F74B.........................................................................................................................................78
Performance F90C.........................................................................................................................................79
Hydraulic Controls.........................................................................................................................................80
Input shafts......................................................................................................................................................83
Auxiliary mounting pads............................................................................................................................88
Frame E Design...............................................................................................................................................................92
Order code.......................................................................................................................................................94
Performance E100B......................................................................................................................................98
Performance E130B......................................................................................................................................99
Performance E147C................................................................................................................................... 100
Hydraulic Controls...................................................................................................................................... 101
Electric Controls.......................................................................................................................................... 103
Input shafts................................................................................................................................................... 104
Installation drawings................................................................................................................................. 106
Auxiliary mounting pads......................................................................................................................... 110
Displacement limiters............................................................................................................................... 113
4 520L0519 • Rev GC • January 2011

General information
Overview Series 45 is a complete family of high performance variable displacement, axial piston
pumps. Each frame is designed to exceed the demanding work function requirements
of the mobile equipment marketplace. Each frame within the Series 45 family is uniquely
designed to optimize performance, size, and cost.
Design High Performance

• Displacements from 25 cm³ - 147 cm³ [1.53 - 8.97 in3/rev]
• Speeds up to 3600 rpm
• Pressures up to 310 bar [4495 psi]
• Variety of control system options including load sensing and pressure compensated
Latest Technology
• Customer-driven using quality function deployment (QFD) and design for
manufacturability (DFM) techniques
• Optimized design maximizes efficiency and quiet operation
• Computer-modeled castings to optimize inlet conditions for maximum pump speed
• Compact package size minimizing installation space requirements
• Heavy-duty tapered roller bearings for long life
• Single piece rigid housing to reduce noise and leak paths
• Integrated controls for high speed response and system stability
Reliability
• Designed to rigorous standards
• Proven in both laboratory and field
• Manufactured to rigid quality
standards
• Long service life
• Significantly fewer parts
• No gasket joints
• Robust input shaft bearings to
handle large external shaft loads
• Integrated gauge ports for
monitoring operating conditions
520L0519 • Rev GC • January 2011 5

General information
Benefits Reduced Installation Costs

• Through-drive capability for multi-circuit systems
• Range of mounting flanges, shafts and porting options for ease of installation
• Compact size minimizes installation space requirements
• Help meet engine emission standards
• Reduce engine size by managing power usage more effectively
Reduce Operating Costs

• Optimize machine power usage to maximize fuel economy
• Simple design reduces service requirements
• Heavy duty taper roller shaft bearings provide long service life
Increased Customer Satisfaction

• Reduced noise for operator comfort
• High performance increases productivity
Reduced Heat Load on Cooling System

• High efficiency reduces hydraulic heat generation
• Allows for smaller cooling packages
Typical applications • Cranes • Paving Machines

• Telescopic handlers • Mining Equipment
• Forklift trucks • Mowers
• Wheel loaders • Dozers
• Sweepers • Drilling Machines
• Backhoe loaders • Mini-Excavators
• Forestry and agricultural machinery • Other Applications
• Fan drives
6 520L0519 • Rev GC • January 2011

General information
The Series 45 product Basic units

family The series 45 family of open circuit, variable piston pumps, offers a range of
displacements from 25 to 147 cm³/rev [1.53 to 8.97 in3/rev]. With maximum speeds up to
3600 rpm and continuous operating pressures up to 310 bar [4495 psi], product selection
is easily tailored to the flow and pressure requirements of individual applications.
K/L Frame J Frame F Frame E Frame
General performance specifications for the series 45 pump family

Speed Pressure Theoretical flow
Pump Displacement Mounting
Continuous Max. Min. Maximum (at rated speed)
Frame Model cm 3
in
3
min-1 (rpm) min-1 (rpm) min-1 (rpm) bar psi US gal/min l/min Flange
Frame L L25C 25 1.53 3200 3600 500 260 3770 21.0 80.0 SAE B - 2 bolt
See page 21 L30D 30 1.83 3200 3600 500 210 3045 25.4 96.0 SAE B - 2 bolt
Frame K K38C 38 2.32 2650 2800 500 260 3770 26.6 100.7 SAE B - 2 bolt
See page 21 K45D 45 2.75 2650 2800 500 210 3045 31.5 119.3 SAE B - 2 bolt
SAE B 2-bolt
J45B 45 2.75 2800 3360 500 310 4495 33.3 126.0
SAE C 2 and 4-bolt
SAE B 2-bolt
J51B 51 3.11 2700 3240 500 310 4495 36.4 137.7
SAE C 2 and 4-bolt
SAE B 2-bolt
J60B 60 3.66 2600 3120 500 310 4495 41.2 156.0
See page 44 SAE C 2 and 4-bolt
SAE B 2-bolt
J65C 65 3.97 2500 3000 500 260 3770 42.9 162.6
SAE C 2 and 4-bolt
SAE B 2-bolt
J75C 75 4.58 2400 2880 500 260 3770 47.5 180.0
SAE C 2 and 4-bolt
Frame F F74B 74 4.52 2400 2800 500 310 4495 46.9 177.6 SAE B 2-bolt
See page 72 SAE C 4-bolt
F90C 90 5.49 2200 2600 500 260 3770 52.3 198 SAE B 2-bolt
SAE C 4-bol
Frame E E100B 100 6.10 2450 2880 500 310 4495 64.7 245.0 SAE C 4-bolt
See page 92 E130B 130 7.93 2200 2600 500 310 4495 75.5 286.0 SAE C 4-bolt
E147C 147 8.97 2100 2475 500 260 3770 81.5 308.7 SAE C 4-bolt
520L0519 • Rev GC • January 2011 7

General information
Load sensing open circuit The pump receives fluid directly from the reservoir through the inlet line. A screen in the
system inlet line protects the pump from large contaminants. The pump outlet feeds directional
control valves such as PVG-32’s, hydraulic integrated circuits (HIC), and other types of
control valves. The PVG valve directs pump flow to cylinders, motors and other work
functions. A heat exchanger cools the fluid returning from the valve. A filter cleans the
fluid before it returns to the reservoir.
Flow in the circuit determines the speed of the actuators. The position of the PVG valve
determines the flow demand. A hydraulic pressure signal (LS signal) communicates
demand to the pump control. The pump control monitors the pressure differential
between pump outlet and the LS signal, and regulates servo pressure to control the
swashplate angle. Swashplate angle determines pump flow.
Actuator load determines system pressure. The pump control monitors system pressure
and will decrease the swashplate angle to reduce flow if system pressure reaches the
PC setting. A secondary system relief valve in the PVG valve acts as a back-up to control
system pressure.
Pictorial circuit diagram
8 520L0519 • Rev GC • January 2011

General information
Pressure compensated Operation

controls The PC control maintains constant system pressure in the hydraulic circuit by varying
the output flow of the pump. Used with a closed center control valve, the pump remains
in high pressure standby mode at the PC setting with zero flow until the function is
actuated. This condition is often called a dead head condition.
Typical operating curve Simple closed-center circuit

Q max
Flow
PC setting
0
0 Pressure P101 166E
Once the closed center valve is opened,

P101 965
the PC control senses the immediate
drop in system pressure and increases
pump flow by increasing the swashplate
angle. The pump continues to increase flow until system pressure reaches the PC setting.
If system pressure exceeds the PC setting, the PC control reduces the swashplate angle to
maintain system pressure by reducing flow. The PC control continues to monitor system
pressure and changes swashplate angle to match the output flow with the work function
pressure requirements.
If the demand for flow exceeds the capacity of the pump, the PC control directs the
pump to maximum displacement. In this condition, actual system pressure depends on
the actuator load.
For additional system Each section includes control schematic diagrams, setting ranges, and response /
protection, install a relief recovery times for each control available. Response is the time (in milliseconds) for the
valve in the pump outlet pump to reach zero displacement when commanded by the control. Recovery is the
line. time (in milliseconds) for the pump to reach full displacement when commanded by the
control. Actual times can vary depending on application conditions.
Pressure compensated system characteristics

• Constant pressure and variable flow
• High pressure standby mode when flow is not needed
• System flow adjusts to meet system requirements
• Single pump can provide flow to multiple work functions
• Quick response to system flow and pressure requirements
Typical applications for pressure compensated systems

• Constant force cylinders (bailers, compactors, refuse trucks)
• On/off fan drives
• Drill rigs
• Sweepers
• Trenchers
520L0519 • Rev GC • January 2011 9

General information
Remote pressure The remote PC control is a two-stage control that allows multiple PC settings. Remote
compensated controls PC controls are commonly used in applications requiring low and high pressure PC
operation.
Typical operating curve Closed center circuit with remote PC

Q max
Flow
Remote PC setting
PC setting
0
0 Pressure P101 969E
P101 966
The remote PC control uses a pilot line connected to an external hydraulic valve. The
external valve changes pressure in the pilot line, causing the PC control to operate at a
lower pressure. When the pilot line is vented to reservoir, the pump maintains pressure
at the load sense setting. When pilot flow is blocked, the pump maintains pressure at the
PC setting. An on-off solenoid valve can be used in the pilot line to create a low-pressure
standby mode. A proportional solenoid valve, coupled with a microprocessor control,
can produce an infinite range of operating pressures between the low pressure standby
setting and the PC setting.
Each section includes control schematic diagrams, setting ranges, and response /
recovery times for each control available. Response is the time (in milliseconds) for the
pump to reach zero displacement when commanded by the control. Recovery is the
time (in milliseconds) for the pump to reach full displacement when commanded by the
control. Actual times can vary depending on application conditions.
Size the external valve and plumbing for a pilot flow of 3.8 l/min [1 US gal/min]. For
additional system protection, install a relief valve in the pump outlet line.
Remote pressure compensated system characteristics

