Technical Information

Series 90
Axial Piston Motors

www.danfoss.com

Technical Information
Series 90 Axial Piston Motors

Revision history

Table of revisionsDate

2 | © Danfoss | November 2021

ChangedRev

November 2021 Fixed Endcap Ports in MMC, adjusted revision numbers with DAM Hub

0711

July 2021

Updated operating parameters

0608

June 2021

Updated Master Model Code, Changed document number from 'BC00000017' to'BC152886483265'

0607

July 2019

Ffixed data 90K75 Cart. and SAE mount.

0606

January 2017

edits to graph and table on page 170605

July 2016

fix drawing on page 27

0604

November 2015 fixx drawing on page 30

0603

March 2014

connector corrections on page 18

FB

February 2014

Danfoss Layout

FA

November 2013 remove variable motors information

EA

November 2012 various updatesDC

September 2008 flange to shaft length dimension should be [5.15 ±0.001]

DB

April 2007

Remove allowable shaft loading data - consult factory

DA

March 2004

Fourth edition

D

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Contents
General Description
Series 90 Family of Pumps and Motors.....................................................................................................................................4
Fixed Displacement Motor, SAE Mount....................................................................................................................................5
Fixed Displacement Motor, Cartridge Mount........................................................................................................................ 6
Series 90 Pictorial Circuit Diagram............................................................................................................................................. 7
System Schematic............................................................................................................................................................................ 7
Technical Specifications
Overview..............................................................................................................................................................................................8
Features and Options......................................................................................................................................................................8
Specifications..................................................................................................................................................................................... 8
Operating Parameters.....................................................................................................................................................................8
Fluid Specification............................................................................................................................................................................9
Operating Parameters
Input Speed......................................................................................................................................................................................10
Independent Braking System...............................................................................................................................................10
System Pressure..............................................................................................................................................................................10
Case Pressure...................................................................................................................................................................................11
Temperature.................................................................................................................................................................................... 11
Viscosity.............................................................................................................................................................................................11
System Design Parameters
Fluid and Filtration........................................................................................................................................................................ 12
Independent Braking System.................................................................................................................................................... 12
Reservoir............................................................................................................................................................................................12
Overpressure Protection............................................................................................................................................................. 13
Case Drain.........................................................................................................................................................................................13
Sizing Equations............................................................................................................................................................................. 13
Formulas...................................................................................................................................................................................... 13External Shaft Loading and Bearing Life................................................................................................................................13
Applications with external shaft loads..............................................................................................................................14
Master Model Code
Series 90 Motors Master Model Code Breakdown............................................................................................................. 16
S90 Type, Size Endcap Options................................................................................................................................................. 16
S90 Shaft and Loop Flushing System......................................................................................................................................16
S90 Special Hardware and Loop Flushing Valve.................................................................................................................17
Features and Options
Loop Flushing..................................................................................................................................................................................18
Speed Sensor................................................................................................................................................................................... 19
Shaft Options...................................................................................................................................................................................20
Installation Drawings
90K55 Fixed Motor Cartridge Mount...................................................................................................................................... 22
90M55 Fixed Motor SAE Mount................................................................................................................................................ 24
90K75 Fixed Motor Cartridge Mount...................................................................................................................................... 26
90M75 Fixed Motor SAE Mount................................................................................................................................................ 28
90M100 Fixed Motor SAE Mount..............................................................................................................................................30
90M130 Fixed Motor SAE Mount..............................................................................................................................................32© Danfoss | November 2021

BC152886483265en-000711 | 3

Technical Information
Series 90 Axial Piston Motors
General Description
Series 90 Family of Pumps and Motors
Series 90 hydrostatic pumps and motors can be applied together or combined with other products in asystem 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 theparallel axial piston/slipper concept in conjunction with a tiltable swashplate to vary the pump's
displacement. Reversing the angle of the swashplate reverses the flow 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 flow, as
well as control fluid flow. 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 isavailable 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 fixed swashplate.
They can intake/discharge fluid through either port; they are bidirectional. They also include an optional
loop flushing feature that provides additional cooling and cleaning of fluid in the working loop.
• Series 90 – advanced technology today

•
•
•
•
•
•
•

4 | © Danfoss | November 2021

Seven sizes of variable displacement pumps
Four sizes of fixed displacement motors
SAE and cartridge mount configurations
Efficient axial piston design
Proven reliability and performance
Compact, lightweightWorldwide sales and service

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
General Description
Fixed Displacement Motor, SAE Mount
Cross section
Loop flushing valve
Valve plate

PistonRoller bearing

Output shaft

P100 490E

Fixed swashplate
Cylinder block

Name plate501829Model-No./Ident-No.

Model
Code

Model Code 90M100 NC 0 N 7 N 0 C7

Model
NumberW 00 CBA 00 00 83

Serial-No.

A - 00 - 13 - 67890

SerialNumberMade in Germany
Place of Manufacture© Danfoss | November 2021

BC152886483265en-000711 | 5

Technical Information
Series 90 Axial Piston Motors
General Description
Fixed Displacement Motor, Cartridge Mount
Cross section
Cylinder block
Charge relief valve

PistonRoller bearing

Loop flushingvalve

Outputshaft

Valve plate

P104 253E

Swashpla teName plate501829Model-No./Ident-No.

