Series 90 Axial
Piston Motors
Technical
Information
2
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Revisions
Table of Revisions
Date Page Changed Rev.
September 2008 26 ange to shaft length dimension should be [5.15 ±0.001] DB
April 2007 18 Remove allowable shaft loading data - consult factory DA
March 2004 - Fourth edition D
HISTORY OF REVISIONS
© 2008 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 ordered provided that such alterations aren’t in conict with agreed specications. All trademarks in
this material are properties of their respective owners. Sauer-Danfoss and the Sauer-Danfoss logotype are
trademarks of the Sauer-Danfoss Group.
Front cover illustrations: F101 147, F101 434, P101 867
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Contents
GENERAL DESCRIPTION Series 90 family of pumps and motors ...................................................................................................5
Fixed displacement motor ..........................................................................................................................6
Cross section ....................................................................................................................................6
Name plate .......................................................................................................................................6
Variable displacement motor .....................................................................................................................7
Cross section ....................................................................................................................................7
Name plate .......................................................................................................................................7
Fixed displacement motor, cartridge mount ........................................................................................8
Cross section ....................................................................................................................................8
Name plate ....................................................................................................................................... 8
Pictorial circuit diagram ...............................................................................................................................9
System schematic ...........................................................................................................................................9
TECHNICAL
SPECIFICATIONS
Overview .........................................................................................................................................................10
Features and options ..................................................................................................................................10
Specications .................................................................................................................................................10
Operating parameters ................................................................................................................................11
Fluid specications ......................................................................................................................................11
Efciency graphs ..........................................................................................................................................12
Motor performance as a function of operating speed .............................................................12
Efciency vs. speed ......................................................................................................................12
Motor performance as a function of pressure and speed ........................................................12
Efciency plotted at various pressures and speeds ........................................................12
OPERATING
PARAMETERS
Speed limits ....................................................................................................................................................13
System pressure ............................................................................................................................................13
Case pressure .................................................................................................................................................13
Hydraulic Fluids .............................................................................................................................................14
Temperature and viscosity ........................................................................................................................14
SYSTEM DESIGN
PARAMETERS
Fluid and ltration ........................................................................................................................................15
Independent braking system ...................................................................................................................15
Reservoir ..........................................................................................................................................................15
Overpressure protection ...........................................................................................................................16
Case drain ........................................................................................................................................................16
Sizing equations ...........................................................................................................................................17
Variables ...............................................................................................................................................17
External shaft loading and bearing life ................................................................................................18
Shaft loading .................................................................................................................................18
Shaft loading parameters .........................................................................................................18
External shaft load orientation ...............................................................................................18
Allowable shaft loading .............................................................................................................18
FEATURES AND OPTIONS Two-position hydraulic control (PT) ......................................................................................................19
Control schematic diagram ......................................................................................................19
Legend ..................................................................................................................................................19
Two-position electrohydraulic displacement control (NA, NB, NC, ND) ....................................19
Coil and connector options .................................................................................................................19
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Contents
Loop ushing .................................................................................................................................................20
Recommended charge pump displacement .....................................................................20
Equation ...............................................................................................................................................20
Where ....................................................................................................................................................20
Schematic diagram of loop ushing valve .........................................................................20
Loop ushing ow curves .........................................................................................................20
Loop ushing valve cross section ..........................................................................................20
Speed sensor ..................................................................................................................................................21
Speed Sensor .................................................................................................................................21
Specications ................................................................................................................................21
Pulse frequency ............................................................................................................................21
Speed sensor with Turck® Eurofast connector ..................................................................21
Speed sensor with Packard® Weather-Pack connector ..................................................21
Shaft options ..................................................................................................................................................22
Series 90 shaft options ...............................................................................................................22
Displacement limiters (055MV only) .....................................................................................................23
Displacement limiter adjustment screws ............................................................................23
FEATURES AND OPTIONS
(continued)
INSTALLATION
DRAWINGS
90M42 xed motor SAE Mount ...............................................................................................................24
Splined output shaft options...................................................................................................25
Flow direction ...............................................................................................................................25
90K55 xed motor cartridge mount ......................................................................................................26
Splined output shaft options...................................................................................................27
Flow direction ...............................................................................................................................27
90M55 xed motor SAE mount ...............................................................................................................28
Splined output shaft options...................................................................................................29
Flow direction ...............................................................................................................................29
90M55 variable motor cartridge mount ..............................................................................................30
Splined output shaft option ....................................................................................................31
Flow direction ...............................................................................................................................31
90V55 variable motor SAE mount ..........................................................................................................32
Splined output shaft option ....................................................................................................33
Flow direction ...............................................................................................................................33
90K75 xed motor cartridge mount ......................................................................................................34
Splined output shaft options...................................................................................................35
Flow direction ...............................................................................................................................35
90M75 xed motor SAE mount ...............................................................................................................36
Splined output shaft options...................................................................................................37
Flow direction ...............................................................................................................................37
90M100 xed motor SAE mount.............................................................................................................38
Splined output shaft options...................................................................................................39
Flow direction ...............................................................................................................................39
90M130 xed motor SAE mount.............................................................................................................40
Splined output shaft options...................................................................................................41
Flow direction ...............................................................................................................................41
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
General description
Series 90 hydrostatic pumps and motors can be applied together or combined with
other products in a system to transfer and control hydraulic power. They are intended for
closed circuit applications.
Series 90 variable displacement pumps are compact, high power density units. All
models utilize the parallel axial piston/slipper concept in conjunction with a tiltable
swashplate to vary the pump’s displacement. Reversing the angle of the swashplate
reverses the ow of oil from the pump and thus reverses the direction of rotation of the
motor output.
Series 90 pumps include an integral charge pump to provide system replenishing
and cooling oil ow, as well as control uid ow. They also feature a range of auxiliary
mounting pads to accept auxiliary hydraulic pumps for use in complementary hydraulic
systems. A complete family of control options is available to suit a variety of control
systems (mechanical, hydraulic, electric).
Series 90 motors also use the parallel axial piston/slipper design in conjunction with a
xed or tiltable swashplate. They can intake/discharge uid through either port; they are
bidirectional. They also include an optional loop ushing feature that provides additional
cooling and cleaning of uid in the working loop.
• Series 90 – advanced technology today
· Seven sizes of variable displacement pumps
· Five sizes of xed displacement motors
· One variable displacement motor
· SAE and cartridge mount congurations
· Efcient axial piston design
· Proven reliability and performance
· Compact, lightweight
· Worldwide sales and service
SERIES 90 FAMILY OF
PUMPS AND MOTORS
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
General description
FIXED DISPLACEMENT
MOTOR
P100 490E
Loop flushing valve
Valve plate Piston
Roller bearing
Output shaft
Fixed swashplate
Cylinder block
Cross section
Name plate
Model-No./Ident-No.
Model Code
Serial-No.
Made in USA
Place of Manufacture
Model
Number
Serial
Number
Model
Code
A - 00 - 13 - 67890
501829
P101 372E
90M100 NC 0 N 7 N 0
C7 W 00 CBA 00 00 83
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
General description
VARIABLE
DISPLACEMENT MOTOR
Cross section
Name plate
Model-No./Ident-No.
Model Code
Serial-No.
Made in USA
Place of Manufacture
Model
Number
Serial
Number
Model
Code
A - 00 - 13 - 67890
501829
P101 372E
90M100 NC 0 N 7 N 0
C7 W 00 CBA 00 00 83
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
General description
FIXED DISPLACEMENT
MOTOR, CARTRIDGE
MOUNT
Cross section
Name plate
Model-No./Ident-No.
Model Code
Serial-No.
Made in USA
Place of Manufacture
Model
Number
Serial
Number
Model
Code
A - 00 - 13 - 67890
501829
P101 372E
90M100 NC 0 N 7 N 0
C7 W 00 CBA 00 00 83
P104 253E
Charge relief valve
Loop flushing
valve
Cylinder block
Piston
Roller bearing
Output
shaft
Valve plate
Swashplate
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
General description
PICTORIAL CIRCUIT
DIAGRAM
This conguration shows a hydrostatic transmission using a Series 90 axial piston
variable displacement pump and a Series 90 xed displacement motor.
SYSTEM SCHEMATIC
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Technical specications
OVERVIEW Specications for the Series 90 motors are listed here for quick reference. For denitions
and additional information, see Operating Parameters, page 13, Features and Options,
page 19, and the Series 90 Model Code Supplement.