• Constant pressure and variable flow
• High or low pressure standby mode when flow is not needed
• System flow adjusts to meet system requirements
• Single pump can provide flow to multiple work functions
Typical applications for remote pressure compensated systems

• Modulating fan drives
• Anti-stall control with engine speed feedback
• Front wheel assist
• Road rollers
• Combine harvesters
• Wood chippers
10 520L0519 • Rev GC • January 2011

General information
Load sensing controls Operation

The LS control matches system requirements for both pressure and flow in the circuit
regardless of the working pressure. Used with a closed center control valve, the pump
remains in low-pressure standby mode with zero flow until the valve is opened. The LS
setting determines standby pressure.
Typical operating curve Load sensing circuit

Q max
Flow
PC setting
0
0 Pressure
P101 968E
P101 967
Most load sensing systems use parallel, closed center, control valves with special porting that
allows the highest work function pressure (LS signal) to feed back to the LS control. Margin
pressure is the difference between system pressure and the LS signal pressure. The LS
control monitors margin pressure to read system demand. A drop in margin pressure means
the system needs more flow. A rise in margin pressure tells the LS control to decrease flow.
LS control with bleed orifice

The load sense signal line requires a bleed orifice to prevent high-pressure lockup of the
pump control. Most load-sensing control valves include this orifice. An optional internal
bleed orifice is available, for use with control valves that do not internally bleed the LS
signal to tank.
Integral PC function
The LS control also performs as a PC control, decreasing pump flow when system
pressure reaches the PC setting. The pressure compensating function has priority over
the load sensing function.
Each section includes control schematic diagrams, setting ranges, and response /
For additional system recovery times for each control available. Response is the time (in milliseconds) for the
protection, install a relief pump to reach zero displacement when commanded by the control. Recovery is the
valve in the pump outlet time (in milliseconds) for the pump to reach full displacement when commanded by the
line. control. Actual times can vary depending on application conditions.
Load sensing system characteristics

• Variable pressure and flow
• Low pressure standby mode when flow is not needed
• System flow adjusted to meet system requirements
• Lower torque requirements during engine start-up
• Single pump can supply flow and regulate pressure for multiple circuits
520L0519 • Rev GC • January 2011 11

General information
Electrical on/off pressure The electrical on/off pressure compensated control allows the pump to operate as a
compensated controls PC type control under normal operating conditions. A solenoid valve overrides the PC
control allowing the pump to operate in a low-pressure standby mode. This function
provides reduced horsepower and torque loss in certain situations. It may be particularly
useful to reduce loads on a system during engine start.
When closed, the solenoid valve prevents flow across the LS spool gain orifice, defeating
the LS spool. The pump then functions as a PC control pump. When open, the solenoid
valve allows flow across the LS spool gain orifice to reservoir. This flow generates a
pressure differential across the LS spool that shifts the spool and de-strokes the pump.
The pump then operates in a low-pressure standby condition. The solenoid valve is
available in a normally closed or normally open configuration.
Electric Control (frames K and L)
System pressure
Servo pressure
Pilot Pressure
Drain
Solenoid
LS adjustment LS spool
PC adjustment PC spool
P106 183E
Electric Control (frames E, F, and J)
System pressure
Servo pressure
Pilot Pressure
Drain
Solenoid
LS spool LS adjustment
PC spool PC adjustment
P108 407E
12 520L0519 • Rev GC • January 2011

General information
Operating parameters Fluids

Ratings and performance data for Series 45 products are based on operating with
premium hydraulic fluids containing oxidation, rust, and foam inhibitors. These
include premium turbine oils, API CD engine oils per SAE J183, M2C33F or G automatic
transmission fluids (ATF), Dexron II (ATF) meeting Allison C-3 or Caterpillar T0‑2
requirements, and certain specialty agricultural tractor fluids. For more information on
hydraulic fluid selection, see Sauer-Danfoss publications 520L0463 Hydraulic Fluids and
Lubricants, Technical Information, and 520L0465 Experience with Biodegradable Hydraulic
Fluids, Technical Information.
Viscosity Fluid viscosity limits

Maintain fluid viscosity within the Condition mm2/s (cSt) SUS
recommended range for maximum continuous 9 58
ν min.
efficiency and pump life. intermittent 6.4 47
Minimum Viscosity– This should continuous 110 500
only occur during brief occasions of ν max. intermittent
1000 4700
maximum ambient temperature and (cold start)
severe duty cycle operation.
Maximum Viscosity – This should only
occur at cold start. Pump performance
will be reduced. Limit speeds until the
system warms up. Temperature limits
Minimum
- 40° C [- 40° F]
Temperature (intermittent, cold start)
Maintain fluid temperature within the Continuous 82° C [180° F]
limits shown in the table. Minimum Maximum 104° C [220° F]
temperature relates to the physical
properties of the component materials.
Cold oil will not affect the durability of the pump components. However, it may affect
the ability of the pump to provide flow and transmit power. Maximum temperature
is based on material properties. Don’t exceed it. Measure maximum temperature at the
hottest point in the system. This is usually the case drain.
Ensure fluid temperature and viscosity limits are concurrently satisfied.
Inlet pressure Inlet pressure limits

Maintain inlet pressure within the limits Minimum 0.8 bar absolute [6.7 in. Hg vac.]
shown in the table. Refer to Inlet pressure (continuous) (at reduced maximum speed)
vs. speed charts for each displacement. Minimum 0.5 bar absolute [15.1 in. Hg vac.]
(cold start)
Case pressure Case pressure limits

Maintain case pressure within the limits Maximum 0.5 bar [7 psi] above inlet
shown in the table. The housing must (continuous)
always be filled with hydraulic fluid. Intermittent 2 bar [29 psi] above inlet
(cold start)
C Caution
Operating outside of inlet and case pressure limits will damage the pump. To minimize
this risk, use full size inlet and case drain plumbing, and limit line lengths.
520L0519 • Rev GC • January 2011 13

General information
Operating parameters Pressure ratings

(continued) The specification tables in each section give maximum and continuous pressure ratings
for each displacement. Not all displacements within a given frame operate under the
same pressure limits. Definitions of the operating pressure limits appear below.
System pressure is the differential pressure between the outlet and inlet ports. It is the
dominant operating variable affecting hydraulic unit life. High system pressure, which
results from high load, reduces expected life. System pressure must remain at or below
maximum working pressure during normal operation to achieve expected life.
Maximum working pressure is the highest, regularly occurring operating pressure.

Operating at or below this pressure should yield satisfactory product life. For all
applications, the load should move below this pressure.
Speed ratings
The specification tables in each section give minimum, maximum, and rated speeds for
each displacement. Not all displacements within a given frame operate under the same
speed limits. Definitions of these speed limits appear below.
Rated speed is the fastest recommended operating speed at full displacement and
1 bar abs. [0 in Hg vac] inlet pressure. Operating at or below this speed should yield
satisfactory product life.
Maximum speed is the highest recommended operating speed at full power

conditions. Operating at or beyond maximum speed requires positive inlet pressure
and/or a reduction of pump outlet flow. Refer to Inlet pressure vs. speed charts for each
displacement.
Minimum speed is the lowest operating speed allowed. Operating below this speed will
not yield satisfactory performance.
Duty cycle and pump life

Knowing the operating conditions of your application is the best way to ensure proper
pump selection. With accurate duty cycle information, your Sauer-Danfoss representative
can assist in calculating expected pump life.
Speed, flow, and inlet pressure

Inlet pressure vs. speed charts in each section show the relationship between speed,
flow, and inlet pressure for each
displacement. Use these charts to ensure Sample inlet pressure vs. speed chart
Exa
your application operates within the 1.6
100% 90% 80%
8
Max. speed
prescribed range. 1.5
mp
(psi gauge)
Inlet Pressure (bar abs)
1.4 6
le
1.3 4
The charts define the area of inlet 1.2 Rated speed
2
1.1
pressures and speeds allowed for a 1.0 0
(in Hg vac)
given displacement. Operating at lower 0.9 3

0.8 6
displacements allows greater speed or 0.7 9
lower inlet pressure. 0.6
2800 3000 3200 3400 3600 3800 4000
Shaft Speed min-1(rpm) P108 486E
Operating limit at 80% displacement