Model
Code

Model Code 90M100 NC 0 N 7 N 0 C7

Model
NumberW 00 CBA 00 00 83

Serial-No.

A - 00 - 13 - 67890

SerialNumberMade in China
Place of Manufacture

6 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
General Description
Series 90 Pictorial Circuit Diagram
The circuit diagram shows a hydrostatic transmission using a Series 90 axial piston variable displacement
pump and a Series 90 fixed displacement motor.
Control handle

Displacement control valve
Heat exchanger bypass valve
Reservoir

Orificed check
valve

Vacuum gauge
Heat exchanger

Purge relief valve

Charge pressure relief valve
Reversiblevariabledisplacement pump

Servo control cylinder

P102 000

Fixed displacement motor

Multi-function valve

To
pump
case

Servo
pressure
relief valves

Charge pump
Input shaft

Output shaft

Multi-function valve
Pump swashplate

Motor swashplate
Loop flushing valve

Servo control cylinder
Pump

Working loop (high pressure)

Motor
Working loop (low pressur e)Control fluid

Suction line

Case drain fluid

System Schematic

M3

A

A

B

B

L2

M3

M1

M1
M4
M5

M

M2
S

© Danfoss | November 2021

L2

L1

M2

P104 286E

BC152886483265en-000711 | 7

Technical Information
Series 90 Axial Piston Motors
Technical Specifications
Overview
Specifications for the Series 90 motors are listed here for quick reference. For definitions and additional
information, see Operating Parameters on page 8.
Features and Options
Motor typeIn-line, axial piston, closed loop, positive displacement motors

Direction of rotation

Bi-directional, see outline drawings for rotation vs. flow direction information

Installation position

Discretionary: Housing must be filled with hydraulic fluid

Other system requirements Independent braking system, overpressure protection, suitable reservoir, proper
filtration
Parameter

055 MF

075 MF

100 MF

130 MF

Types of mounting (SAE flange size
per SAE J744)

SAE C, cartridge

SAE C, cartridge

SAE C

SAE D

Port connections

Twin, axial

Twin, axial

Twin

Twin

Output shaft options

Spline, tapered,straight

Spline, tapered,straight

Spline, tapered,straight

SplineControl options

—

—

—

—

Loop flushing

•

•

•

•

Speed sensor

o

o

o

o

Parameter

055 MF

075 MF

100 MF

130 MF

Swashplate

Fixed

Fixed

Fixed

Fixed

Max. displacement
cm³/rev [in³/rev]

55 [3.35]

75 [4.57]

100 [6.10]

130 [7.90]

Maximum corner power kW [hp]

187 [251]

237 [318]

292 [392]

354 [475]

Theoretical torqueN•m/bar [lbf•in/1000 psi]

0.88
[530]

1.19
[730]

1.59
[970]

2.07
[1260]

Weightkg [lb]SAE

22 [49]26 [57]34 [74]45 [99]Cartridge

26 [57]33 [72]——0.0060 [0.0044]

0.0096 [0.0071]

0.0150 [0.0111]

0.0230 [0.0170]• Standardo Optional— Not available / not applicableSpecifications

Mass moment of inertiakg•m² [slug•ft²]

Operating Parameters
Parameter

Unit

055 MF

075 MF

100 MF

130 MF

Speed limits

min-1

3900

3600

3300

3100

Continuous (max. disp.)
Maximum (max. disp.)

8 | © Danfoss | November 2021

(rpm)

4250

3950

3650

3400

Continuous (min. disp.)

—

—

—

—

Maximum (min. disp.)

—

—

—

—

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Technical Specifications
Parameter
System pressure

Maximum working pressure
Maximum pressure

Unit

055 MFbar[psi]

450 [6525]

Maximum low loop

Rated (max. disp., rated speed)
Maximum (max. disp., max.
speed)

Case pressure

Maximum working pressure
Maximum (cold start)

100 MF

130 MF270 [71]

330 [87]403 [106]296 [78]365 [96]442 [117]

480 [6960]
45 [650]

Minimum low loop pressure
Flow ratings

075 MF

10 [145]l/min
215 [57][US gal/min]
234 [62]bar[psi]

3 [44]
5 [73]

Fluid Specification
Viscosity
Intermittent1)

5 mm2/s [42 SUS]

Minimum

7 mm2/s [49 SUS]

Recommended range

12 – 80 mm2/s [66 – 370 SUS]

Maximum

1600 mm2/s [7500 SUS]

1) Intermittent = Short term t < 1 min per incident and not exceeding 2 % of duty cycle based load-life.

Temperature
Minimum 1)-40°C [-40°F]

Rated

104°C [220°F]

Recommended range2)

60 – 85°C [140 – 185°F]

Maximum Intermittent

115°C [240°F]

1) Cold start = Short term t > 3 min, p ≤ 50 bar [725 psi], n ≤ 1000 min-1 (rpm).
2) At the hottest point, normally case drain port.