SPECIFICATIONS
Motor type In-line, axial piston, closed loop, positive displacement motors
Direction of rotation Bi-directional, see outline drawings for rotation vs. ow direction information
Installation position Discretionary: Housing must be lled with hydraulic uid
Other system requirements Independent braking system, overpressure protection, suitable reservoir, proper ltration
Parameter 042 MF 055 MF 055 MV 075 MF 100 MF 130 MF
Swashplate Fixed Fixed Variable Fixed Fixed Fixed
Max. displacement
cm³/rev [in³/rev]
42 [2.56] 55 [3.35] 55 [3.35] 75 [4.57] 100 [6.10] 130 [7.90]
Maximum corner power kW [hp] 155 [208] 187 [251] 187 [251] 237 [318] 292 [392] 354 [475]
Theoretical torque
N•m/bar [lbf•in/1000 psi]
0.67
[410]
0.88
[530]
0.88
[530]
1.19
[730]
1.59
[970]
2.07
[1260]
Weight
kg [lb]
SAE 15 [34] 22 [49] 39 [86] 26 [57] 34 [74] 45 [99]
Cartridge 21 [46] 26 [57] 40 [88] 33 [72] — —
Mass moment of inertia
kg•m² [slug•ft²]
0.0023 [0.0017] 0.0060 [0.0044] 0.0060 [0.0044] 0.0096 [0.0071] 0.0150 [0.0111] 0.0230 [0.0170]
Parameter 042 MF 055 MF 055 MV 075 MF 100 MF 130 MF
Types of mounting (SAE ange
size per SAE J744)
SAE B SAE C, cartridge SAE C, cartridge SAE C, cartridge SAE C SAE D
Port connections Twin Twin, axial Twin Twin, axial Twin Twin
Output shaft options Spline Spline, tapered,
straight
Spline Spline, tapered,
straight
Spline, tapered,
straight
Spline
Control options — —
Two-position electro-
hydraulic, hydraulic
— — —
Loop ushing
Speed sensor
Displacement limiters — —
— — —
Standard Optional — Not available / not applicable
FEATURES AND OPTIONS
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Technical specications
OPERATING PARAMETERS
Parameter Unit 042 MF 055 MF 055 MV 075 MF 100 MF 130 MF
Speed limits
Continuous (max. disp.)
min
-1
(rpm)
4200 3900 3900 3600 3300 3100
Maximum (max. disp.)
4600 4250 4250 3950 3650 3400
Continuous (min. disp.)
— — 4600 — — —
Maximum (min. disp.)
— — 5100 — — —
System pressure
Continuous
bar [psi]
420 [6000]
Maximum 480 [7000]
Flow ratings
Rated (max. disp., rated speed)
l/min [US gal/min]
176 [46] 215 [57] 215 [57] 270 [71] 330 [87] 403 [106]
Maximum (max. disp., max. speed) 193 [51] 234 [62] 234 [62] 296 [78] 365 [96] 442 [117]
Case pressure
Continuous
bar [psi]
3 [44]
Maximum (cold start) 5 [73]
FLUID SPECIFICATIONS
Viscosity mm²/sec (cSt) [SUS]
Minimum 7 [49]
Continuous 12-80 [70-370]
Maximum 1600 [7500]
Temperature °C [°F] (measured at the hottest point in the system, usually the case drain)
Minimum -40 [-40]
Continuous 104 [220]
Maximum 115 [240]
Filtration
Cleanliness 22/18/13 or better per ISO 4406
Efciency (suction ltration)
β
35-45
=75 (β
10
≥2)
Efciency (charge ltration)
β
15-20
=75 (β
10
≥10)
Recommended inlet screen size
100-125 µm [0.0039-0.0049 in]
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Technical specications
EFFICIENCY GRAPHS Motor performance as a function of operating speed
The following performance graph provides typical volumetric and overall efciencies for
Series 90 motors. These efciencies apply for all frame sizes.
Motor performance as a function of pressure and speed
The performance map provides typical motor overall efciencies at various pressures
and speeds. These efciencies also apply for all frame sizes.
Efficiency vs. speed
Efficiency plotted at various pressures and speeds
η
t
=
2
1
0
b
a
r
(300
0
p
s
i
)
η
v
=
2
1
0
b
a
r
(3
0
0
0
p
si)
η
v
=
4
2
0
b
a
r
(
6
0
0
0
ps
i
)
η
t
=
4
2
0
b
a
r
(6
0
0
0
p
s
i)
25
50
75
100
95
90
85
Speed (% of rated continuous speed)
Efficiency (%)
80
0
100
P104 288E
85%
90%
420
350
280
210
140
70
0
0255075 100
Speed % of rated continuous speed
bar
6000
5000
4000
3000
2000
1000
0
psi
92%
93%
P104 289E
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Operating parameters
CASE PRESSURE
SPEED LIMITS
SYSTEM PRESSURE
Maintain operating parameters within prescribed limits during all operating conditions.
This section denes operating limits given in the table Operating parameters, page 11.
Continuous speed is the highest input speed recommended at full power condition.
Operating at or below this speed should yield satisfactory product life. In a machine
propel application, maximum motor speed during unloaded, on - road travelling on level
ground should not exceed this limit.
Maximum speed is the highest operating speed permitted. Exceeding maximum speed
reduces product life and can cause loss of hydrostatic power and braking capacity. Never
exceed the maximum speed limit under any operating conditions.
Consult Pressure and speed limits, BLN-9984, when determining speed limits for a
particular application.
W Warning
Unintended vehicle or machine movement hazard.
Exceeding maximum speed may cause a loss of hydrostatic drive line power and
braking capacity. You must provide a braking system, redundant to the hydrostatic
transmission, sufcient to stop and hold the vehicle or machine in the event of
hydrostatic drive power loss.
System pressure is the differential pressure between system ports A and B. It is the
dominant operating variable affecting hydraulic unit life. High system pressure, which
results from high load, reduces system life. System pressure must remain at or below
continuous pressure during normal operation to achieve expected life.
Continuous pressure is the average, regularly occurring operating pressure. Operating
at or below this pressure should yield satisfactory product life.
Maximum pressure is the highest intermittent pressure allowed. Maximum machine
load should never exceed this pressure. For all applications, the load should move below
this pressure.
All pressure limits are differential pressures referenced to low loop (charge) pressure.
Subtract low loop pressure from gauge readings to compute the differential.
Under normal operating conditions, the maximum continuous case pressure must not
exceed 3 bar (44 psi). Maximum allowable intermittent case pressure during cold start
must not exceed 5 bar (73 psi). Size drain plumbing accordingly.
C Caution
Possible component damage or leakage
Operation with case pressure in excess of these limits may damage seals, gaskets, and/or
housings, causing external leakage. Performance may also be affected since charge and
system pressure are additive to case pressure.
OVERVIEW
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Operating parameters
HYDRAULIC FLUIDS
TEMPERATURE AND
VISCOSITY
Ratings and data are based on operating with hydraulic uids containing oxidation, rust
and foam inhibitors. These uids must possess good thermal and hydrolytic stability to
prevent wear, erosion, and corrosion of pump components. Never mix hydraulic uids of
different types.
Fire resistant uids are also suitable at modied operating conditions. Please see Sauer-
Danfoss publication 520L0463 for more information. Refer to publication 520L0465 for
information relating to biodegradable uids.
Suitable Hydraulic uids:
• Hydraulic uids per DIN 51 524, 2-HLP,
• Hydraulic uids per DIN 51 524, 3-HVLP,
• API CD, CE and CF engine uids per SAE J183,
• M2C33F or G automatic transmission uids (ATF),
• Dexron II (ATF), which meets the Allison C3- and Caterpillar TO-2 test,
• Agricultural multi purpose oil (STOU),
• Premium turbine oils.
Temperature and viscosity requirements must be concurrently satised. The data shown
in the table Fluid specifications, page 11, assume petroleum-based uids are used.
The high temperature limits apply at the hottest point in the transmission, which is
normally the motor case drain. The system should generally be run at or below the rated
temperature. The maximum temperature is based on material properties and should
never be exceeded.
Cold oil will generally not affect the durability of the transmission components, but
it may affect the ability of oil to ow and transmit power; therefore temperatures
should remain 16 °C [30 °F] above the pour point of the hydraulic uid. The minimum
temperature relates to the physical properties of component materials.
For maximum unit efciency and bearing life the uid viscosity should remain in the
recommended operating range. The minimum viscosity should be encountered
only during brief occasions of maximum ambient temperature and severe duty cycle
operation. The maximum viscosity should be encountered only at cold start.