14 520L0519 • Rev GC • January 2011

General information
Design parameters Installation

Series 45 pumps may be installed in any position. To optimize inlet conditions, install the
pump at an elevation below the minimum reservoir fluid level. Design inlet plumbing to
maintain inlet pressure within prescribed limits (see Inlet pressure limits, page 13)
Fill the pump housing and inlet line with clean fluid during installation. Connect the case
drain line to the uppermost drain port (L1 or L2) to keep the housing full during operation.
To allow unrestricted flow to the reservoir, use a dedicated drain line. Connect it below
the minimum reservoir fluid level and as far away from the reservoir outlet as possible.
Use plumbing adequate to maintain case pressure within prescribed limits (see Case
pressure limits, page 13).
Filtration
To prevent damage to the pump, including premature wear, fluid entering the pump
inlet must be free of contaminants. Series 45 pumps require system filtration capable of
maintaining fluid cleanliness at ISO 4406-1999 class 22/18/13 or better.
Sauer-Danfoss does not recommend suction line filtration. Suction line filtration can
cause high inlet vacuum, which limits pump operating speed. Instead we recommend
a 125 µm (150 mesh) screen in the reservoir covering the pump inlet. This protects the
pump from coarse particle ingestion.
Return line filtration is the preferred method for open circuit systems. Consider these
factors when selecting a system filter:
• Cleanliness specifications
• Contaminant ingression rates
• Flow capacity
• Desired maintenance interval
Typically, a filter with a beta ratio of β10 = 10 is adequate. However, because each system
is unique, only a thorough testing and evaluation program can fully validate the
filtration system. For more information, see Sauer-Danfoss publication 520L0467 Design
Guidelines for Hydraulic Fluid Cleanliness.
Reservoir
The reservoir provides clean fluid, dissipates heat, and removes entrained air from the
hydraulic fluid. It allows for fluid volume changes associated with fluid expansion and
cylinder differential volumes. Minimum reservoir capacity depends on the volume
needed to perform these functions. Typically, a capacity of one to three times the pump
flow (per minute) is satisfactory.
Locate the reservoir outlet (suction line) near the bottom, allowing clearance for settling
foreign particles. Place the reservoir inlet (return lines) below the lowest expected fluid
level, as far away from the outlet as possible.
520L0519 • Rev GC • January 2011 15

General information
Design parameters Fluid velocity Recommended fluid velocities

(continued) Choose piping sizes and configurations System lines 6 to 9 m/sec [20 to 30 ft/sec]
sufficient to maintain optimum fluid Suction line 1 to 2 m/sec [4 to 6 ft/sec]
velocity, and minimize pressure drops. Case drain 3 to 5 m/sec [10 to 15 ft/sec]
This reduces noise, pressure drops, and Typical guidelines; obey all pressure ratings.
overheating. It maximizes system life and
performance.
Velocity equations SI units US units
Q = flow (l/min) Q = flow (US gal/min)

A = area (mm²) A = area (in²)
Velocity = 16.67•Q (m/sec) Velocity = 0.321•Q (ft/sec)

A A
Shaft loads
Series 45 pumps have tapered roller bearings capable of accepting external radial and
thrust (axial) loads. The external radial shaft load limits are a function of the load position,
orientation, and the operating conditions of the pump.
The maximum allowable radial load (Re) is based on the maximum external moment (Me)
and the distance (L) from the mounting flange to the load. Compute radial loads using
the formula below. Tables in each section give maximum external moment (Me) and
thrust (axial) load (Tin , Tout) limits for each pump frame size and displacement.
L = Distance from mounting flange

Radial load formula Me = Re•L to point of load
Me = Maximum external moment
Re = Maximum radial side load
Shaft load orientation
30° 330°
0° Re
90° Re 270° Re Tout Tin
Re
Axis of swashplate
rotation L
180° Re Mounting flange

P101 080E
Bearing life
All shaft loads affect bearing life. In applications where external shaft loads can not
be avoided, maximize bearing life by orientating the load between the 30° and 330°
positions, as shown. Tapered input shafts or clamp-type couplings are recommended for
applications with radial shaft loads. Tables in each section give B10 bearing life for each
pump frame size and displacement.
16 520L0519 • Rev GC • January 2011
General information
Design parameters Mounting flange loads

(continued) Adding auxiliary pumps and/or subjecting pumps to high shock loads may overload the
pump mounting flange. Tables in each section give allowable continuous and shock load
moments for each frame size. Applications with loads outside allowable limits require
additional pump support.
• Shock load moment (MS) is the result of an instantaneous jolt to the system.
• Continuous load moments (Mc) are generated by the typical vibratory movement
of the application.
Estimating overhung load moments

Use the equations below to estimate the overhung load moments for multiple pump
mounting. See installation drawings in each section to find the distance from the
mounting flange to the center of gravity for each frame size. Refer to the technical
specifications in each section to find pump weight.
Overhung load example

Center of Gravity (CG) Center of Gravity (CG)
pump 1 pump 2
mounting flange
L1
L2
P101 081E
Shock load formula Ms = Gs•K•(W1•L1+W2•L2+...W •L )

n n
Continuous load formula Mc = Gc•K•(W1•L1+W2•L2+...W •L )

n n
SI units US units
Ms = Shock load moment (N•m) Ms = Shock load moment (lbf•in)
Mc = Continuous (vibratory) load Mc = Continuous (vibratory) load
moment (N•m) moment (lbf•in)
Gs = Acceleration due to external Gs = Acceleration due to external
shock (G’s) shock (G’s)
Gc = Acceleration due to continuous Gc = Acceleration due to continuous
vibration (G’s) vibration (G’s)
K = Conversion factor = 0.00981 K = Conversion factor = 1
Wn = Mass of nth pump (kg) Wn = Weight of nth pump (lb)
Ln = Distance from mounting flange Ln = Distance from mounting flange
to nth pump CG (mm) to nth pump CG (in)
520L0519 • Rev GC • January 2011 17

General information
Design parameters Auxiliary mounting pads

(continued) Auxiliary mounting pads are available for all radial ported Series 45 pumps. Since the
auxiliary pad operates under case pressure, use an O-ring to seal the auxiliary pump
mounting flange to the pad. Oil from the main pump case lubricates the drive coupling.
• All mounting pads meet SAE J744 Specifications.
• The combination of auxiliary shaft torque and main pump torque must not
exceed the maximum pump input shaft rating. Tables in each section give input
shaft torque ratings for each frame size.
• Applications subject to severe vibratory or shock loading may require additional

support to prevent mounting flange damage. Tables in each section give allowable
continuous and shock load moments for each frame size.
• The drawing and table below give mating pump dimensions for each size mount.
Refer to installation drawings in each section for auxiliary mounting pad dimensions.
Mating pump specifications Dimensions

D SAE A SAE B SAE C
max.
82.55 101.60 127.00
E P
max. [3.250] [4.000] [5.000]
Mounting
flange (ref ) F min. spline 6.35 9.65 12.70
B
engagement [0.250] [0.380] [0.500]
for full torque
rating 12.70 15.20 23.37
C
[0.500] [0.600] [0.920]
Undercut
spline PØ 58.20 53.10 55.60
+0 -0.05 D
[+0 -0.002]
[2.290] [2.090] [2.190]
Sled-runner
spline 15.00 17.50 30.50
E
[0.590] [0.690] [1.200]
13.50 14.20 18.30
F
[0.530] [0.560] [0.720]
R 0.8 [0.03] max.
B
max.
Coupling
C Recommended
mm max. cutter clearance
[in.]
2.3 [0.090]
P101 079E
Input shaft torque ratings

Input shaft tables in each section give maximum torque ratings for available input shafts.
Ensure that your application respects these limits.
Maximum torque ratings are based on shaft strength. Do not exceed them.
Coupling arrangements that are not oil-flooded provide a reduced torque rating. Contact
your Sauer-Danfoss representative for proper torque ratings if your application involves
non oil-flooded couplings.
Sauer-Danfoss recommends mating splines adhere to ANSI B92.1-Class 5. Sauer-Danfoss

external splines are modified class 5 fillet root side fit. The external major diameter and
circular tooth thickness dimensions are reduced to ensure a good clearance fit with the
mating spline. Tables in each section give full spline dimensions and data.
18 520L0519 • Rev GC • January 2011

General information
Design parameters Understanding and minimizing system noise

(continued) Charts in each section give sound levels for each frame size and displacement. Sound
level data are collected at various operating speeds and pressures in a semi-anechoic
chamber. Many factors contribute to the overall noise level of any application. Below is
some information to help understand the nature of noise in fluid power systems, and
some suggestions to help minimize it.
Noise is transmitted in fluid power systems in two ways: as fluid borne noise, and
structure borne noise.
Fluid-borne noise (pressure ripple or pulsation) is created as pumping elements

discharge oil into the pump outlet. It is affected by the compressibility of the oil, and
the pump’s ability to transition pumping elements from high to low pressure. Pulsations
travel through the hydraulic lines at the speed of sound (about 1400 m/s [4600 ft/sec]
in oil) until there is a change (such as an elbow) in the line. Thus, amplitude varies with
overall line length and position.
Structure-borne noise is transmitted wherever the pump casing connects to the rest
of the system. The way system components respond to excitation depends on their size,
form, material, and mounting.
System lines and pump mounting can amplify pump noise. Follow these suggestions to
help minimize noise in your application:
• Use flexible hoses.