© Danfoss | November 2021

BC152886483265en-000711 | 9

Technical Information
Series 90 Axial Piston Motors
Operating Parameters
Input Speed
Minimum
speed

is the lowest input speed recommended during engine idle condition. Operating below
minimum speed limits the pump’s ability to maintain adequate flow for lubrication andpower transmission.

Rated speed

is the highest input speed recommended at full power condition. Operating at or
below this speed should yield satisfactory product life.
Operating conditions between rated and maximum speed should be restricted to lessthan full power and to limited periods of time.

Maximum
speed

is the highest operating speed permitted. Exceeding maximum speed reduces productlife and can cause loss of hydrostatic power and braking capacity. For most drive
systems, maximum unit speed occurs during downhill braking or negative power
conditions.

W Warning
Never exceed the maximum speed limit under any operating conditions.
During hydraulic braking and downhill conditions, the prime mover must be capable of providing
sufficient braking torque in order to avoid pump over speed. This is especially important to consider forturbo-charged and Tier 4 engines.
For more information please see Pressure and Speed Limits, BC152886484313, when determining speed
limits for a particular application.
Independent Braking System
Unintended vehicle or machine movement hazard. Exceeding maximum speed may cause a loss ofhydrostatic drive line power and braking capacity.
Machine manufacturer is responsible to provide a braking system, redundant to the hydrostatictransmission, sufficient to stop and hold the vehicle or machine in the event of hydrostatic drive power
loss. The braking system must also be sufficient to hold the machine in place when full power is applied.
System Pressure
Hydraulic unit life depends on the speed and normal operating — or weighted average — pressure thatcan only be determined from a duty cycle analysis.
System pressure is the differential pressure between high pressure system ports. It is the dominantoperating variable affecting hydraulic unit life. High system pressure, which resultsfrom high load, reduces expected life.
Applicationpressureis the high pressure relief or pressure limiter setting normally defined within theorder code of the pump. This is the applied system pressure at which the drive line
generates the maximum calculated pull or torque in the application.

Maximumworkingpressureis the highest recommended application pressure and is not intended to be acontinuous pressure. Propel systems with application pressures at, or below thispressure should yield satisfactory unit life given proper component sizing.
Application pressures above maximum working pressure will only be consideredwith duty cycle analysis and factory approval.
Pressure spikes are normal and must be considered when reviewing maximum
working pressure.

10 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Operating Parameters
Maximumpressureis the highest intermittent pressure allowed under any circumstances. Applications
with applied pressures between rated and maximum require factory approval withcomplete application, duty cycle, and life expectancy analysis.

Minimum low
loop pressuremust be maintained under all operating conditions to avoid cavitation.
All pressure limits are differential pressures referenced to low loop (charge) pressure.
Subtract low loop pressure from gauge readings to compute the differential.

Case Pressure
Under normal operating conditions, the rated case pressure must not be exceeded. During cold start casepressure must be kept below maximum intermittent case pressure. Size drain plumbing accordingly.
The auxiliary pad cavity of axial pumps configured without integral charge pumps is referenced to casepressure. Units with integral charge pumps have auxiliary mounting pad cavities referenced to charge
inlet (vacuum).
Possible component damage or leakage.
Operation with case pressure in excess of stated 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.
Temperature
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 quoted rated temperature.
The maximum intermittent 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 theability of oil to flow and transmit power; therefore temperatures should remain 16 °C [30 °F] above thepour point of the hydraulic fluid.
The minimum temperature relates to the physical properties of component materials.
Size heat exchangers to keep the fluid within these limits. Danfoss recommends testing to verify thatthese temperature limits are not exceeded.
Viscosity
For maximum efficiency and bearing life, ensure the fluid viscosity remains in the recommended 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.

© Danfoss | November 2021

BC152886483265en-000711 | 11

Technical Information
Series 90 Axial Piston Motors
System Design Parameters
Fluid and Filtration
To prevent premature wear, it is imperative that only clean fluid enter the hydrostatic transmission
circuit. A filter capable of controlling the fluid cleanliness to ISO 4406 class 22/18/13 (SAE J1165) or better
under normal operating conditions is recommended.
The filter may be located either on the inlet (suction filtration) or discharge (charge pressure filtration)side of the charge pump. The selection of a filter depends on a number of factors including thecontaminant ingression rate, the generation of contaminants in the system, the required fluid cleanliness,and the desired maintenance interval. Filters are selected to meet the above requirements using rating
parameters of efficiency and capacity.
Filter efficiency may be measured with a Beta ratio (βX).
Filter βx-ratio is a measure of filter efficiency defined by ISO 4572. It is defined as the ratio of the numberof particles greater than a given diameter (“x” in microns) upstream of the filter to the number of theseparticles downstream of the filter.
For simple suction-filtered closed circuit transmissions and open circuit transmissions with return line
filtration, a filter with a β-ratio within the range of β35-45 = 75 (β10 ≥ 2) or better has been found to besatisfactory. For some open circuit systems, and closed circuits with cylinders being supplied from thesame reservoir, a considerably higher filter efficiency is recommended. This also applies to systems withgears or clutches using a common reservoir. For these systems, a charge pressure or return filtration
system with a filter β-ratio in the range of β15-20 = 75 (β10 ≥ 10) or better is typically required.
Because each system is unique, only a thorough testing and evaluation program can fully validate thefiltration system. Please see Design Guidelines for Hydraulic Fluid Cleanliness BC152886482150, for more
information.