Heat exchangers should be sized to keep the uid within these limits. Testing to verify
that these temperature limits are not exceeded is recommended.
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
System design parameters
INDEPENDENT BRAKING
SYSTEM
RESERVOIR
1
Filter β
x
-ratio is a measure of lter efciency dened by ISO 4572. It is dened as the ratio of the number of
particles greater than a given diameter (“x” in microns) upstream of the lter to the number of these particles
downstream of the lter.
FLUID AND FILTRATION To prevent premature wear, it is imperative that only clean uid enter the hydrostatic
transmission circuit. A lter capable of controlling the uid cleanliness to ISO 4406 class
22/18/13 (SAE J1165) or better under normal operating conditions is recommended.
The lter may be located either on the inlet (suction ltration) or discharge (charge
pressure ltration) side of the charge pump. The selection of a lter depends on
a number of factors including the contaminant ingression rate, the generation of
contaminants in the system, the required uid cleanliness, and the desired maintenance
interval. Filters are selected to meet the above requirements using rating parameters of
efciency and capacity.
Filter efciency may be measured with a Beta ratio
¹
(β
X
). For simple suction-ltered closed
circuit transmissions and open circuit transmissions with return line ltration,
a lter with a β-ratio within the range of β
35-45
= 75 (β
10
≥ 2) or better has been found to
be satisfactory. For some open circuit systems, and closed circuits with cylinders being
supplied from the same reservoir, a considerably higher lter efciency is recommended.
This also applies to systems with gears or clutches using a common reservoir. For these
systems, a charge pressure or return ltration system with a lter β-ratio in the range of
β
15-20
= 75 (β
10
≥ 10) or better is typically required.
Because each system is unique, only a thorough testing and evaluation program can fully
validate the ltration system. Please see Design Guidelines for Hydraulic Fluid Cleanliness,
520L0467, for more information.
W Warning
Unintended vehicle or machine movement hazard.
The loss of hydrostatic drive line power, in any mode of operation (forward, neutral, or
reverse) may cause the system to lose hydrostatic braking capacity. You must provide a
braking system, redundant to the hydrostatic transmission, sufcient to stop and hold
the vehicle or machine in the event of hydrostatic drive power loss.
The reservoir should be designed to accommodate maximum volume changes during
all system operating modes and to promote de-aeration of the uid as it passes through
the tank.
A suggested minimum total reservoir volume is 5/8 of the maximum charge pump
ow per minute with a minimum uid volume equal to 1/2 of the maximum charge
pump ow per minute. This allows 30 seconds uid dwell for removing entrained air at
the maximum return ow. This is usually adequate to allow for a closed reservoir (no
breather) in most applications.
The reservoir outlet to the charge pump inlet should be above the bottom of the
reservoir to take advantage of gravity separation and prevent large foreign particles from
entering the charge inlet line. A 125 mm screen over the outlet port is recommended.
The reservoir inlet (uid return) should be positioned so that ow to the reservoir
16
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
System design parameters
OVERPRESSURE
PROTECTION
CASE DRAIN
is discharged below the normal uid level, and also directed into the interior of the
reservoir for maximum dwell and efcient de-aeration. A bafe (or bafes) between the
reservoir inlet and outlet ports will promote de-aeration and reduce surging of the uid.
Series 90 motors (as well as other system components) have pressure limitations. As
Series 90 motors are not equipped with overpressure protection, it is necessary that relief
valves or pressure limiters are present elsewhere in the high pressure circuit to protect
components from excessive pressures.
Series 90 pumps are designed with a sequenced pressure limiting system and high
pressure relief valves. When the preset pressure is reached, the pressure limiter system
acts to rapidly de-stroke the pump in order to limit the system pressure. For unusually
rapid load application, the high pressure relief valve function is available to also limit the
pressure level. Refer to publication BLN-10029 for more information.
For systems with relief valves only, high pressure relief valves are intended for transient
overpressure protection and are not intended for continuous pressure control. Operation
over relief valves for extended periods of time may result in severe heat build up. High
ows over relief valves may result in pressure levels exceeding the nominal valve setting
and potential damage to system components.
A case drain line must be connected to one of the case outlets (L1 or L2) to return
internal leakage and loop ushing ow to the system reservoir. The higher of the two
case outlets should be used to promote complete lling of the case. Since case drain
uid is typically the hottest uid in the system, it is advantageous to return this ow
through the heat exchanger.
RESERVOIR
(continued)
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
System design parameters
Based on SI units
Input ow Q = (l/min)
Output torque M = (N•m)
Output power P = (kW)
Motor speed n = (min
-1
(rpm))
Based on US units
Input ow Q = (US gal/min)
Output torque M = (lbf•in)
Output power P = (hp)
Motor speed n = (min
-1
(rpm))
SI units [US units]
V
g
= Displacement per revolution cm
3
/rev [in
3
/rev]
p
O
= Outlet pressure bar [psi]
p
i
= Inlet pressure bar [psi]
∆p = p
O
– p
i
(system pressure) bar [psi]
n = Speed min
-1
(rpm)
η
v
= Volumetric efciency
η
m
= Mechanical efciency
η
t
= Overall efciency (η
v
• η
m
)
SIZING EQUATIONS
Variables
The following equations are helpful when sizing hydraulic motors. Generally, the sizing
process is initiated by an evaluation of the machine system to determine the required
motor speed and torque to perform the necessary work function. Refer to Selection of
drive line components, BLN-9985, for a more complete description of hydrostatic drive
line sizing. First, the motor is sized to transmit the maximum required torque. The pump
is then selected as a ow source to achieve the maximum motor speed.
V
g
• n
1000 • η
v
Q • 1000 • η
v
V
g
V
g
• n
231 • η
v
V
g
• ∆p • η
m
20 • π
Q • ∆p • η
t
600
V
g
• ∆p • η
m
2 • π
Q • ∆p • η
t
1714
Q • 231• η
v
V
g
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520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
System design parameters
EXTERNAL SHAFT
LOADING AND BEARING
LIFE
Bearing life is a function of several operating
conditions including shaft speed, system
pressure, swashplate angle, uid viscosity,
uid cleanliness and external loading. The
bearing will not limit motor life to less than
10 000 B
10
hours at rated speeds for any
duty cycle assuming proper uid conditions
are maintained and no external loads are
present. Particle contamination and poor
viscosity reduce the life of bearings.
External radial forces on the shaft transfer
to the bearing and are additive to the
internal bearing loads. The net effect
on bearing life is thus a function of the
orientation as well as the magnitude of the
external shaft load. Maximum allowable
external shaft load (Re) is determined from
the maximum allowable bending moment
(Me) in the table, Allowable shaft loading
(below), given as a function of orientation
as shown in the gure External shaft load
orientation (right).
Re = Me /L
Although shaft deection increases,
bearing life can be optimized by
orientating the external load so that it is
not additive to the internal loading.
Shaft loading parameters
R
e
Maximum radial side load
M
e
Maximum external moment
L
Distance from mounting ange to
point of load
T
in
Maximum shaft thrust inward
T
out
Maximum shaft thrust outward
Shaft loading
L
R
e
T
in
T
out
P101 432E
Allowable shaft loading
Frame size
Parameter Unit 042 055 075 100 130
M
e
at 0° N•m [lbf•in]
consult factory consult factory consult factory consult factory consult factory
M
e
at 90°, 180°,
270°
N•m [lbf•in]
consult factory consult factory consult factory consult factory consult factory
T
in
N (lbf)
consult factory consult factory consult factory consult factory consult factory
T
out
N (lbf)
consult factory consult factory consult factory consult factory consult factory
0 R
e
180 R
e
90 R
e
270 R
e
Axis of swashplate
rotation
End view
of shaft
P101 433
External shaft load orientation
To offset the internal bearing loads and optimize bearing life, the external load should be
oriented at around 180° if possible.External overhung adapters (or outboard bearings) are
recommended for installations with high radial and/or axial loads. Tapered input shafts
or clamp-type couplings are recommended for installations where radial shaft loads are
present. Splined shafts are not recommended installations where radial loads are present.
Please contact your Sauer-Danfoss representative for a bearing life analysis if:
• continuously applied external radial load exceeds 25% of the maximum allowable.
• design life is greater than 10 000 hours.
Provide information on location and direction of the external load.
19
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Features and options
TWO-POSITION
HYDRAULIC CONTROL
(PT)
Displacement can be changed hydraulically under load from maximum displacement
to minimum displacement and vice-versa, by applying a hydraulic signal to port X1. The
slow orice option will give an appropriate motor shift rate. More abrupt shifts can be
achieved with the fast orice option. The fast orice option may be required on dual path
(differential steer) applications to prevent steering errors during shifting.