• Limit system line length.
• If possible, optimize system line position to minimize noise.
• If you must use steel plumbing, clamp the lines.
• If you add additional support, use rubber mounts.
• Test for resonants in the operating range, if possible avoid them.
520L0519 • Rev GC • January 2011 19

General information
Sizing equations Use these equations to help select the right pump size, displacement and power
requirements for your application:
Based on SI units Based on US units

Vg • n • ηv Vg • n • ηv
Flow Output flow Q = (l/min) Output flow Q = (US gal/min)
1000 231
Vg • ∆p Vg • ∆p
Torque Input torque M = (N•m) Input torque M = (lbf•in)
20 • π • ηm 2 • π • ηm
•n•π Q • ∆p M•n•π Q • ∆p
Power Input power P = M
30 000
= 600 • ηt
(kW) Input power P = 198 000
= 1714 • ηt
(hp)
Variables SI units [US units]
Vg = Displacement per revolution cm3/rev [in3/rev]

pO = Outlet pressure bar [psi]
pi = Inlet pressure bar [psi]
∆p = pO - pi (system pressure) bar [psi]
n = Speed min-1 (rpm)
ηv = Volumetric efficiency
ηm = Mechanical efficiency
ηt = Overall efficiency (ηv • ηm)
20 520L0519 • Rev GC • January 2011

Frame J
Design Series 45 Frame J pumps have a single servo piston design with a cradle-type swashplate
set in polymer-coated journal bearings. A bias spring and internal forces increase
swashplate angle. The servo piston decreases swashplate angle. Nine reciprocating
pistons displace fluid from the pump inlet to the pump outlet as the cylinder block
rotates on the pump input shaft. The block spring holds the piston slippers to the
swashplate via the slipper retainer. The cylinder block rides on a bi-metal valve plate
optimized for high volumetric efficiency and low noise. Tapered roller bearings support
the input shaft and a viton lip-seal protects against shaft leaks.
An adjustable one spool (PC only, not shown) or two spool (LS and PC) control senses
system pressure and load pressure (LS controls). The control ports system pressure to the
servo piston to control pump output flow.
Frame J cross section
LS control
(attached to endcap)
LS spool LS adjustment
PC spool PC adjustment
LS control Servo piston

Bias spring
Piston
Slipper
Tapered roller
bearing
Valve
plate
Shaft seal
Cylinder
block
spring
Tapered Input shaft

roller
bearing
Swashplate P104 204E
Cylinder
block Slipper retainer
44 520L0519 • Rev GC • January 2011

Frame J
Technical Specifications J Frame

Unit 045B 051B 060B 065C 075C
Maximum Displacement cm³ [in³] 45 [2.75] 51 [3.11] 60 [3.66] 65 [3.97] 75 [4.58]
Working Input Minimum 500 500 500 500
For general operating Speed Continuous min -1 (rpm) 2800 2700 2600 2500 2400
parameters, including fluid Maximum 3360 3240 3120 3000 2880
viscosity, temperature, and Working Maximum
bar [psi] 310 [4495] 310 [4495] 310 [4495] 260 [3770] 260 [3370]
inlet and case pressures, Pressure
see page 13. For system Flow at rated speed l/min 126 138 156 163 180 [47.6]
(theoretical) [US gal/min] [33.3] [36.4] [41.2] [42.9]
design parameters,
Input torque at maximum N•m/bar 0.717 0.812 0.955 1.035 1.194
including installation, displacement (theoretical) [lbf•in/1000 psi] [237.4] [495.7] [583.2] [631.8] [729]
filtration, reservoir, and line Mass moment of inertia of kg•m² 0.00455 0.00455 0.00455 0.00433 0.00433
velocities, see page 15. internal rotating components [slug•ft²] [0.00336] [0.00336]
[0.00336] [0.00319] [0.00319]
Weight Axial ports 23 [51]
kg [lb]
Radial ports 27 [59]
For definitions of pressure External Shaft External N•m [lbf•in] 226 [2000] 226 [2000] 226 [2000] 226 [2000] 226 [2000]
and speed ratings, Loads moment (Me)
see page 14. For more Thrust in (Tin), N [lbf ] 2200 [495] 2200 [495] 2200 [495] 2200 [495] 2200 [495]
out (Tout)
information on external
Bearing Life at 140 bar 29712 29712 29712 10755 10755
shaft loads, see page 16; (1800 rpm, no [2030 psi]
mounting flange loads, external shaft at 210 bar 6834 6834 6834 2474 2474
see page 17. loading) [3045 psi]
B10 hours
at 260 bar 3151 3151 3151 1810 1810
[3770 psi]
at 310 bar 1666 1666 1666 _ _
[4495 psi]
Mounting Vibratory
SAE-C: 1500 [13300], SAE-B: 735 [6600]
flange load (continuous)
moments N•m [lbf•in]
Shock
SAE-C: 5600 [49600], SAE-B: 2600 [23100]
(maximum)
520L0519 • Rev GC • January 2011 45

Frame J
Order code R S P C D E F G H J K L M N
Code Description
R Product Frame, Variable Open Circuit Pump
S Rotation
P Displacement
C Control Type
D Pressure Compensator Setting
E Load Sense Setting
F Not Used
G Choke Orifice
H Gain Orifice
J Input Shaft/Auxiliary Mount/Endcap
K Shaft Seal/Front Mounting Flange/Housing Ports
L Displacement Limiter
M Special Hardware
N Special Features
R Product J Frame
045B 051B 060B 065C 075C
JR J Frame, variable displacement open circuit pump • • • • •
S Rotation
L Left Hand (counterclockwise) • • • • •
R Right Hand (clockwise) • • • • •
P Displacement
045B 045 cm³/rev [2.75 in³/rev] •
051B 051 cm³/rev [3.11 in³/rev] •
060B 060 cm³/rev [3.66 in³/rev] •
065C 065 cm³/rev [3.97 in³/rev] •
075C 075 cm³/rev [4.58 in³/rev] •
46 520L0519 • Rev GC • January 2011

Frame J
Order code (continued) R S P C D E F G H J K L M N
C Control type J Frame

045B 051B 060B 065C 075C
PC Pressure Compensator • • • • •
BC* Pressure Compensator • • •
LB Load Sensing/Pressure Comp. with internal bleed orifice • • • • •
BB* Load Sensing/Pressure Comp. with internal bleed orifice • • •
LS Load Sensing/Pressure Comp. • • • • •
BS* Load Sensing/Pressure Comp. • • •
FA Load Sensing/Pressure Comp. with electric dump valve • • • • •
(Axial endcap, CCW rotation) or (Radial endcap, CW rotation) only
FB Load Sensing/Pressure Comp. with electric dump valve • • • • •
RP Remote Pressure Compensator • • • • •
BP* Remote Pressure Compensator • • •
AF Electric on/off, 12VDC, Normally Open, Deutsch • • • • •
BF* Electric on/off, 12VDC, Normally Open, Deutsch • • •
AN Electric on/off, 12VDC, Normally Open, Deutsch • • • • •
BN* Electric on/off, 12VDC, Normally Open, Deutsch • • •
AG Electric on/off, 12VDC, Normally Closed, Deutsch • • • • •
BE* Electric on/off, 12VDC, Normally Closed, Deutsch • • •
AR Electric on/off, 12VDC, Normally Closed, Deutsch • • • • •
BR* Electric on/off, 12VDC, Normally Closed, Deutsch • • •
AY Electric on/off, 24VDC, Normally Closed, Deutsch • • • • •
BG* Electric on/off, 24VDC, Normally Closed, Deutsch • • •
CR Electric on/off, 24VDC, Normally Closed, Deutsch • • • • •
DR* Electric on/off, 24VDC, Normally Closed, Deutsch • • •
* Not available on 65cc and 75cc pumps
520L0519 • Rev GC • January 2011 47

Frame J
Order code (continued) R S P C D E F G H J K L M N
D PC setting (2 digit code, 10 bar increments) J Frame

045B 051B 060B 065C 075C
Example 25 = 250 bar (3625 psi)
10–26 100 to 260 bar [1450 to 3771 psi] • • • • •
27-28 270 to 280 bar [3916 to 4061 psi] • • •
29-31 290-310 bar [4206 to 4496 psi] • • •
E Load sensing setting (2 digit code, 1 bar increments)

Example 20 = 20 bar (290 psi)
10-40 10 to 40 bar [175 to 580 psi] • • • • •
NN Not applicable (pressure compensated only • • • • •
controls)
F Not used
NN Not applicable • • • • •
G Pilot/Choke Orifice
N None (standard) • • • • •
H Gain Orifice
3 1.0 mm diameter • • • • •
48 520L0519 • Rev GC • January 2011

Frame J
(continued)
J1 Input Shaft
C2 13 tooth, 16/32 pitch
C3 15 tooth, 16/32 pitch
K4 1.25 inch straight keyed
S1 14 tooth 12/24 pitch
T0 1.25 Inch Taper
J2 Auxiliary Mount
A SAE-A, 9-tooth
B SAE-B, 13-tooth
C SAE-C, 14-tooth
N None
R Running Cover
T SAE-A, 11-tooth
V SAE-BB, 15-tooth
J3 Endcap
2 Radial - Inlet: 4-bolt code 61 split flange/Outlet 4-bolt code 61 split flange
A Radial - Inlet: 4-bolt code 61 split flange/Outlet 4-bolt code 61 split flange /with integrated SAE-A Auxiliary pad
V Radial - Inlet: 4-bolt code 61 split flange/Outlet 4-bolt code 61 split flange /with Displacement Limiter
3 Axial - Inlet: SAE O-ring boss, (1-7/8 threads)/Outlet SAE O-ring boss, (1-5/16 threads)
4 Axial - Inlet: 4-bolt code 61 split flange/Outlet 4-bolt code 61 split flange
W Axial - Inlet: 4-bolt code 61 split flange/Outlet 4-bolt code 61 split flange/ with Displacement Limiter
F Frame J Frame
045B 051B 060B 065C 075C 045B 051B 060B 065C 075C
C2A2* • • • • • K4N3* • • • • •
C2AA* • • • • • K4N4* • • • • •
C2B2* • • • • • K4R2* • • • • •
C2C2* • • • • • K4RV** • • • • •
C2N2* • • • • • S1A2* • • • • •
C2N3* • • • • • S1AA* • • • • •
C2N4* • • • • • S1AV** • • • • •
C2R2* • • • • • S1B2* • • • • •
C2RV** • • • • • S1BV** • • • • •
C3A2* • • • • • S1C2* • • • • •
C3B2* • • • • • S1CV** • • • • •
C3C2* • • • • • S1N2* • • • • •
C3N2* • • • • • S1N3* • • • • •
C3N3* • • • • • S1N4* • • • • •
C3N4* • • • • • S1NW** • • • • •
C3NW** • • • • • S1R2* • • • • •
C3R2* • • • • • S1RV** • • • • •
C3RV** • • • • • S1T2* • • • • •
C3V2* • • • • • S1V2* • • • • •
K4A2* • • • • • T0B2* • • • • •
K4B2* • • • • • T0C2* • • • • •
K4C2* • • • • • T0N4* • • • • •
K4N2* • • • • • T0R2* • • • • •
* NNN Displacement limiter options only ** FFF Displacement limiter options only
520L0519 • Rev GC • January 2011 49
Frame J
(continued)
J Frame
K Shaft seal 045B 061B 060B 065C 075C
A Single (Viton) • • • • •
K Mounting flange and housing port style