Independent Braking System

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 thehydrostatic transmission, sufficient to stop and hold the vehicle or machine in the event of hydrostatic
drive power loss.

Reservoir
The reservoir should be designed to accommodate maximum volume changes during all system
operating modes and to promote de-aeration of the fluid as it passes through the tank.
A suggested minimum total reservoir volume is 5/8 of the maximum charge pump flow per minute with aminimum fluid volume equal to 1/2 of the maximum charge pump flow per minute. This allows 30
seconds fluid dwell for removing entrained air at the maximum return flow. This is usually adequate toallow 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 takeadvantage 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 (fluid return) should be positioned so that flow to the reservoir is discharged below thenormal fluid level, and also directed into the interior of the reservoir for maximum dwell and efficient deaeration. A baffle (or baffles) between the reservoir inlet and outlet ports will promote de-aeration andreduce surging of the fluid.

12 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
System Design Parameters
Overpressure Protection
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 arepresent 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 inorder to limit the system pressure. For unusually rapid load application, the high pressure relief valvefunction is available to also limit the pressure level. Refer to publication Series 90 Pumps Technical
Information Manual BC152886483413 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 forextended periods of time may result in severe heat build up. High flows over relief valves may result inpressure levels exceeding the nominal valve setting and potential damage to system components.

Case Drain
A case drain line must be connected to one of the case outlets (L1 or L2) to return internal leakage andloop flushing flow to the system reservoir. The higher of the two case outlets should be used to promotecomplete filling of the case. Since case drain fluid is typically the hottest fluid in the system, it isadvantageous to return this flow through the heat exchanger.
Sizing Equations
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 toperform 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 flow source to achieve the maximum motor speed.
FormulasBased on SI units

Based on US units
Vg • n1000 • η v(l/min)Input f low Q

Output torque M =Vg • ′p • η m
20 • π(N•m)

Output torque M =Vg • ′p • η m
2•π(lbf•in)

Output power P =Q • ′p • η t
600

(kW)

Output power P =Q • ′p • η t
1714

(hp)

Input flow Q=

Motor speed n = Q • 1000 • η v (min-1(rpm))
Vg

Variables

Vg • n=Motor speed n =(US gal/min)

231 • η v

Q • 231• η v
Vg(min-1(rpm))

SI units [US units]
Vg =
pO =
pi =
′p =
n =
ηv =
ηm =
ηt =

Displacement per revolution
Outlet pressure
Inlet pressurepO – pi (system pressure)
Speed
Volumetric eff ciency
Mechanical eff ciency
Overall eff ciency (η v • η m)

cm3/rev [in3/rev]
bar [psi]bar [psi]bar [psi]
min-1 (rpm)External Shaft Loading and Bearing LifeIn vehicle propel drives with no external shaft loads where the system pressure is changing direction andmagnitude regularly and the operating parameters are within the limits, the normal L20 bearing life (80%survival) will exceed the hydraulic life of the unit.

© Danfoss | November 2021

BC152886483265en-000711 | 13

Technical Information
Series 90 Axial Piston Motors
System Design Parameters
In non-propel drives such as vibratory drives, conveyor drives or fan drives, the operating pressure isoften constant. These drives have unique duty cycles compared to a propel drive. In these types ofapplications a bearing life review is recommended.
In a bearing life analysis the following parameters are considered: Speed, pressure and external loads.
Other factors that affect life include fluid type, viscosity and cleanliness.
Shaft loading parameters
Re

Maximum radial side load

Me

Maximum external moment

L

Distance from mounting flange to point of load

Shaft loading

L
Fb

Re
Me

P108 674E

External shaft load orientation
0 Re

90 Re

End viewof shaft

270 ReAxis of swashplate
rotation

180 ReP101 433

Applications with external shaft loads
Avoid external thrust (axial) loads in either direction whenever possible. Thrust loads could reduce thebearing life in applications with low delta system pressure or when present in combination with radialloading or bending moments.
External loads are found in applications where the motor is driven with a radial load on the shaft (i.e. belt
or gear driven) as well as installations with misalignment or improper concentricity between the motorand drive coupling. All external loads will act to reduce the normal bearing life of a motor.
In applications where external radial shaft loads cannot be avoided, minimize the impact on bearing life
by orienting the load to the 180° position as shown in the figure below when possible. Use tapered
output shafts or clamped-type couplings where radial shaft loads are present.
Maximum allowable external shaft loads
Displacement

cm3

055

075

100

130

External moment Me

N•m

101

118

126

*

* No tapered shaft available

14 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
System Design Parameters
If continuous applied radial loads exceed 25% of the maximum allowable or thrust (axial) loads arepresent, contact your Danfoss representative for a bearing life evaluation.