M2
B
L1
M1
A
L2
M3
X1
Vg
max
P101 430E
Legend
A, B = Main pressure lines
M3 = Charge pressure gage port
L1, L2 = Drain lines
M1, M2 = Gauge port for port “A” & “B”
X1 = Control pressure port
Port X1 pressurized = Min. displacement
Port X1 drained = Max. displacement
Min. Required Pressure = 60 psi over case
pressure
Control schematic diagram
TWO-POSITION
ELECTROHYDRAULIC
DISPLACEMENT
CONTROL
(NA, NB, NC, ND)
Displacement can be changed electrohydraulically under load from maximum
displacement to minimum displacement and vice-versa, by using a built-in solenoid
valve. The “slow” orice option will give an appropriate motor shift rate. More abrupt
shifts can be achieved with a “fast” orice option. The fast orice option may be required
on “dual path” (differential steer) applications to prevent steering errors during shift.
Legend
A, B = Main pressure lines
M3 = Charge pressure gage port
L1, L2 = Drain lines
M1, M2 = Gauge port for port “A” & “B”
Coil energized = Min. Displacement
Coil de-energized = Max. Displacement
Either polarity of control voltage is
acceptable.
Vg
max
M2
B
L1
M1
A
L2
M3
Control schematic diagram
Mating parts kit
Part no. K03383
Ident # 712190
(female terminals)
Mating parts kit
Part no. K03377
Ident # 629725
(male terminals)
Mating parts kit
Part no.
MS3101AIOSL-4P
(female terminals)
Option NB
12V Packard® Weather Pack
(part no. 12010973)
Option ND
24V Packard® Weather Pack
(part no. 12015792)
Option NA or NC
12 or 24V MS connector
(part no. 12015792)
P104 290E
Coil and connector options
20
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Features and options
LOOP FLUSHING An integral non-adjustable loop ushing valve is incorporated into Series 90 motors.
Installations that require uid to be removed from the low pressure side of the system circuit
because of cooling requirements or contamination removal will benet from loop ushing.
The integral loop ushing valve is equipped with an oriced charge pressure relief valve
designed with a cracking pressure of 16 bar [232 psi]. Valves are available with several
orice sizes to meet the ushing ow requirements of all system operating conditions.
The total system charge pump ow should be of sufcient volume to accommodate:
• The number of motors in the system
• System efciency under worst case conditions
• Pump control requirements
• External needs
Although charge pump sizing requires the consideration of many system variables, the
following table gives a recommendation of what charge pump displacement may be
required to accommodate the ushing ow of each available charge relief valve orice.
Q
Charge
- Q
Leak
Q
Flush
=
2 • k
Mo
Q
Flush
= ushing ow per motor
Q
Charge
= charge ow at operating speed
k
Mo
= number of motors fed by
one pump
Q
Leak.
= sum of external leakages
including the following:
• motor leakage
• pump leakage + internal consumers:
8 l/min [2.11 US gal/min] for
displacement control pumps
or for non-feedback controlled pumps at
200 bar [2900 psi]
• external consumers
(brakes, cylinders, other pumps)
Equation
Where
05
[1.3]
10
[2.6]
15
[4.0]
20
[5.3]
Case flow l/min [US gal/min]
Low system pressure minus case pressure
bar [psi]
25
[6.6]
30
[8.0]
35
[9.2]
40
[10.6]
[508]
35
[363]
25
[218]
15
[73]
5
P001 860E
E4 E6 F0 F3 G0 G3 H0
Loop flushing flow curves
P001 830
BA
Schematic diagram of loop flushing valve
Loop flushing
relief valve
Loop flushing
shuttle valve
P101 426E
Loop flushing valve cross section
W Warning
Unintended vehicle or
machine movement hazard.
Excessive motor loop
ushing ow may result
in the inability to build
required system pressure in
some conditions. Maintain
correct charge pressure
under all conditions of
operation to maintain
pump control performance
in hydrostatic systems.
Recommended charge pump displacement
Orifice option Charge pump displacement
E4 8 cm³ [0.49 in³]
E6 8 cm³ [0.49 in³]
F0 11 cm³ [0.67 in³]
F3 14 cm³ [0.85 in³]
G0 17 or 20 cm³ [1.04 or 1.22 in³]
G3 26 cm³ [1.59 in³]
H0
34, 37, or 65 cm³ [2.07, 2.26, or 3.97 in³]
21
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Features and options
SPEED SENSOR
Speed sensor
Magnetic ring
Cylinder block
P101 429E
Speed Sensor
An optional speed sensor for direct
measurement of speed is available. This
sensor may also be used to sense the
direction of rotation.
A special magnetic ring is pressed onto
the outside diameter of the cylinder
block and a Hall effect sensor is located
in the motor housing. The sensor accepts
supply voltage and outputs a digital
pulse signal in response to the speed of
the ring. The output changes its high/
low state as the north and south poles
of the permanently magnetized speed
ring pass by the face of the sensor. The
digital signal is generated at frequencies
suitable for microprocessor based
controls.The sensor is available with
different connectors (see below).
Pulse frequency
042 055 075 100 130
Pulse per revolution 48 52 58 63 69
P001 492
Red
White
Black
Green
P002 108E
A
B
C
D
Packard Weather-Pack
4 pin
(Supplied Connector)
Mating Connector
No.: K03379
Id.-No.: 505341
P001 758E
Speed sensor with Turck® Eurofast connector
Speed sensor with Packard® Weather-Pack connector
Turck Eurofast Connector
4 pin
(Supplied Connector)
Mating Connector
straight right angle
No.: K14956 No.: K14957
Id.-No.: 500724 Id.-No.: 500725
P001 755E
1
2
3
4
Keyway (Ref)
Specifications
Supply voltage* 4.5 to 8.5 VDC
Supply voltage (regulated) 15 VDC max.
Required current 12 mA at 5 VDC, 1 Hz
Max. current 20 mA at 5 VDC, 1 Hz
Max. frequency 15 kHz
Voltage output (high) Supply -0.5 V min.
Voltage output (low) 0.5 V max.
Temperature range
-40° to 110°C [-40° to 230°F]
* Do not energize the 4.5 to 8.5 VDC sensor with
12 VDC battery voltage. Use a regulated power
supply. If you need to energize the sensor with
battery voltage, contact your Sauer-Danfoss
representative for a special sensor.
22
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Features and options
SHAFT OPTIONS Series 90 motors are available with a variety of splined, straight keyed, and tapered shaft
ends. Nominal shaft sizes and torque ratings are shown in the accompanying table.
Torque ratings assume no external radial loading. Continuous torque ratings for splined
shafts are based on spline tooth wear, and assume the mating spline has a minimum
hardness of Rc 55 and full spline depth with initial lubrication. Maximum torque ratings
are based on fatigue and assume 200 000 load reversals. The permissible continuous
torque may approach the maximum rating if the spline is immersed in circulating oil.
Series 90 shaft options
Shaft description Option
code
Torque rating Frame size availability
N•m in•lbf 042 055 075 100 130
15 tooth, 16/32 pitch spline C3
(SAE)
Maximum:
Continuous:
340
192
3000
1700
— — — —
21 tooth, 16/32 pitch spline C6 Maximum:
Continuous:
1130
384
10 000
3400
—
—
23 tooth, 16/32 pitch spline C7 Maximum:
Continuous:
1580
509
14 000
4500
— —
—
27 tooth, 16/32 pitch spline C8 Maximum:
Continuous:
2938
814
26 000
7200
— — — —
13 tooth, 8/16 pitch spline F1 Maximum:
Continuous:
1810
746
16 000
6600
— — —
13 tooth, 8/16 pitch spline (long) F2 Maximum:
Continuous:
1810
746
16 000
6600
— — —
—
14 tooth, 12/24 pitch spline S1 Maximum:
Continuous:
735
283
6500
2500
—
—
17 tooth, 12/24 pitch spline S5 Maximum:
Continuous:
1695
599
15 000
5300
— — —
—
34.9 mm [1.374 in] dia.
straight keyed
K1 Maximum: 768 6800 —
— — —
38.07 mm [1.499 in] dia.
straight keyed
K2 Maximum: 1130 10 000 — —
— —
44.42 mm [1.749 in] dia.
straight keyed
K3 Maximum: 1582 14 000 — — —
—
Available
— Not available
Recommended mating splines for Series 90 splined output shafts should be in
accordance with ANSI B92.1 Class 5. Sauer-Danfoss external splines are modied class
5 llet root side t. The external spline major diameter and circular tooth thickness
dimensions are reduced to assure a clearance t with the mating spline. Contact your
Sauer-Danfoss representative for other splined shaft options.