2 SAE-C Flange 4-bolt/SAE O-ring boss ports • • • • •
8 SAE-B Flange 2-bolt/SAE O-ring boss ports • • • • •
9 SAE-C Flange 2-bolt/SAE O-ring boss ports • • • • •
K Not used
N Not applicable • • • • •
L Displacement limiter
NNN None • • • • •
FFF Adjustable, factory set at max angle • • • • •
M Special hardware
NNN None • • • • •
N Special features
NNN None • • • • •
50 520L0519 • Rev GC • January 2011

Frame J
Performance Flow and power data valid at 49°C [120°F] and viscosity of 17.8 mm²/sec [88 SUS].
J45B
Flow vs. speed Input power vs. speed

150 100
35 120
125
80
Flow (US gal/min)

30 p si]
495 100
Flow (l/min)
100 r [4
25 0 ba psi]
31 770
Power (kW)
60 80
Power (hp)
[3
bar
75 20 260
15 60
50 40 psi]
r [2 030
10 14 0 ba 40
25 20
5
20
0 0
0 500 1000 1500 2000 2500 3000 3500 0 0
-1
Speed min (rpm) P104 206E 0 500 1000 1500 2000 2500 3000 3500
-1
Speed min (rpm) P104 205E
Efficiency Noise
System Pressure: 310 Bar - Inlet Pressure: 1.0 Bar abs - Inlet Temperature: 49C Inlet Pressure: 1.0 Bar abs - Inlet Temperature: 49C
90
100
Volumetric Efficiency
95
85
low
90 r - No F
310 ba
85 80
Efficiency (%)
Noise (DBA)
Overall Efficiency g Ran

ge w
80 eratin - Full Flo
ral Op 140 bar
75 Gene
75
70
70
65
60 65
55
50 60
500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000
0
Input Speed (rpm) P108 427E Input Speed (rpm) P108 428E
Inlet pressure vs. speed

The chart on the right 100% 90% 80%
shows allowable inlet 1.6
8
pressure and speed at 1.5
(psi gauge)
various displacements.
1.4 6
Greater speeds and lower 1.3 4
inlet pressures are possible 1.2
at reduced displacement. 2
1.1
Operating outside of
1.0 0
(in Hg vac)
acceptable limits reduces

pump life. 0.9 3
0.8 6
0.7 9
0.6
2400 2600 2800 3000 3200 3400 3600
-1
Shaft Speed min (rpm) P104 207E
520L0519 • Rev GC • January 2011 51

Frame J
J51B

175 100
i]
125
150 40 ps
4 95
80 a r [4 ]
0b psi
Flow (US gal/min)

125 31 37
70 100
b ar [
30
Flow (l/min)
260
Power (kW)
60
Power (hp)
100
75
75 20 si]
0 30 p
40 bar [2 50
140
50
10
25 20 25
0 0
0 500 1000 1500 2000 2500 3000 3500 0 0
-1 0 500 1000 1500 2000 2500 3000 3500
Speed min (rpm) P104 209E -1
Efficiency Noise
100 90
95
85
90 low
r - No F
85 310 ba
Efficiency (%)
Overall Efficiency 80
Noise (DBA)
80 ge w
ratin
g Ran - Full Flo
ra l Ope 140 bar
75 75 Gene
70
70
65
60
65
55
50 60
0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000
Input Speed (rpm)
Input Speed (rpm) P108 429E

1.6
shows allowable inlet 8
1.5
(psi gauge)
pressure and speed at

1.4 6
2
at reduced displacement. 1.1
Operating outside of 1.0 0
(in Hg vac)
acceptable limits reduces 0.9 3

pump life. 0.8 6
0.7 9
0.6
2200 2400 2600 2800 3000 3200 3400 3600
-1
52 520L0519 • Rev GC • January 2011

Frame J
J60B

200 120 160
50
175 5p
si] 140
100 [44
9
bar
Flow (US gal/min)

150 40 310 ps i]
120
[3 770
bar
Flow (l/min)
80 260
Power (kW)
Power (hp)
125 100
30
100 60 80
]
0 psi
75 20 a r [203 60
40 140 b
50 40
10
25 20
20
0 0 0 0
0 500 1000 1500 2000 2500 3000 3500 0 500 1000 1500 2000 2500 3000 3500
-1
Speed min (rpm) P104 212E Speed min (rpm)
-1
P104 211E
Efficiency Noise
100 90
95
90 85
low
r - No F
85 310 ba
80
Noise (DBA)
Efficiency (%)
Overall Efficiency
80 w
- Full Flo
75 e 140 bar
75 a ng
gR
70 tin
era
Op
70 e ral
65 G en
60
65
55
50 60
0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000
Input Speed (rpm) P108 431E Input Speed (rpm) P108 432

1.6
1.5
(psi gauge)

1.4 6
2
(in Hg vac)

pump life. 0.8 6
0.7 9
0.6
2200 2400 2600 2800 3000 3200 3400
-1
520L0519 • Rev GC • January 2011 53

Frame J
J65C

175 45 100
40 120
150
]
80 psi
35 770
125 r [3 100
Flow (US gal/min)

a
0b
30 26 psi]
Flow (l/min)
5
304
Power (kW)
60 80
Power (hp)
[
100 bar
25 210
75 20 psi] 60
030
40 bar [2
140
15
50 40
10
20
25 20
5
0 0 0 0
0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000
-1
Speed min (rpm) P104 215E Speed min (rpm) -1
P104 214E
Efficiency Noise
100 90
95
85
90
low
Overall Efficiency r - No F
85 260 ba
Efficiency (%)
80
Noise (DBA)
80
75 75 e
ang w
gR - Full Flo
70 a tin 140 bar
O per
70
ne ral
65 Ge
60 65
55
50 60
0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000

1.6
1.5
(psi gauge)

1.4 6
2
(in Hg vac)

pump life. 0.8 6
0.7 9
0.6
2200 2400 2600 2800 3000 3200
-1
54 520L0519 • Rev GC • January 2011

Frame J
J75C

200
50 100
si]
120
160 0p
80 77
40 a r [3
Flow (US gal/min)

0b 100
26 si]
5p
Flow (l/min)
304
120 b ar [
Power (kW)
30 60
Power (hp)
210 80
i]
03 0 ps
80 b ar [2 60
20 40 140
40
40 10 20
20
0 0
0 500 1000 1500 2000 2500 0 0
-1 0 500 1000 1500 2000 2500
Speed min (rpm) P104 218E -1
Efficiency Noise
100 90
Volumetric Efficiency
95
90 85
w
- Full Flo
Overall Efficiency 140 bar
85
Efficiency (%)
80
Noise (DBA)
80
Flow
260 bar - No
75 75
e
70 ng
Ra
70 g
65 a tin
er
Op
60 r al
65 ne
55 Ge
50 60
0 500 1000 1500 2000 2500 0 500 1000 1500 2000 2500 3000

1.6
1.5
(psi gauge)

1.4 6
2
(in Hg vac)

pump life. 0.8 6
0.7 9
0.6
2000 2200 2400 2600 2800 3000 3200
-1
520L0519 • Rev GC • January 2011 55

Frame J
Pressure Compensated Schematic

Controls
Response/Recovery Times*
(ms) Response Recovery
J45B 33 140 B
J51B 33 150
J60B 39 170 M1
J65B 45 140
J75B 45 150
PC Setting range L2
Model PC BC
J45B 100-280 bar 290-310 bar S L1 P104 220
[1450-4060 psi] [4205-4495 psi]
J51B 100-280 bar 290-310 bar Legend
[1450-4060 psi] [4205-4495 psi]
B = Outlet
J60B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
S = Inlet
J65C 100-260 bar N/A L1, L2 = Case drain
[1450-3770 bar] M1* = System pressure gauge port
J75C 100-260 bar N/A * M1 port is available on axially ported endcaps
[1450-3770 bar] only
Remote Pressure Remote Pressure Compensated Controls Schematic

Compensated Controls X
Response/Recovery Times*
(ms) Response Recovery
J45B 33 140 X
J51B 33 150
J60B 39 170
J65B 45 140 B
J75B 45 150
M1
PC Setting Range
Model RP BP
J45B 100-280 bar 290-310 bar L2
[1450-4060 psi] [4205-4495 psi]
S L1 P104 221
J51B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
Legend
J60B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
B = Outlet
J65C 100-260 bar N/A S = Inlet
[1450-3770 bar] L1, L2 = Case drain
J75C 100-260 bar N/A X = Remote PC port
* M1 port is available on axially ported endcaps
LS Setting range only
Model bar psi
All 10-40 145-580
56 520L0519 • Rev GC • January 2011