© Danfoss | November 2021

BC152886483265en-000711 | 15

Technical Information
Series 90 Axial Piston Motors
Master Model Code

Series 90 Motors Master Model Code Breakdown
R

Size

S90

M

P

NC

0 N

J G N F
N 0

L

H

T

W

0 0

Y

Z

0 0

0 0

K

S90 Type, Size Endcap Options
R – Type
Code

Description

055

075

100

130

M

SAE Flange Mount

X

X

X

X

K

Cartridge Mount

X

X

Code

Description

055

075

100

130

X

Size
055

55 cc [3.36 in3] max displacement per revolution

075

75 cc [4.58 in3] max displacement per revolution

100

100 cc [6.10 in3] max displacement per revolution

130

130 cc [7.93 in3] max displacement per revolution

XXX

G – Endcap ports
Code

Description

055

075

100

7

Axial ports

X

X

X

8

Twin ports

X

X

X

D

Twin ports, with metric threads for the high pressure ports

X

X

X

130
X

S90 Shaft and Loop Flushing System
L – Shaft Options
Code

Description

055

075

100

C6

Splined shaft, 21 teeth, 16/32 pitch

X

X

X

C7

Splined shaft, 23 teeth, 16/32 pitch

X

X

C8

Splined shaft, 27 teeth, 16/32 pitch

F1

Splined shaft, 13 teeth, 8/16 pitch

S1

Splined shaft, 14 teeth, 12/24 pitch

X

T1

Tapered shaft, 34.925 mm diameter

X

T2

Tapered shaft, 38.1 mm diameter

130

X
X
X

X

X

X

X

H – Loop Flushing System
Code

Description

055

075

100

130

N

No loop flushing valve

X

X

X

X

W

With loop flushing valve

X

X

X

X

16 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Master Model Code
S90 Special Hardware and Loop Flushing Valve
W – Special Hardware and Loop Flushing Valve
Code

Description

055

075

100

130

EAA

Speed sensing, metri-pack connector,(KPPx12508

X

X

X

EAH

Speed sensing, 4-pin - metri-pack connector, (KPPx13808)

X

X

EAJ

Speed sensing, turck connector, (KPPG 166)

X

X

EBA

Speed sensing, weather-pack connector, (KPPx13408)

X

X

X

X

NNN

Standard special hardware features

X

X

X

X

X
X

K – Loop Flushing Valve
Code

Description

055

075

100

130

00

None, use with loop flushing option. only with H00N

X

X

X

X

A0

Cracking pressure: 13bar, Loop flushing flow: 11,5 l/min @ 25bar

X

X

X

X

A3

Cracking pressure: 13bar, Loop flushing flow: 16,0 l/min @ 25bar

X

X

X

X

E4

Cracking pressure: 16bar, Loop flushing flow: 4,0 l/min @ 25bar

X

X

X

X

E6

Cracking pressure: 16bar, Loop flushing flow: 7,0 l/min @ 25bar

X

X

X

X

F0

Cracking pressure: 16bar, Loop flushing flow: 11,5l/min @ 25bar

X

X

X

X

F3

Cracking pressure: 16bar, Loop flushing flow: 16,0l/min @ 25bar

X

X

X

X

G0

Cracking pressure: 16bar, Loop flushing flow: 22,0l/min @ 25bar

X

X

X

X

© Danfoss | November 2021

BC152886483265en-000711 | 17

Technical Information
Series 90 Axial Piston Motors
Features and Options
Loop Flushing

W Warning
Unintended vehicle or machine movement hazard.
Excessive motor loop flushing flow may result in the inability to build required system pressure in someconditions. Maintain correct charge pressure under all conditions of operation to maintain pump control
performance in hydrostatic systems.
An integral non-adjustable loop flushing valve is incorporated into Series 90 motors. Installations that
require fluid to be removed from the low pressure side of the system circuit because of coolingrequirements or contamination removal will benefit from loop flushing.
The integral loop flushing valve is equipped with an orificed charge pressure relief valve designed with acracking pressure of 16 bar [232 psi]. Valves are available with several orifice sizes to meet the flushingflow requirements of all system operating conditions.
The total system charge pump flow should be of sufficient volume to accommodate:• The number of motors in the system•••

System efficiency under worst case conditions
Pump control requirements
External needs

Although charge pump sizing requires the consideration of many system variables, the following tablegives a recommendation of what charge pump displacement may be required to accommodate theflushing flow of each available charge relief valve orifice.

18 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Features and Options
Loop flushing flow curves
16 bar cracking pressure

Low system pressure minus case pressure
bar [psi]

E4 E6

F0

F3

G0

B0

B3

H0

G3

35 [508]

25 [363]C0
15 [218]

N4 N6

A3

A0

13 bar cracking pressure
5 [73]
0

5
[1.3]

10
[2.6]

20
[5.3]

15
[4.0]

25
[6.6]

30
[8.0]

35
[9.2]

Case flow l/min [US gal/min]

40[10.6]P109278

Recommended charge pump displacement
Orifice option

Charge pump displacement

13 bar ± 8.5% cracking
pressure

16 bar ± 8.5% cracking
pressure

N4

E4

N6

E6

8 cm³ [0.49 in³]

A0

F0

11 cm³ [0.67 in³]

A3

F3

14 cm³ [0.85 in³]

B0

G0

17 or 20 cm³ [1.04 or 1.22 in³]

B3

G3

26 cm³ [1.59 in³]