23
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Features and options
DISPLACEMENT LIMITERS
(055MV ONLY)
Series 90 055MV variable motors include
mechanical displacement (stroke)
limiters. Both maximum and minimum
displacement of the motor can be
limited.
Adjustments can be made by loosening
the seal lock nut and rotating the limiter
screw. Reducing displacement increases
motor speed for a given ow rate,
increasing displacement reduces speed.
The seal lock nut must be re-torqued
after any adjustment.
Series 90 variable motors are shipped
with the minimum displacement limiter
set at the lowest displacement setting
and the maximum displacement setting
set at full displacement.
W WARNING
Undesirable vehicle or machine speed
hazard.
To avoid undesirable speed conditions,
adjust displacement limiters carefully.
Make small adjustments and test in a
controlled environment. Re-torque the
sealing lock nut after every adjustment
to prevent an unexpected changes
and external leakage. Replace tamper-
resistant caps before returning the motor
to service.
Tamper resistant cap
Tamper resistant cap
Seal lock-nut
Seal lock-nut
Maximum displacement
limiter screw
Minimum displacement
limiter screw
P101 427E
Displacement limiter adjustment screws
Motor shaft rotation
Shaft direction Flow direction
Port A Port B
Clockwise (CW) in out
Counterclockwise (CCW) out in
24
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawingsmm
[in]
90M42 FIXED MOTOR
SAE MOUNT
System pressure "A"
gauge port M1
1
9/16-18UNF-2B
System pressure "B"
gauge port M2
1
9/16-18UNF-2B
156
[6.14]
“Wa”
View“Z”
(rear view)
Port“A”
42.00
[1.65]
42.00
[1.65]
25.40
[1.00]
(4) places
Port“B”
23.80
[0.94]
Main port
¾ dia. – 6000 psi
split flange boss per SAE J518
3/8-16UNC-2B
20 [0.787] minimum full thread depth
View“Wa”
(bottom port view)
twin ports
190.5
[7.5]
Case drain
1
7/8-14UNF-2B
67.00
[2.64]
12.5
[0.49]
9.7
[0.38]
“Z”
“X”
101.6
-0.002
[4 dia.
-0.05
86
[3.39]
169.5
[6.67]
Left side view
P101 434
+0.0
]
+0.0
25
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
Splined output shaft options
Output
shaft
option
Shaft
diameter
T
Full spline
length
U
Major
diameter
V
Length
X
Pitch
diameter
W
Number of
teeth
Y
Pitch
Z
C2
18.67
[0.735]
19.0
[0.748]
21.72
[0.855]
33
[1.3]
20.6375
[0.8125]
13 16/32
C3
19.9
[0.784]
25
[0.98]
25.27
[0.994]
33
[1.3]
23.8125
[0.9375]
15 16/32
Loop flushing valve
14.3
[0.56]
146
[5.75]
174
[6.85]
View “X”
(front view)
8
[0.31]
"U"
"X”
"V"
"T"
P101 435
"W"
99
[3.90]
186.1
[7.33 maximum]
Flow direction
Shaft rotation
Flow direction
Port “A” Port “B”
Clockwise (CW) Out In
Counterclockwise (CCW) In Out
90M42 FIXED MOTOR
SAE MOUNT
(continued)
26
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawingsmm
[in]
[6.2982±
0.001]
159.975
±
0.025
"Y "
"Z"
"X"
View “Z”
(rear view)
axial ported
Port “A”
Port “B”
11.2
[0.44]
End cap ports
25.4 [1.00 dia.] – 6000 psi
(4) bolt split flange type per
SAE J518 (Code 62) except
20.8 [0.82] minimum
full thread depth
41.8
[1.64]
41.8
[1.64]
0.5625 – 18 straight
system pressure
gauge port M1
1
18.8
[0.74]
0.875 – 14 straight
case outlet port L1
1
63.7
[2.51]
83.14 ± 0.54
[3.273 ± 0.021]
130.80 ± 0.023
[5.150 ± 0.001]
0.5625 – 18 straight
system pressure
gauge port M2
1
Loop flushing valve
View “Y”
(top view)
View"Z"
(rear view)
twin ported
0.5625 – 18 straight thread
O-ring boss system pressure
gauge port M2
1
Port “A”
Port “B”
91.4
[3.60]
ports
“A”&“B”
82.3
[3.24]
82.3
[3.24]
99
[3.90]
View “W”
(bottom view)
114.31
[4.50]
63.71
[2.51]
17
[0.67]
Port “A”
0.875 – 14 straight
thread O-ring boss
case outlet port L2
1
41.78
[1.645]
41.78
[1.645]
18.8
[0.74]
Port “B”
0.5625 – 18 straight
End cap options:
C =Twin-no loop flush
1 =Twin code 61
8 =Twin
25.4 [1.00 dia.] – 6000 psi
(4) bolt split flange type
per SAE J518 (Code 62)
except 20.8 [0.82]
minimum full depth
“W”
left side view
Twin ported
Axial ported
51.8
[2.04]
86.4
[3.40]
R. 0.0 [0.0] maximum
108
[4.25]
152.4
[6.00]
146.8
[5.78]
13
[0.512]
6.3
[0.248]
O-ring seal
153.7
[6.05]
Ports“A” &“B”
P101 438
thread O-ring boss
thread O-ring boss
thread O-ring boss
thread O-ring boss shaft
speed sensing port
1
D = Twin-metric ports
1.00 – 6000 psi (4) bolt
split flange tupe per
SAE J518 (Code 62)
except M12x1.75
thread 0.87 [22]
minimum full thread
90K55 FIXED MOTOR
CARTRIDGE MOUNT
27
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
Splined output shaft options
Output shaft
option
Shaft
diameter T
Full spline
length U
Major
diameter V
Pitch
diameter W
Number of
teeth Y
Pitch Z
S1
24.9
[0.98]
27.9
[1.10]
31.13
[1.2258]
29.634
[1.1667]
14 12/24
C6
29
[1.14]
32.5
[1.28]
34.42
[1.3550]
33.338
[1.3125]
21 16/32
35˚
CCW
CW
"T" dia. maximum
"V" dia.
"U"
Coupling must not
protrude beyond
this surface
R. 2.54
[R. 10] maximum
Splined shaft options
(see tables)
61.86
[2.435]
Coupling must not protrude
beyond 58.1 [2.29] maximum
7.938 [0.3125] square key
x
38.1 [1.5] long
Ø34.900
[Ø1.3740]
Shaft option K1
176
[6.93]
100
[3.94]
100
[3.94]
85.5
[3.37]
80
[3.15]
case
outlet
86.1
[3.39]
case outlet
(alternate position)
Port “B”
Port "A"
View “X”
(front view)
Speed sensor connector
(4) places
230
[9.06]
17.1
[0.67
P101 43
9
+0.5
-0.2
+0.02
-0.01
]
2 places
Flow direction
Shaft rotation Flow direction
Port “A” Port “B”
Clockwise (CW) Out In
Counterclockwise (CCW) In Out
90K55 FIXED MOTOR
CARTRIDGE MOUNT
(continued)
28
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
mm
[in]
+0.000
[5.000
-0.002
+0.0
127.0
-0.05
"Y"
"X"
"W"
"Z"
Endcap ports
1.00 dia. – 6000 psi
(4) bolt split
flange type per
SAE J518 (code 62)
except 20.8 [0.82]
minimum full depth
41.78
[1.645]
41.78
[1.645]
11.2
[0.44]
88.4
[3.48]
Port “A”
Port “B”
View “Z”
(rear view)
axial ported
82.3
[3.24]
82.3
[3.24]
99
[3.88 ]
Port “A”
91.4
[3.60]
ports
“A”&“B”
Port “B”
0.5625 – 18 straight thread
O-ring boss per SAE J514
charge pressure gauge port M3
1
(to be used as gauge port only)
View “Z”
(rear view)
twin ported
0.875 – 14 straight thread
O-ring boss case
outlet port L1
1
0.5625 – 18 straight thread
O-ring boss per SAE J514
system pressure gauge port M1
1
Loop flushing valve
0.5625 – 18 straight thread
O-ring boss per SAE J514
system pressure gauge port M2
1
View “Y”
(top view)
103.6
[4.08]
7.87
[0.310]
228.9
[9.01]
Port
s“
A” &“B”
3.0
[0.12]
228.3
[8.99]
221.7
[8.73]
Approximate center
of gravity
12.7
[0.50]
R. 0.8 maximum
[0.03]
14.7
[0.58]
(4) places
132.1
[5.20]
Axial ported
Twin ported
Left side view
189.5
[7.46]
Port “B”
41.78
[1.645]
41.78
[1.645]
End cap ports
1.00 in dia. 6000 psi
(4) bolt split flange
type per SAE J518
(code 62) except
20.8 [0.82] minimum
full thread depth
Port “A”
View“W”
(bottom view)
103.6
[4.08]
0.875 – 14 straight
thread O-ring boss
per SAE J514 case
outlet port L2
1
P101 440
]
Loop
flushing
valve
90M55 FIXED MOTOR
SAE MOUNT
29
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
Splined output shaft options
Output shaft
option
Shaft
diameter T
Full spline
length U
Major
diameter V
Pitch
diameter W
Number of
teeth Y
Pitch Z
S1
24.9
[0.98]
27.9
[1.10]
31.13
[1.2258]
29.634
[1.1667]
14 12/24
C6
29
[1.14]
32.5
[1.28]
34.42
[1.3550]
33.338
[1.3125]
21 16/32
Shaft option: K1
(keyed)
View “X”
(front view)
CCW
CW
Splined shaft options
(see table)
V dia.