Frame J
Load sensing/Pressure Response/Recovery Times* Schematic

X
compensated Controls (ms) Response Recovery
J45B 28 111
J51B 30 125 X
J60B 33 140
J65B 43 101
J75B 45 140 B
M1
PC control setting range

Code LS BS
J45B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi] L2
J51B 100-280 bar 290-310 bar
S L1
[1450-4060 psi] [4205-4495 psi] P104 223
Legend
J60B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
B = Outlet
J65C, 100-260 bar N/A S = Inlet
J75C 100-260 bar N/A X = LS signal port
* M1 port is available on axially ported endcaps
LS setting range only
Model bar psi
All 10-40 145–580
Load sensing Control Response/Recovery Times* LSBSchematic

X
with Bleed Orifice/ (ms) Response Recovery
Pressure Compensated J45B 28 111
J51B 30 125 X
J60B 33 140
J65B 43 101
J75B 45 140 B
M1
Code LB BB
J45B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi] L2
J51B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi] S L1 P104 222
J60B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
Legend
J65C, 100-260 bar N/A B = Outlet
[1450-3770 bar] S = Inlet
J75C 100-260 bar N/A L1, L2 = Case drain
[1450-3770 bar] X = LS signal port
M1* = System pressure gauge port
LS setting range * M1 port is available on axially ported endcaps
Model bar psi only
All 10-40 145–580
520L0519 • Rev GC • January 2011 57

Frame J
Electric Controls Connectors
Description Quantity Ordering Number

Mating Connector 1 Deutsch® DT06-2S
Wedge Lock 1 Deutsch® W25
1 2
Socket Contact (16 and 18 AWG) 2 Deutsch® 0462-201-16141
Sauer-Danfoss mating connector kit 1 K29657
P003 480
Continuous Duty Operating Range

120
Percent of Rated Voltage (%)
110
Operating Range
100
90
80
70
60
50
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Ambient Temperature (°C)
P108 415E
Normally Closed on/ Response/Recovery Times* Schematic

off Electric Pressure (ms) Response Recovery
Compensated Controls J45B 33 140
J51B 33 150
J60B 39 170
J65B 45 140
B
J75B 45 150
M1

Code AG, AR, AY, CR BE, BR, BG, DR
J45B 100-280 bar 290-310 bar L2
[1450-4060 psi] [4205-4495 psi]
S L1 P106 656E
J51B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
Legend
J60B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
B = Outlet
J75C 100-260 bar N/A M1* = System pressure gauge port
[1450-3770 bar] * M1 port is available on axially ported endcaps
only
LS setting range
Model bar psi
All 10-40 145-580
58 520L0519 • Rev GC • January 2011

Frame J
Normally Open on/ Response/Recovery Times* Schematic

off Electric Pressure (ms) Response Recovery
Compensated Controls J45B 33 140
J51B 33 150
J60B 39 170
J65B 45 140
B
J75B 45 150
M1

Code AF, AN BF, BN
J45B 100-280 bar 290-310 bar L2
[1450-4060 psi] [4205-4495 psi]
S L1 P106 656E
J51B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
Legend
J60B 100-280 bar 290-310 bar
[1450-4060 psi] [4205-4495 psi]
B = Outlet
J75C 100-260 bar N/A M1* = System pressure gauge port
[1450-3770 bar] * M1 port is available on axially ported endcaps
only
LS setting range
Model bar psi
All 10-40 145-580
Normally Closed Electric Response/Recovery Times* Schematic

on/off with Load Sensing (ms) Response Recovery
Pressure Compensated J45B 29 127
Controls J51B 29 134 X
J60B 31 152
J65B 41 116
B
J75B 36 129
M1

Code FA, FB
J45B 100-280 bar L2
[1450-4060 psi]
S L1 P106 657E
J51B 100-280 bar
[1450-4060 psi]
J60B 100-280 bar
[1450-4060 psi]
Legend
J65C, 100-260 bar B = Outlet
[1450-3770 bar] S = Inlet
J75C 100-260 bar L1, L2 = Case drain
[1450-3770 bar] X = LS signal port
M1* = System pressure gauge port
LS setting range * M1 port is available on axially ported endcaps
Model bar psi only
All 10-40 145-580
520L0519 • Rev GC • January 2011 59

Frame J
Input shafts
Maximum torque rating¹

Code Description N•m [lbf•in] Drawing
C2 13 tooth spline 288 [2546] 13 TOOTH
16/32 pitch 16/32 PITCH
30° PRESSURE ANGLE
(ANSI A92.1 1970 - Class 5) 20.638 [0.813] PITCH DIA
FILLET ROOT SIDE FIT
COMPATIBLE WITH ANSI B92.1-1970
For use with SAE-B CLASS 5 ALSO MATES WITH
FLAT ROOT SIDE FIT
Ø18.63 MAX Ø21.72 ± 0.09

[0.733] [0.855 ±0.004]
15.2 ± 0.5
[0.6 ±0.02]
8± 0.8
[0.31 ±0.03]
33
[1.3]
COUPLING MUST NOT P104 224E

PROTRUDE BEYOND
THIS POINT
C3 15 tooth spline 404 [3575] 15 TOOTH

16/32 pitch 16/32 PITCH
30° PRESSURE ANGLE
(ANSI A92.1 1970 - Class 5) 23.813 [0.938] PITCH DIA
COMPATIBLE WITH ANSI B92.1-1970
For use with SAE-B CLASS 5 ALSO MATES WITH
FLAT ROOT SIDE FIT
Ø21.96 MAX 25.27 ± 0.13

[0.864] [0.995 ±0.005]
22.36 ± 0.5
[0.88 ±0.02]
8± 0.8
[0.31 ±0.03]
38
[1.5]
P104 225E
COUPLING MUST NOT
PROTRUDE BEYOND
THIS POINT
1. See Input shaft torque ratings, page 18 for an explanation of maximum torque.
60 520L0519 • Rev GC • January 2011

Frame J
input shafts
(continued)

S1 14 tooth spline 734 [6495] 47.6
14 TOOTH 12/24 PITCH
12/24 pitch [1.87]
30° PRESSURE ANGLE
(ANSI A92.1 1970 - Class 5) 29.634 [1.167] PITCH
COMPATIBLE WITH
ANSI B92.1-1970 CLASS 5
Ø25.5 MAX
ALSO MATES WITH
[1]
FLAT ROOT SIDE FIT
Ø31.14 ± 0.08
[1.226 ±0.003]
28 ± 0.5
[1.1 ±0.02]
COUPLING MUST NOT

PROTRUDE BETOND P104 226E
THIS POINT
8± 0.8
[0.31 ±0.03]
K4 Ø 31.75 mm [1.25 in] 655 [5797] 56

straight key [2.2]
7.94 [0.313]
48.03±0.43 X 28.56 [1.125] LONG
[1.89]±0.02 SQUARE KEY
35.2 ± 0.13
[1.39 ±0.01]
Ø31.72 ± 0.025 27.9 max.

[1.249 ±0.001]
19 min.
3.8 max.
COUPLING MUST NOT

PROTRUDE BETOND 5/16-18 thd
THIS POINT Dia. 11.18
8± 0.8 P104 227E

[0.31 ±0.03]
520L0519 • Rev GC • January 2011 61

Frame J
input shafts
(continued)

TO Ø 31.75 mm [1.25 in] 734 [6495] 30.96±0.25
1:8 taper +0.8 [1.219]±0.01
42.92 -1.1
[1.69] +.03
-0.04
7.887 +0.025
-0
[0.3105] +0.001
-0
X Dia. 31.8 +0- 0.010
[1.25] +0 -0.25
WOODRUFF KEY
1.00-20 UNF-2A THD
Ø30.1625
22.4 ± 0.3 [1.19]
[0.88 ±0.01] GAUGE
GAUGE
125 TAPER PER METER

COMPATIBLE WITH SAE J501
31.8 [1.25] NOMINAL SHAFT DIAMETER
COUPLING MUST NOT

PROTRUDE BEYOND
THIS POINT
P104 228E
8± 0.8
[0.31 ±0.03]
62 520L0519 • Rev GC • January 2011

Frame J
Installation drawings Axial Ported Endcap
Ø50.8 [2]
OUTLET
SYSTEM PORT S
SYSTEM PORTS (INLET PORT)
(INLET PORT) 207 bar
ISO 11926-1 3000 PSI
SAE J1926/1 77.77 SPLIT FLANGE BOSS
1 7/8 -12 52.37 [3.062] PER ISO 6162
[2.062] SAE J518
(CODE 61)
Ø25.4 [1] with 1/2-13 UNC
SYSTEM PORT B OUTLET X 23 [0.906] MIN THREAD
(OUTLET PORT) SYSTEM PORT B
ISO 11926-1 (OUTLET PORT)
SAE J1926/1 345 bar
1 5/16 -12 5000 PSI
SPLIT FLANGE BOSS 26.19 42.88
PER ISO 6162 [1.031] [1.688]
44.5 36.2 44.5 36.2
SAE J518
[1.8] [1.43] [1.75] [1.43]
(CODE 61)
with 3/8-16 UNC
O-Ring Boss Ports X 18.61 [0.732] MIN THREAD Split Flange Ports P104 437E
Axial Ported Endcap Installation Dimensions