C0

H034, 37, or 65 cm³ [2.07, 2.26, or 3.97 in³]

Schematic diagram of loop flushing valveA

8 cm³ [0.49 in³]

Loop flushing valve cross section

B

Loop flushingrelief valve

Loop flushing
shuttle v alve
P001 830
P101 426E

Speed Sensor
An optional speed sensor for direct measurement of speed is available. This sensor may also be used tosense 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 ofthe 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).
© Danfoss | November 2021

BC152886483265en-000711 | 19

Technical Information
Series 90 Axial Piston Motors
Features and Options
Speed Sensor

Speed sensor
Magnetic ring
Cylinder block

P101 429E

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 kHzVoltage 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 Danfoss representative for a special
sensor.
Pulse frequency

Pulse per revolution

055

075

100

130

52

58

63

69

Speed sensor with Turck® Eurofast connector

P001 492

Speed sensor with Packard® Weather-Pack connector
Red
White
Black
Green
P002 108E

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 basedon 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
20 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Features and Options
reversals. The permissible continuous torque may approach the maximum rating if the spline isimmersed in circulating oil.
Series 90 shaft options
Shaft description

Option code Torque rating

Frame size availabilityN•min•lbf

055 075 100 130

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••—

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——•—6500 2500•• Available— Not available
Recommended mating splines for Series 90 splined output shafts should be in accordance with ANSI
B92.1 Class 5. Danfoss external splines are modified class 5 fillet root side fit. The external spline major
diameter and circular tooth thickness dimensions are reduced to assure a clearance fit with the mating
spline. Contact your Danfoss representative for other splined shaft options.

© Danfoss | November 2021

BC152886483265en-000711 | 21

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
90K55 Fixed Motor Cartridge Mount
0.875 – 14 straightthread O-ring boss
case outlet port L11

41.8[1.64]

41.8[1.64]

0.5625 – 18 straightthread O-ring boss
system pressuregauge port M1 1

End cap ports
25.4 [1.00 dia.] – 6000 psi(4) bolt split flange type per
SAE J518 (Code 62)
except20.8 [0.82] minimum
full thread depth

63.7[2.51]

130.80 ± 0.023[5.150 ± 0.001]
83.14 ± 0.54
[3.273 ± 0.021]

18.8[0.74]

11.2[0.44]

0.5625 – 18 straightthread O-ring boss
system pressuregauge port M2 1

Port “A”
Port “B”

Loop flushingrelief valve

View “Z”(rear view)
axial ported
82.3[3.24]

153.7[6.05]
Ports “A”& “B”

82.3[3.24]

146.8[5.78]

View “Y”(top view)"Y"

13[0.512]

6.3[0.248]O-ring seal

Loop flushing
shuttle valve99[3.90]"Z"

108[4.25]

91.4[3.60]
ports“A”&“B”

Port “B”

Port “A”

Axial ported

51.8[2.04]

Twin ported“W”
left side view

0.5625 – 18 straight thread
O-ring boss system pressuregauge port M2 1

End cap options:View"Z"(rear view)twin ported

"X"

152.4
[6.00]

C = Twin-no loop flush
1 = Twin code 61
8 = Twin
25.4 [1.00 dia.] – 6000 psi(4) bolt split flange typeper SAE J518 (Code 62)
except 20.8 [0.82]
minimum full depth
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

159.975 ± 0.025[6.2982± 0.001]

R. 0.0 [0.0] maximum
86.4[3.40]

Port “B”

0.5625 – 18 straightspeed sensing port 1

41.78[1.645] 18.8
[0.74]
41.78[1.645]

Port “A”

114.31[4.50]

17[0.67]

0.875 – 14 straightthread O-ring boss
case outlet port L21

63.71[2.51]

View “W”(bottom view)P101 438

All SAE straight thread O-rings ports per SAE J1926 (fittings per SAE 514). Shaft rotation is determined byviewing motor from output shaft end. Contact your Danfoss representative for specific installation
drawings

22 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
Splined output shaft options
Output shaft
optionShaft diameter T Full spline
length U

Major diameter
V

Pitch diameterW

Number ofteeth 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

Flow direction

176[6.93]
35°(4) places

230[9.06]

Shaft rotation

Flow direction
Port “A”

Port “B”

Clockwise (CW)

Out

In

Counterclockwise (CCW)

In

Out

100
[3.94]

100[3.94]CCW

CW

Coupling must not
protrude beyond
this surface"U"80[3.15]
caseoutlet"V" dia.