U ± 0.5 [± 0.02]
T dia. maximum
R. 2.5 maximum
[0.1] 2 places
7.87 ± 0.381
[0.310 ± 0.015]
Coupling must not
protrude beyond
this surface
47.62 ± 0.6
[1.875 ± 0.025]
Coupling must not
protrude beyond
58.1 [2.29] maximum
7.938
x
38.1 [1.50] long
61.85 ± 0.64
[2.435 ± 0.025]
34.900 ± 0.025
[1.3740 ± 0.0010]
Speed sensor connector
Port“B”
Port“A”
Approximate
center of
gravity
R. 7.4 ± 0.8
[0.29 ± 0.03]
(4) places
57.25
[2.254]
(2) places
73.2
[2.88]
(2) places
84.8
[3.34]
minimum
73.2
[2.88]
(2) places
57.25
[2.254]
(2) places
73.9 [2.91]
case outlet
76.2 [3.00]
case outlet
alternate position
P101 441
[0.3125
] square key
+0.0
+0.0
-0.002
-0.05
Flow direction
Shaft rotation
Flow direction
Port “A” Port “B”
Clockwise (CW) Out In
Counterclockwise (CCW) In Out
90M55 FIXED MOTOR
SAE MOUNT
(continued)
30
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawingsmm
[in]
6.23
[158.3]
Port "A"
"Y"
"X"
"W"
LEFT SIDE VIEW
.5625-18 Str Thd
O-Ring Boss
System Pressure
Gage Port M1*
Charge Pressure
Relief Valve
18.8
[.74]
Both Sides
.5625-18 Str Thd
O-Ring Boss
System Pressure
Gage Port M2*
Max
Displacement
Limiter
Motor Shift
Solenoid Valve
Port X1
0.4375-20 Str Thd
O-Ring Boss
117.6
[4.63]
View "Y"
(top view)
Motor Shift Hydraulic
Control Valve
.875-14 Str Thd
O-Ring Boss
Case Outlet
Port L1*
75.2
[2.96]
Both Sides
C
L
.5625-18 Str Thd
O-Ring Boss
Charge Pressure Gage
Port M3* (On Vertical )
123.7
[4.87]
73.9
[2.91]
Case
Outlet
118.4
[4.66]
91.4
[3.60]
Split
Flange
86.1
[3.39]
Alternate
Case
Outlet
158
[6.22]
64
[2.52]
19
[.75]
(2) Places
109
[4.29] Dia
187.7
[7.39] Dia
Max
189.975 ± 0.025
[7.4793 ± 0.001] Dia
125
[4.92]
Max
O-Ring Seal
98.8
[3.89] Max
Min
Displacement
Limiter
Port "B"
41.78
[1.645]
(2) Places
Endcap Ports
Options
1 = Twin Code 61
8 = Twin Code 62
Twin Ported
1.00 Dia -6000 psi
(4) Bolt Split
Flange Type per
SAE J518 (Code 62)
Except 20.8 [0.82]
Min Full Depth
.875-14 Str Thd
O-Ring Boss
Case Outlet Port L2*
125.7
[4.95]
View "W"
(Bottom view)
P101 442E
90M55 VARIABLE MOTOR
CARTRIDGE MOUNT
31
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
90M55 VARIABLE MOTOR
CARTRIDGE MOUNT
(continued)
"U"
CCW
CW
164
[5.75]
264.9
[10.43] Dia
105
[4.14]
100.3
[3.95]
35
(4) Places
84.8
[3.34]
Dia Min
207.81
[8.18] Dia
Speed Sensor
Connector
View "X"
(Front View)
22.22
[0.875] Dia
(2) Places
111.99
[4.409]
(2) Places
140.00
[5.512]
99.26
[3.908]
Coupling must not
protrude beyond this
surface
"W" Pitch Dia
30˚ Pressure Angle
"Y" teeth, "Z" pitch
Fillet root side
fit per "R"
"T" Dia Max
"V" Dia
R. 2.54
[10] Max
Splined shaft options
(see table)
P101 443E
Splined output shaft option
Output shaft
option
Shaft
diameter T
Full spline
length U
Major
diameter V
Pitch
diameter W
Number of
teeth Y
Pitch Z
S1
24.9
[0.98]
25.4
[1.00]
31.14
[1.2258]
29.634
[1.1667]
14 12/24
Flow direction
Shaft rotation
Flow direction
Port A Port B
Clockwise (CW) in out
Counterclockwise (CCW) out in
32
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawingsmm
[in]
L
"Y"
"X"
"W"
0.5625-18 Str Thd
O-Ring Boss
System Pressure
Gage Port M1*
Charge Pressure
Relief Valve
18.8
[0.74]
Both Sides
0.5625-18 Str Thd
O-Ring Boss
System Pressure
Gage Port M2*
Max
Displacement
Limiter
Motor Shift
Solenoid Valve
Port X1
0.4375-20 Str Thd
O-Ring Boss
View "Y"
(Top View)
209
[8.23]
Motor Shift
Hydraulic Control Valve
0.875-14 Str Thd
O-Ring Boss
Case Outlet Port
L1*
166.6
[6.56]
Both Sides
.5625-18 Str Thd
O-Ring Boss
Charge Pressure
Gage Port M3*
(On Vertical C )
123.7
[4.87]
72.9
[2.91]
Case
Outlet
118.4
[4.66]
91.4
[3.60]
Split
Flange
86.1
[3.39]
Alternate
Case
Outlet
Left Side View
249.4
[9.82]
14.2 [.56]
(4) Places
R .5
[0.02]
25˚
0.64
[0.025]
127 +0.0, -0.002
[5.000 Dia +0.000
-0.002]
12.7
[0.50]
.4375-20 Str Thd
O-Ring Boss
Servo Pressure Gage
Port for Min
Displacement
249.7
[9.83]
Min
Displacement
Limiter
Port "B"
Endcap Ports
Option:
8 = Twin Ported
1.00 DIA - 6000 psi
Split Flange Boss
per SAE J518 (Code 62)
Except 20.8 [.082] Min
Full Thd
41.78
[1.645]
(2) Places
Port "A"
View "W"
(Bottom View)
0.875-14 Str Thd
O-Ring Boss
Case Outlet
Port L2*
249.7
[9.83]
P101 444E
90V55 VARIABLE MOTOR
SAE MOUNT
33
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
90V55 VARIABLE MOTOR
SAE MOUNT
(continued)
Splined output shaft option
Output shaft
option
Shaft
diameter T
Full spline
length U
Major
diameter V
Pitch
diameter W
Number of
teeth Y
Pitch Z
S1
24.9
[0.98]
27.9
[1.10]
31.13
[1.2258]
29.634
[1.1667]
14 12/24
Flow direction
Shaft rotation
Flow direction
Port A Port B
Clockwise (CW) in out
Counterclockwise (CCW) out in
"S"
"U"
"T" Max Dia
"V" Dia
CCWCW
146
[5.75]
0.4375-20 Str Thd
O-Ring Boss per
SAE J514 Servo
Pressure Gage Port for
Max Displacement
73.2
[2.88]
(2) Places
57.25
[2.254]
(4) Places
[14.27] .562 Dia
(4) Places
Speed Sensor Connector
View "X"
(front view)
57.25
[2.254]
(4) Places
73.2
[2.88]
(2) Places
195.1
[7.68] Dia
84.8 Min
[3.34] Dia
97
[3.80]
Coupling must not protrude
beyond this surface
7.9
[.310]
"W" Pitch Dia
30˚ Pressure Angle
"Y" Teeth, "Z" Pitch
Fillet Root Side Fit per
"R"
R. 2.54 [10] Max
(2) Places
Splined shaft options
(see table)
P101 445E
34
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawingsmm
[in]
O-ring seal
Mounting flange
"X"
"Y"
"W"
"Z"
41.78
[1.645]
41.78 [1.645]
11.81
[0.465]
Port "A"
Port "B"
View "Z"
(rear view)
axial ported
Endcap ports axial ported
1.00 dia. – 6000 psi
(4) bolt split
flange type per SAE
J518 (Code 62)
except 20.8 [0.82]
minimum full
thread depth
0.5625 – 18 straight thread