APPROXIMATE
262.3 CENTER OF 0.9
[10.33] GRAVITY [0.04]
11.2
246.3 [0.4]
[9.7]
BOTH SIDES
LS SIGNAL PORT X
ISO 11926-1
SAE J1926/1
7/16 -20
28.9 83.4
[1.14] [3.28]
BOTH
SIDES
146
47 [5.75]
77.2
73.2 [1.85] 73 [3.04]
[2.88] [2.87]
82.1
SYSTEM PRESSURE [3.2]
Ø14.4
GAUGE PORT M1 [0.567]
ISO 11926-1 CASE DRAIN PORT L1
ISO 11926-1 2X
SAE J1926/1
9/16 -18 SAE J1976/1
7/8 -14
LS STANDBY
113.6
PRESSURE 92.7
[4.5]
ADJUSTMENT [3.65]
APPROXIMATE
CENTER OF 15 PC PRESSURE LS SIGNAL
GRAVITY [0.59] ADJUSTMENT PORT X
R1 MAX
[0.04]
96.7
CASE DRAIN 82.4 [3.81]
PORT L1 [3.24]
SPOTFACE
DEPTH
Ø101.58 ± 0.025
[3.999 ±0.001]
53.3
CASE DRAIN 77.5 [2.1]
PORT L2 [3.05] LS SIGNAL
SPOTFACE PORT X
DEPTH ALTERNATE
Third-angle 9.4 P106 172E

projection [0.37]
mm [in] 198.8
[7.83]
520L0519 • Rev GC • January 2011 63

Frame J
Installation drawings Radial Ported Endcap Split Flange Ports

(continued) 239.8
[9.44]
LS SIGNAL PORT X
200.4
LS STANDBY [7.89]
PRESSURE
ADJUSTMENT LS SIGNAL PORT X
ALTERNATE
PC PRESSURE
ADJUSTMENT
CASE DRAIN
PORT L1 82.4
SPOTFACE [3.24]
DEPTH
52.37
[2.062]
CASE DRAIN
PORT L2 77.5
SPOTFACE [3.05]
DEPTH
Ø50.8 [2]
INLET Ø25.4 [1]
SYSTEM PORT B 26.19
SYSTEM PORT S [1.031]
(INLET PORT) (OUTLET PORT)
207 BAR [3000 PSI} 345 BAR [5000 PSI] SPLIT FLANGE
194.6
SPLIT FLANGE PER ISO 6162
[7.66] SAE J518 (CODE 61)
PER ISO 6162
SAE J518 with 3/8-16 UNC X 22 [0.866]
(CODE 61) MINIMUM THREAD DEPTH
with 1/2-13 UNC 188.84
X 27 [1.063] MIN THREAD DEPTH [7.43] P108 438E
Radial Ported Endcap Rear View
* Interference with internal components will occur

if fitting depth in port X is greater than 11.8 mm [0.465 in]
99.4
[3.9]
44.9
* LS SIGNAL PORT X [1.77]
SAE J1926/1 BOTH
0.4375-20 SIDES
116.5 BOTH
[4.59] SIDES
132
[5.2]
SYSTEM SYSTEM SYSTEM SYSTEM

PORT B PORT S PORT S PORT B
OUTLET INLET INLET OUTLET
84 76.2
76.2 84 [3.31] [3]
[3] [3.31]
Left Hand Rotation (CCW) Right Hand Rotation (CCW) P108 438E
64 520L0519 • Rev GC • January 2011

Frame J
Installation drawings Radiall Ported Endcap Installation Dimensions

(continued) APPROXIMATE
CENTER OF 0.9
GRAVITY [0.04]
11.2
[0.4]
47
[1.85] 146
[5.75]
77.2
73 [3.04]
[2.87]
82.1
[3.23]
CASE DRAIN PORT L1
PER ISO 11976-1
SAE J 1976/1 Ø14.4
7/8-14 [0.567]
2X
239.8
[9.44]
LS SIGNAL PORT X
APPROXIMATE
200.4 CENTER OF
LS STANDBY [7.89] 128.8 GRAVITY
PRESSURE [5.1]
ADJUSTMENT LS SIGNAL PORT X
ALTERNATE 15
PC PRESSURE [0.59]
ADJUSTMENT
R1 MAX
[0.04]
CASE DRAIN 96.7

PORT L1 82.4 [3.8]
SPOTFACE [3.24]
DEPTH
Ø101.58 ± 0.025 52.37
[3.999 ±0.001] [2.062]
CASE DRAIN
PORT L2 77.5
SPOTFACE [3.05]
DEPTH
Ø50.8 [2]
INLET Ø25.4 [1]
SYSTEM PORT B 26.19
SYSTEM PORT S 9.4 [1.031]
(INLET PORT) [0.37] (OUTLET PORT)
207 BAR [3000 PSI} 345 BAR [5000 PSI] SPLIT FLANGE
194.6 PER ISO 6162
SPLIT FLANGE [7.66] SAE J518 (CODE 61)
PER ISO 6162
with 3/8-16 UNC X 22 [0.866]
SAE J518 242.4
(CODE 61) MINIMUM THREAD DEPTH
[9.54]
with 1/2-13 UNC 188.84
[7.43] P106 173E
X 27 [1.063] MIN THREAD DEPTH
520L0519 • Rev GC • January 2011 65

Frame J
Installation drawings Front Mounting Flange

(continued)
Ø14.4
[0.567]
X4
57.25
[2.25]
2X 114.5
[4.51]
2X
SAE-C 4 Bolt
Ø17.5
[0.69]
2X
90.5
[3.56]
181
[7.13]
SAE-C 2 Bolt
APPROXIMATE
CENTER OF 0.9
GRAVITY [0.04]
11.2
[0.4]
146
[5.75]
77.2
73 [3.04]
[2.87]
Ø14.4
[0.567]
2X
SAE-B 2 Bolt P108 440E
Third-angle
projection
mm [in]
66 520L0519 • Rev GC • January 2011

Frame J
Auxiliary mounting pads SAE-A auxiliary mounting pad (integrated)

Dimensions
O-RING SEAL REQUIRED x
REF 82.22 [3.23] I.D
3.1 2.62 [0.103] CROSS SECTION
[0.12] P/N 5000373 240.1
Ø88.62 [9.45]
APPROXIMATE
CENTER OF [3.49] 128.5
GRAVITY [5.1]
MOUNTING
FLANGE
APPROXIMATE
10.4 CENTER OF
[0.41] GRAVITY
R1.3 MAX
Ø82.6 +0.08
-0
3/8 -16 UNC-2B THD. [3.25 +0.003

-0 ]
17.8 [0.70] MIN
53.2 FULL THD. DEPTH 8.1
[2.09] 2X [0.32] A COUPLING-SAE A P108 487E
106.4 SPLINE:
[4.19] M10 x 1.5-6H THD. Coupling 11.1±0.6 9 TOOTH
19 [0.75] MIN. 16/32 PITCH
FULL THD. DEPTH clearance [0.44]±0.5
30° PRESSURE ANGLE
2X 14.288 [0.5625] PITCH DIA
Shaft 35.1±0.6 PER ANSI B92.1-1970 CLASS 6
clearance [1.38]±0.024 T COUPLING-SAE A
SPLINE:
Specifications 11 TOOTH
16/32 PITCH
Coupling 9-tooth 11-tooth 30° PRESSURE ANGLE
17.463 [0.6875] PITCH DIA
Spline minimum 13.5 mm [0.53 in] 15 mm [0.59 in] FILLET ROOT SIDE FIT
PER ANSI B92.1-1970 CLASS 6
engagement
Maximum torque 107 N•m [950 lbf•in] 147 N•m [1300 lbf•in]
SAE-A auxiliary mounting pad (non-integral)

Dimensions
264.43
[10.41]
3 23 137.1
[0.12] APPROXIMATE [0.91] [5.4]
CENTER OF
GRAVIT Y APPROXIMATE MOUNTING
CENTER OF FLANGE
GRAVIT Y
3/8 -16 UNC-2B THD

17.8 [0.70] MIN
FULL THD DEPTH
2X
9.8
[0.39] R1.2 MAX
Ø82.6 +0.08
-0
Ø88.62 [3.25 +0.003

-0 ]
[3.49]
1.95
53.2 [0.08] P104 230E
[2.09] O-RING SEAL REQUIRED
REF 82.22 [3.23] I.D x 8.1
106.4 2.62 [0.103] CROSS SECTION [0.32] A COUPLING-SAE A
[4.19] SPLINE:
P/N 5000373
59.4 9 TOOTH
[2.34] 16/32 PITCH
30° PRESSURE ANGLE
Specifications 14.288 [0.5625] PITCH DIA
Coupling 9-tooth 11-tooth PER ANSI B92.1-1970 CLASS 6
T COUPLING-SAE A
Spline minimum 13.5 mm [0.53 in] 15 mm [0.59 in] SPLINE:
engagement 11 TOOTH
16/32 PITCH
Maximum torque 107 N•m [950 lbf•in] 147 N•m [1300 lbf•in] 30° PRESSURE ANGLE
17.463 [0.6875] PITCH DIA
520L0519 • Rev GC • January 2011 67

Frame J
SAE-B auxiliary mounting pad

Dimensions 260.05
3.1
[0.122] [10.24]
APPROXIMATE 136.1
1/2 -13UNC-2B THD CENTER OF 22 [5.4]
19.7 [0.76] MIN GRAVIT Y [0.87]
THD DEPTH MOUNTING
2X APPROXIMATE FLANGE
CENTER OF
GRAVIT Y
Ø105.64
[4.159]
9.8
[0.39] R2.0 MAX
[0.08]
Ø101.65 +0.08
-0
[4.002 +.003
-0 ]
73 O-RING SEAL REQUIRED B COUPLING-SAE B P104 231E