86.1[3.39]
case outlet(alternate position)
17.1 +0.5-0.25[0.67 +0.02-0.01 ]
2 places

Port “B”"T" dia. maximum

R.2.54[R 0.10] maximum

Splined shaft option s(see tables)
Port "A"View “X”(front view)
Speed senso r connecto r
61.86[2.435]

Coupling must not protrude
beyond 58.1 [2.29] maximum
7.938 [0.3125] square key
x38.1 [1.5] long
Ø34.900[Ø1.3740]

Shaft option K1© Danfoss | November 2021

P101439

BC152886483265en-000711 | 23

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
90M55 Fixed Motor SAE Mount
41.78[1.645]41.78[1.645]0.875 – 14 straight thread
O-ring boss caseoutlet port L11

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

103.6[4.08]

7.87[0.310]0.5625 – 18 straight thread
O-ring boss per SAE J514
system pressure gauge port M1 1
11.2
[0.44]
Loop flushing relief valve
0.5625 – 18 straight thread
O-ring boss per SAE J514
system pressure gauge port M2 1

88.4
[3.48]
Port “A”

Port “B”"Y"

View “Z”(rear view)
axial ported
82.3[3.24]

228.9[9.01]
Ports “A”& “B”

82.3[3.24]

228.3[8.99]
Loop flushing
shuttle valve

View “Y”(top view)
221.7[8.73]

Approximate centerof gravity

12.7[0.50]"X"99[3.88 ]
127.0 +0.0
-0.05
[5.000 +0.000-0.002 ]3.0[0.12]"Z"
91.4[3.60]
ports“A” & “B”

"W"

Port “A”
0.5625 – 18 straight thread
O-ring boss per SAE J514
charge pressure gauge port M3 1
(to be used as gauge port only)

Port “B”

Axial ported

Twin ported

132.1[5.20]

14.7[0.58](4) places

R. 0.8 maximum[0.03]Left side view

View “Z”(rear view)twin ported

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 depthPort “A”

103.6[4.08]

View “W”(bottom view)

0.875 – 14 straightthread O-ring boss
per SAE J514 caseoutlet port L21

P101 440

All SAE straight thread O-rings ports per SAE J1926 (fittings per SAE 514). Shaft rotation is determined byviewing motor from output shaft end. Contact your Danfoss representative for specific installation
drawings

24 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
Splined output shaft options
Output shaft
optionShaft diameter T Full spline
length U

Major diameter
V

Pitch diameterW

Number ofteeth 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

Flow direction
Flow direction
Port “A”

Port “B”

Clockwise (CW)

Out

In

Counterclockwise (CCW)

In

Out

73.2
[2.88](2) places

57.25[2.254](2) places

73.9 [2.91]
case outlet

Shaft rotation

CCW

CW

84.8
[3.34]
minimum
73.2[2.88](2) places
57.25[2.254](2) places

76.2 [3.00]
case outlet
alternate position

R.7.4 ± 0.8[0.29 ± 0.03](4) places
Port “B”

Port “A”

View “X”(front view)

Approximate
center ofgravity

7.87 ± 0.381[0.310 ± 0.015]

Coupling must not
protrude beyond
this surface

47.62 ± 0.6[1.875 ± 0.025]

U ± 0.5 [± 0.02]
V dia.
T dia. maximum
R. 2.5 maximum[0.1] 2 places

Splined shaft options(see table)

Speed senso r connecto r
61.85 ± 0.64
[2.435 ± 0.025]
Coupling must not
protrude beyond
58.1 [2.29] maximum+0.0
7.938 -0.05[0.3125 +0.0
-0.002 ] square key
x38.1 [1.50] long

34.900 ± 0.025[1.3740 ± 0.0010]

Shaft option: K1(keyed)© Danfoss | November 2021

P101 44
1

BC152886483265en-000711 | 25

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
90K75 Fixed Motor Cartridge Mount
1.0625 – 12 straightthread O-ring boss
case outlet gauge
port L11
41.78[1.645]68.1[2.68]

41.78 [1.645]
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 fullthread depth

11.81[0.465]

Port "A"[1.645]

Port "B"[1.645]View "Z"(rear view)
axial ported

82.3[3.24]

21[0.83]

0.5625 – 18 straight thread
O-Ring boss system pressuregauge port M21
0.5625 – 18 straight thread
O-ring boss chargepressure gauge point M31

82.3[3.24]

106.7[4.20]
withchangerelief

0.5625 – 18 straightthread O-ringboss systempressure gauge
port M11

90.17[3.55]
withoutchangerelief140.04 ± 0.59
[5.513 ± 0.023]
92.37 ± 0.54
[3.637 ± 0.021]

Loop flushingrelief valve
View "Y"(top view)

161.7[6.37]"A" & "B"

154.8
[6.09]

Mounting flange

"Y"

96.2
[3.79]

13
6.3 [0.512][0.248]O-ring seal

Loop
flushing
shuttle
valve

97.30
[3.83]

112.5[4.43]
maximum"Z"

96.8[3.81]Ports"A" & "B"

164.6
[6.48]"X"

114[4.49]
Port "A"Port "B"

Axial ported

Twin ported"W"

View "Z"(rear view)
axial ported

189.975 ± 0.025[7.4793 ± 0.0010]

R. 0.8[0.03]Left side view

56.6
[2.23]
61.5 [2.42]
maximum

Port "B"
Endcap ports:
Options: 1 & 8
twin ported 1.00 – 6000 psi(4) bolt split flange typeper SAE J518 (Code 62)
except 20.8 [0.82]
41.78 [1.645]
minimum full thread depth

0.5625 – 18 straight thread
O-ring boss per SAE J514
shaft speed sensing port1

Option: D
41.78 [1.645]
twin ported 1.00 – 6000psi(4) bolt split flange type
21 [0.83]
per SAE J518 (Code 62)
except M12x1.75 thread 22
Port "A"[0.87] minimum full thread