O-ring boss charge
pressure gauge point M3
1
82.3
[3.24]
82.3
[3.24]
106.7
[4.20]
with
change
relief
96.8
[3.81]
Ports
"A" & "B"
Port "A"
Port "B"
View "Z"
(rear view)
axial ported
97.30
[3.83]
114
[4.49]
90.17
[3.55]
without
change
relief
Axial ported
Twin ported
161.7
[6.37]
"A" & "B"
Left side view
R. 0.8
[0.03]
189.975 ± 0.025
[7.4793 ± 0.0010]
164.6
[6.48]
112.5
[4.43]
maximum
154.8
[6.09]
96.2
[3.79]
6.3
[0.248]
13
[0.512]
Loop flushing valve
View "Y"
(top view)
0.5625 – 18 straight thread
O-Ring boss system pressure
gauge port M2
1
0.5625 – 18 straight
thread O-ring
boss system
pressure gauge
port M1
1
1.0625 – 12 straight
thread O-ring boss
case outlet gauge
port L1
1
68.1
[2.68]
140.04 ± 0.59
[5.513 ± 0.023]
92.37 ± 0.54
[3.637 ± 0.021]
Endcap ports:
Options: 1 & 8
twin ported 1.00 – 6000 psi
(4) bolt split flange type
per SAE J518 (Code 62)
except 20.8 [0.82]
minimum full thread depth
Option: D
twin ported 1.00 – 6000psi
(4) bolt split flange type
per SAE J518 (Code 62)
except M12x1.75 thread 22
[0.87] minimum full thread
Port "B"
41.78 [1.645]
Port "A"
41.78 [1.645]
21 [0.83]
124.3
[4.89]
View "W"
(bottom view)
68.1
[2.68]
19
[0.75]
1.0625 – 12 straight thread
O-ring boss per SAE J514
case outlet port L2
1
0.5625 – 18 straight thread
O-ring boss per SAE J514
shaft speed sensing port
1
61.5 [2.42]
maximum
56.6
[2.23]
P101 446
21
[0.83]
90K75 FIXED MOTOR
CARTRIDGE MOUNT
35
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
Splined output shaft options
Output shaft
option
Shaft
diameter T
Full spline
length U
Major
diameter V
Pitch
diameter W
Number of
teeth Y
Pitch Z
S1
29.9
[0.98]
27.9
[1.10]
31.13
[1.2258]
29.634
[1.1667]
14 12/24
C6
29
[1.14]
32.5
[1.28]
24.42
[1.3550]
33.338
[1.3125]
21 16/32
C7
32.3
[1.27]
34.8
[1.37]
37.59
[1.480]
36.513
[1.4375]
23 16/32
199.14 ± 0.64
[7.84 ± 0.025]
CCW
CW
Ø206
[Ø8.11]
35˚
(4) places
22.2
[0.87] dia.
(2) places
Ø265
[Ø10.433]
Port "B"
Port "A"
View "X"
(Front view)
Speed sensor connector
92.8
[3.65]
case outlet
(alternate
position)
85.3
[3.36]
case
outlet
Ø91
[Ø3.58]
112
[4.41]
112
[4.41]
Mounting flange
reference
Coupling must not protrude
beyond 56.39 [2.22] maximum
[1.4990 ± 0.0010]
Shaft options K2
(keyed)
P101 447
38.075 ± 0.025
9.525
[0.375
square key x 38.1 long
[1.5]
+0.0
-0.05
+0.0
-0.002
]
Coupling must not
protrude beyond
this surface
24.9
[0.98]
maximum
27.9
[1.10]
full spline
length
31.135 ± 0.090
[1.2258 ± 0.0035]
R . 2.51 [0.10]
maximum
Splined shaft options
(see table)
Flow direction
Shaft rotation
Flow direction
Port “A” Port “B”
Clockwise (CW) Out In
Counterclockwise (CCW) In Out
90K75 FIXED MOTOR
CARTRIDGE MOUNT
(continued)
36
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
mm
[in]
90M75 FIXED MOTOR
SAE MOUNT
"Y"
"X"
"W"
"Z"
41.78
[1.645]
End cap ports: options 3 & 7
axial ported 1.00 –
6000 psi (4) bolt split
flange type per SAE J518
(code 62) except 20.8 [0.82]
minimum full thread depth
11.81
[0.465]
Port "B"
Port "A"
97
[3.82]
View "Z"
(rear view)
axial ported
41.78
[1.645]
View "Z"
(rear view)
twin ported
82.3
[3.24]
82.3
[3.24]
105.8
[4.16]
non-adjacent
charge relief
90.2
[3.55]
with out
charge relief
Port "A"
96.8
[3.81]
ports
"A" & "B"
0.5625 – 18 straight thread
O-ring boss
charge pressure
gauge port M3
1
1.0625 – 12 straight thread
O-ring boss per SAE J514
case outlet port L1
1
0.5625 – 18 straight
thread O-ring boss
system pressure
gauge port M1
1
Loop flushing valve
113.8
[4.48]
0.5625 – 18 straight
thread O-ring boss
per SAE J514
system pressure
gauge port M2
1
View "Y"
(top view)
246.1
[9.69]
Ports "A" & "B"
239.8
[9.44]
239
[9.41]
12.7
[0.50
Approximate
center of gravity
3.8
[0.15]
Ø127
[Ø5.000
R. 0.8 [0.03]
maximum
14.7
[0.58]
(4) places
141.2
[5.56]
Axial ported
Twin ported
Left side view
View "W"
(bottom view)
Port "A"
Port "B"
End cap ports:
options: 1 & 8
twin ported
1.00 dia. – 6000 psi
(4) bolt split
flange type per SAE
J518 (code 62) except
20.8 [0.82] minimum
full thread depth
option: D
1.00 – 6000 psi (4) bolt
split flange type per SAE
J518 (Code 62) except
M12 x 1.75 thread 0.87
[22] minimum full thread
41.78
[1.645]
41.78
[1.645]
208.8
[8.22]
113.8
[4.48]
0.5625 – 18 straight thread
O-ring boss per SAE J514
shaft speed sensor port
1
1.0625 – 12 straight thread
O-ring boss per SAE J514.
case outlet (alternate
position) port L2
1
P101 448
+0.000
-0.002
+0.00
-0.05
]
+0.0
-0.5
+0.0
-0.02
]
Port "B"
Loop
flushing
valve
37
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
Splined output shaft options
Output shaft
option
Shaft
diameter
T
Full spline
length U
Major
diameter V
Pitch
diameter W
Number of
Teeth Y
Pitch Z
S1
24.9
[0.96]
27.9
[1.10]
31.13
[1.2256]
29.634
[1.667
14 12/24
C6
29
[1.14]
325
[1.26]
24.42
[1.3550]
33.336
[1.3125]
21 16/32
C7
32.3
[1.27]
34.6
[1.37]
37.59
[1.460]
36.513
[1.4375]
23 16/32
3.25
[82.6]
case
outlet
CCW
CW
View "X"
(front view)
57.25
[2.254]
(2) places
73.2
[2.88]
(2) places
94
[3.70]
minimum
57.25
[2.254]
(2) places
82.6
[3.25]
case outlet
(alternate
position)
Approximate
center of
gravity
7.4 ± 0.8
[0.29 ± 0.031]
(4) places
Port "B"
Speed sensor connector
Port "A"
Coupling must not
protrude beyond
2.22 maximum
61.85
[2.435]
38.075 ± 0.025
[1.499 ± 0.001]
9.525
Shaft option K2
(keyed)
P101 44
9
73.2
[2.88]
(2) places
[0.375
square key x 38.1 long
]
+0.000
-0.002
+0.0
-0.05
[1.5]
"U"
Splined shaft options
(see table)
Coupling must not
protrude beyond
this surface
7.87
[0.310]
47.62 ± 0.64
[1.875 0.025]
R. 2.5 [0.10]
maximum
"T" dia.
maximum
"D" thread
"V" dia.