[2.87] REF 96.24 [3.789] I.D X SPLINE:
1.78 [0.070] CROSS SECTION 13 TOOTH
146 P/N 9004104-0440 16/32 PITCH
[5.75] 1.3 30° PRESSURE ANGLE
[0.05] 20.638 [0.8125] PITCH DIA
Specifications 11 ± 0.12 PER ANSI B92.1-1970 CLASS 6
[0.433 ±0.005]
Coupling 13-tooth 15-tooth V COUPLING-SAE B-B
SPLINE:
Spline minimum 14.2 mm [0.56 in] 18.9 mm [0.74 in] 55 15 TOOTH
[2.17] 16/32 PITCH
engagement 30° PRESSURE ANGLE
MIN SHAFT 23.813 [0.9375] PITCH DIA
Maximum torque 249 N•m [2200 lbf•in] 339 N•m [3000 lbf•in] CLEARANCE FILLET ROOT SIDE FIT
68 520L0519 • Rev GC • January 2011

Frame J
Auxiliary mounting pads SAE-C auxiliary mounting pad

(continued) Dimensions 263.05
2.9 [10.36]
APPROXIMATE 11.3 138.95
[0.114] CENTER OF [0.44] [5.5]
1/2 -13 UNC-2B THD GRAVIT Y
22.7 [0.89] MIN
THREAD DEPTH APPROXIMATE MOUNTING
4X CENTER OF FLANGE
GRAVIT Y
9.7
57.3 [0.38]
[2.26]
Ø127.03 +0.05
-0
114.6 [5.001+.002
-0 ]
[4.51]
Ø131.57
[5.18]
1.3
O-RING SEAL REQUIRED [0.05]
57.3 REF 126.72 [4.989] I.D. x C COUPLING-SAE C P104 232E
[2.26] 1.78 [0.070] CROSS SECTION 14 SPLINE:
P/N 331256 [0.55] 14 TOOTH
114.6 12/24 PITCH
[4.51] 58.0 30° PRESSURE ANGLE
[2.28] 29.633 [1.1667] PITCH DIA
MIN SHAFT PER ANSI B92.1-1970 CLASS 6
CLEARANCE
Specifications
Coupling 14-tooth
Spline minimum 18.3 mm [0.72 in]
engagement
Maximum torque 339 N•m [3000 lbf•in]
Running cover 250.56

[9.86]
MOUNTING
FLANGE
P104 233E
520L0519 • Rev GC • January 2011 69

Frame J
Installation drawings Radial Endcap Clockwise 287.3

99.4 60.92 [11.31]
(continued) [3.91] [2.4]
139.84
[5.51]
20°
P108 441E
Radial Endcap Counterclockwise 287.3

60.92 99.4 [11.31]
[2.4] [3.91]
139.84
[5.51]
20°
P106 191E
Axial Endcap Clockwise
269.0
83.4 76.9 [10.62]
[3.28] [3.03]
20°
141
141.0 [5.55]
[5.55]
P106 191E
Axial Endcap Counterclockwise

269.0
76.9 83.4 [10.62]
[3.03] [3.28]
20°
141.0
[5.55]
Third-angle
projection
mm [in] P106 191E
70 520L0519 • Rev GC • January 2011

Frame J
Displacement limiter
J Frame open circuit pumps are Displacement limiter cross-section
available with an optional adjustable
displacement limiter. This adjustable
stop limits the pump’s maximum
displacement.
Setting range
J45B 8.4 to 45 cm³ [0.51 to 2.75 in³]
J51B 13.7 to 51 cm³ [0.84 to 3.11 in³]
J60B 16.8 to 60 cm³ [1.03 to 3.66 in³]
J65B 25.4 to 65 cm³ [1.55 to 3.97 in³] P106 727E
J75B 28.4 to 75 cm³ [1.73 to 4.58 in³]
Displacement per turn

J45B 6.2 cm³/rev [0.38 in³/rev]
J51B 6.2 cm³/rev [0.38 in³/rev]
J60B 6.2 cm³/rev [0.38 in³/rev]
J65B 7.2 cm³/rev [0.44 in³/rev]
J75B 7.2 cm³/rev [0.44 in³/rev]
Displacement limiters are only available for endcap options V and W.
241.65
[9.5] 207.12
[8.2]
167.72
[6.6]
162.54
[6.4]
146.5
[5.8]
Third-angle
P106 728E projection
mm [in]
520L0519 • Rev GC • January 2011 71

Notes
520L0519 • Rev GC • January 2011 115

Products we offer: Sauer-Danfoss is a global manufacturer and supplier of high-
quality hydraulic and electronic components. We specialize in
• Bent Axis Motors providing state-of-the-art technology and solutions that excel in
the harsh operating conditions of the mobile off-highway market.
• Closed Circuit Axial Piston Pumps
Building on our extensive applications expertise, we work closely
and Motors
with our customers to ensure exceptional performance for a broad
• Displays range of off-highway vehicles.
• Electrohydraulic Power Steering
We help OEMs around the world speed up system development,
• Electrohydraulics reduce costs and bring vehicles to market faster.
Sauer-Danfoss – Your Strongest Partner in Mobile Hydraulics.
• Hydraulic Power Steering
• Integrated Systems
• Joysticks and Control Handles
Go to www.sauer-danfoss.com for further product information.
• Microcontrollers and Software
• Open Circuit Axial Piston Pumps
• Orbital Motors Wherever off-highway vehicles are at work, so is Sauer-Danfoss.
• PLUS+1™ GUIDE
We offer expert worldwide support for our customers, ensuring
• Proportional Valves the best possible solutions for outstanding performance. And with
an extensive network of Global Service Partners, we also provide
• Sensors
comprehensive global service for all of our components.
• Steering
• Transit Mixer Drives
Please contact the Sauer-Danfoss representative nearest you.
Local address:
Members of the Sauer-Danfoss Group:
Comatrol
www.comatrol.com
Schwarzmüller-Inverter
www.schwarzmueller-inverter.com
Sauer-Danfoss (US) Company Sauer-Danfoss ApS
2800 East 13th Street DK-6430 Nordborg, Denmark
Ames, IA 50010, USA Phone: +45 7488 4444
Turolla
Phone: +1 515 239 6000 Fax: +45 7488 4400
www.turollaocg.com Fax: +1 515 239 6618
Hydro-Gear Sauer-Danfoss GmbH & Co. OHG Sauer-Danfoss-Daikin LTD.

www.hydro-gear.com Postfach 2460, D-24531 Neumünster Shin-Osaka TERASAKI 3rd Bldg. 6F
Krokamp 35, D-24539 Neumünster, Germany 1-5-28 Nishimiyahara, Yodogawa-ku
Phone: +49 4321 871 0 Osaka 532-0004, Japan
Sauer-Danfoss-Daikin Fax: +49 4321 871 122 Phone: +81 6 6395 6066
Fax: +81 6 6395 8585
www.sauer-danfoss-daikin.com
520L0519 • Rev GC • January 2011

www.sauer-danfoss.com

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Series 45

History of Revisions Table of Revisions

© 2011 Sauer-Danfoss. All rights reserved.

2 520L0519 • Rev GC • January 2011

General information Overview............................................................................................................................................................ 5

Frames L and K Design...............................................................................................................................................................21

520L0519 • Rev GC • January 2011 3

4 520L0519 • Rev GC • January 2011

Design High Performance

520L0519 • Rev GC • January 2011 5

Benefits Reduced Installation Costs

Reduce Operating Costs

Increased Customer Satisfaction

Reduced Heat Load on Cooling System

Typical applications • Cranes • Paving Machines

6 520L0519 • Rev GC • January 2011

The Series 45 product Basic units

K/L Frame J Frame F Frame E Frame

General performance specifications for the series 45 pump family

520L0519 • Rev GC • January 2011 7

Pictorial circuit diagram

8 520L0519 • Rev GC • January 2011

Pressure compensated Operation

Typical operating curve Simple closed-center circuit

Once the closed center valve is opened,

Pressure compensated system characteristics

Typical applications for pressure compensated systems

520L0519 • Rev GC • January 2011 9

Typical operating curve Closed center circuit with remote PC

Remote pressure compensated system characteristics

Typical applications for remote pressure compensated systems

10 520L0519 • Rev GC • January 2011

Load sensing controls Operation

Typical operating curve Load sensing circuit

LS control with bleed orifice

Load sensing system characteristics

520L0519 • Rev GC • January 2011 11

Electric Control (frames K and L)

Electric Control (frames E, F, and J)

12 520L0519 • Rev GC • January 2011

Operating parameters Fluids

Viscosity Fluid viscosity limits

Ensure fluid temperature and viscosity limits are concurrently satisfied.

Inlet pressure Inlet pressure limits

Case pressure Case pressure limits

520L0519 • Rev GC • January 2011 13

Operating parameters Pressure ratings

Maximum working pressure is the highest, regularly occurring operating pressure.

Maximum speed is the highest recommended operating speed at full power

Duty cycle and pump life

Speed, flow, and inlet pressure

given displacement. Operating at lower 0.9 3

Operating limit at 80% displacement

14 520L0519 • Rev GC • January 2011

Design parameters Installation

520L0519 • Rev GC • January 2011 15

Design parameters Fluid velocity Recommended fluid velocities

Velocity equations SI units US units

Q = flow (l/min) Q = flow (US gal/min)