"E" maximum
Flow direction
Shaft rotation
Flow direction
Port “A” Port “B”
Clockwise (CW) Out In
Counterclockwise (CCW) In Out
90M75 FIXED MOTOR
SAE MOUNT
(continued)
38
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
mm
[in]
90M100 FIXED MOTOR
SAE MOUNT
"Y"
"X"
"W"
"Z"
41.78
[1.645]
41.78
[1.645]
104.1
[4.10]
12.95
[0.510]
Port "A"
Port "B"
View "Z"
(rear view)
axial ported
92.2
[3.63]
92.2
[3.63]
109.4
[4.31]
with charge
relief
93.7
[3.69]
without
charge relief
0.5625 – 18 straight
thread O-ring boss
charge pressure
gauge port M3
1
103.6
[4.08]
ports
"A" & "B"
Port "A"
Port "B"
View "Z"
(rear view)
twin ported
273.3
[10.76]
Ports "A" & "B"
Axial ported
Twin ported
6.4
[0.25]
Left side view
153.9
[6.06]
14.2
[0.56]
(4) places
R. 0.8 [0.03]
maximum
127
[5.00
12.7
[0.50
272.3
[10.72]
265.7
[10.46]
Approximate
center of gravity
End cap ports
1.00 dia. – 6000 psi
(4) bolt split
flange type per SAE J518
(code 62) except 20.8 [0.82]
minimum full thread depth
0.5625 – 18 straight thread
O-ring boss per SAE J514
system pressure
gauge port M1
1
Loop flushing valve
0.5625 – 18 straight
thread O-ring boss per
SAE J514 system pressure
gauge port M2
1
1.0625 – 12 straight thread
O-ring boss per SAE J514
case outlet port L1
1
View "Y"
(top view)
128
[5.04]
End cap ports
1.00 – 6000 psi (4) bolt
split flange type per SAE
J518 (Code 62) except
20.8 [0.82] minimum
full thread depth
1.0625 – 12 straight
thread O-ring boss
per SAE J514 case
outlet port L2
1
41.78
[1.645]
41.78
[1.645]
Port "B"
View "W"
(bottom view)
128
[5.04]
230.9
[9.09]
Port "A"
P101 454
+0.0
-0.002
-0.05
+0.0
]
+0.0
-0.5
+0.00
-0.02
]
Loop
flushing
valve
49.53
[1.95]
49.53
[1.95]
1.0625-12
straight thread
O-ring boss per
SAE J514
auxiliary
systems ports
module E only
39
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
CCW
CW
View "X"
(front view)
Speed sensor connector
57.25
[2.254]
(2) places
73.2
[2.88]
(2) places
Ø100.6
[Ø3.96]
minimum
73.2
[2.88]
(2) places
57.25
[2.254]
(2) places
R. 7.37 ± 0.76
[0.29 ± 0.03]
(4) places
Approximate
center of
gravity
Port "A"
Port "B"
92.2
[3.63]
case outlet
(alternative position)
95
[3.74]
case
outlet
Coupling must not
protrude beyond
2.33 maximum
61.85 ± 0.64
[2.435 ± 0.025]
Shaft option K3
(keyed)
44.425 ± 0.025
[1.749 ± 0.001]
9.525
P101 45
5
+0.0
-0.002
+0.0
-0.05
[0.375 ] [1.5]
square key x 38.1 long
"S" ± 0.64 [± 0.025]
Ø"V" ± 0.09 [± 0.0035]
"E" thread
"U" ±0.5 [± 0.02]
"F" maximum
"T" dia.
maximum
Splined shaft options
(see chart)
7.87
[0.31]
R. 2.5 [0.10]
maximum
Coupling must not
protrude beyond
this surface
Splined output shaft options
Output
shaft
option
shaft
diameter T
Full spline
length U
Major
diameter V
Pitch
diameter
W
Number of
teeth Y
Pitch Z Length S
S1 24.9
[0.98]
27.9
[1.10]
31.13
[1.2258]
29.634
[1.1667]
14 12/24 47.6
[1.875]
C7 32.3
[1.27]
34.8
[1.37]
37.59
[1.480]
36.513
[1.4375]
23 16/32 47.6
[1.875]
F1 34.5
[1.36]
49.5
[1.95]
43.94
[1.730]
41.275
[1.6250]
13 8/16 66.7
[2.625]
F2 34.5
[1.36]
67.1
[2.64]
43.94
[1.730]
41.275
[1.6250]
13 8/16 84.3
[3.32]
Flow direction
Shaft rotation
Flow direction
Port “A” Port “B”
Clockwise (CW) Out In
Counterclockwise (CCW) In Out
90M100 FIXED MOTOR
SAE MOUNT
(continued)
40
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
mm
[in]
B
A
B
A
"Y"
"X"
"W"
"Z"
0.5625 – 18 straight
thread O-ring boss per
SAE J514 charge pressure
gauge port M3
1
(to be
used as gauge port only)
117.3
[4.62]
with charge
relief
107.9
[4.25]
without
charge relief
111.8
[4.40]
split
flange
104.2
[4.10]
104.2
[4.10]
View "Z"
(rear view)
View "Y"
(top view)
0.5625 – 18 straight
thread O-ring boss
system pressure
gauge port M1
1
Loop flushing valve
0.5625 – 18 straight
thread O-ring boss
system pressure
gauge port M2
1
1.3125 – 12 straight
thread O-ring boss
case outlet Port L1
1
146
[5.75]
both sides
96.5
[3.80]
case drain
both sides
R. 0.8 [0.03] maximum
12.7
[0.50]
17.4
[0.69]
(4) places
Left side view
[6.000 dia.]
View "W"
(bottom view)
1.3125 – 12 straight
thread O-ring boss
per SAE J514 case outlet
port L2
1
(optional shaft
speed sensor location)
End cap ports
1.25 dia. – 6000 psi split flange
boss
1
per SAE J518 (Code 62)
1/2-13UNC-2B except 23.6
[0.93] minimum full thread
298.6
[11.76]
259
[10.20]
Port "B"
Port "A"
51.9
[2.043]
(2) places
P101 456
+0.0
-0.05
+0.0
-0.002
152.4
90M130 FIXED MOTOR
SAE MOUNT
41
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Installation drawings
mm
[in]
All SAE straight thread O-rings ports per SAE J1926 (ttings per SAE 514). Shaft rotation
is determined by viewing motor from output shaft end. Contact your Sauer-Danfoss
representative for specic installation drawings
Splined output shaft options
Output
shaft
option
Shaft
diameter
T
Full spline
length
U
Major
diameter
V
Pitch
diameter
W
Number
of teeth
Y
Pitch
Z
Length
S
F1
34.5
[1.36]
42.5
[1.67]
43.94
[1.730]
41.275
[1.6250]
13 8/16
66.7
[2.625]
C8
37.5
[1.48]
42.5
[1.67]
43.94
[13730]
42.862
[1.6875]
27 16/32
66.7
[2.625]
"S"
"V" Dia.
Splined shaft options
(see table)
R. 2.3 [0.09] maximum
"T" Dia.
maximum
"U"
R. 0.8 [0.03]
maximum
7.9
[0.310]
Coupling must not protrude
beyond this surface
100.0
[3.94]
(2) Places
80.8
[3.181]
(4) places
CCWCW
100
[3.94]
(2) places
80.
P101 868
8
[3.181]
(2) places
Ø113
[Ø4.45]
minimum
R. 10.5 ± 0.6
[0.41 ± 0.02]
(4) places
Flow direction
Shaft rotation
Flow direction
Port “A” Port “B”
Clockwise (CW) Out In
Counterclockwise (CCW) In Out
90M130 FIXED MOTOR
SAE MOUNT
(continued)
42
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Notes
43
520L0604 • Rev DB • September 2008
Series 90 Axial Piston Motors
Technical Information
Notes
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DK-6430 Nordborg, Denmark
Phone: +45 7488 4444
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Phone: +49 4321 871-0
Fax: +49 4321 871 122
520L0604 • Rev DB • September 2008