68.1[2.68]
124.3[4.89]
View "W"(bottom view)19[0.75]

1.0625 – 12 straight thread
O-ring boss per SAE J514
case outlet port L21

P101 446

All SAE straight thread O-rings ports per SAE J1926 (fittings per SAE 514). Shaft rotation is determined byviewing motor from output shaft end. Contact your Danfoss representative for specific installation
drawings

26 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
Splined output shaft options
Output shaft
optionShaft
diameter T

Full spline
length U

Major
diameter V

Pitch
diameter W

Number ofteeth Y

Pitch ZS1

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]

34.42[1.355]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

Flow direction
Shaft rotation

Flow direction
Port “A”

112[4.41]

Clockwise (CW)

Out

In

Counterclockwise (CCW)

In

Out

112
[4.41]

Ø206[Ø8.11]

Ø91[Ø3.58]35°(4) places
22.2[0.87] dia.
(2) places

CCW

CW

Ø265
[Ø10.433]

View "X"(Fron t view)

Speed sensor c onnec tor

24.9[0.98]
maximum

85.3[3.36]
caseoutlet92.8[3.65]
case outlet(alternate
position)

Port "B"Port “B”

Coupling must not
protrude b eyond
this sur face
27.9
[1.10]
full spline
length31.135 ± 0.090[1.2258 ± 0.0035]
R .2.51 [0.10]
maximum

Splined shaf t options(see table)

Port "A"+0.0
9.525 -0.05
squar e key x 38.1 long
+0.0]
[0.375 -0.002[1.5]

38.075 ± 0.025[1.4990 ± 0.0010]
Coupling must not pr otrude
beyond 56.39 [2.22] maximum
Moun ting flange
referenc e

Shaft options K2(keyed)© Danfoss | November 2021

199.14 ± 0.64
[7.84 ± 0.025]

P101 447

BC152886483265en-000711 | 27

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
90M75 Fixed Motor SAE Mount
41.78[1.645]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 depthPort "A"

82.3[3.24]

0.5625 – 18 straightthread O-ring boss
system pressuregauge port M11

0.5625 – 18 straightthread O-ring boss
per SAE J514
system pressuregauge port M21

Port "B"
View "Z"(rear view)
axial ported

View "Y"(top view)

0.5625 – 18 straight thread
O-ring boss
246.1
charge pressure[9.69]
gauge port M31
Ports "A" & "B"

82.3[3.24]

113.8[4.48]

Loop flushing relief valve

11.81[0.465]97[3.82]

1.0625 – 12 straight thread
O-ring boss per SAE J514
case outlet port L11

105.8[4.16]
90.2 non-adjacent[3.55] charge relief
with out
charge relief"Y"
239[9.41]+0.0
12.7 -0.5][0.50 +0.0
-0.02

239.8
[9.44]

Approximate
center of gravity

Loopflushing
shuttle
valve

+0.00
Ø127 -0.05[Ø5.000+0.000-0.0 ]

"Z"

"X"

3.8
[0.15]

96.8[3.81]
ports"A" & "B""W"

Port "B"Port "A"View "Z"(rear view)twin ported

Axial ported

141.2[5.56]

Twin ported

14.7[0.58](4) places

R. 0.8 [0.03]
maximum

Left side view

End cap ports:
options: 1 & 8
twin ported
1.00 dia. – 6000 psi(4) bolt split
41.78
flange type per SAE[1.645]
J518 (code 62) except
20.8 [0.82] minimum
41.78
full thread depth[1.645]
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

Port "B"

208.8[8.22]

0.5625 – 18 straight thread
O-ring boss per SAE J514
shaft speed sensor port1

113.8[4.48]

Port "A"View "W"(bottom view)

1.0625 – 12 straight thread
O-ring boss per SAE J514.
case outlet (alternate
position) port L21

P101 448

All SAE straight thread O-rings ports per SAE J1926 (fittings per SAE 514). Shaft rotation is determined byviewing motor from output shaft end. Contact your Danfoss representative for specific installation
drawings
28 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
Splined output shaft options
Output shaft
optionShaft
diameterT

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]

32.5[1.28]

34.42[1.355]33.336 [1.3125] 21

16/32

C7

32.3
[1.27]

34.6[1.37]

37.59[1.460]36.513[1.4375]

16/32

23

Flow direction
Shaft rotation

57.25[2.254](2) places

Flow direction
Port “A”

Port “B”

Clockwise (CW)

Out

In

Counterclockwise (CCW)

In

Out

94
[3.70]
minimum

3.25[82.6]
caseoutlet73.2[2.88](2) places

73.2[2.88](2) places

CCW

7.87
[0.310]"U"

Coupling must not
protrude b eyond
this sur face
47.62 ± 0.64
[1.875 0.025]

CW"V" dia.

82.6[3.25]
case outlet(alternate
position)

57.25[2.254](2) places
Appr oximate
cen ter ofgravity
Port "A"Port "B"

View "X"(fron t view)
Speed sensor connector

7.4 ± 0.8
[0.29 ± 0.031](4) places"T" dia.
maximum
R.2.5 [0.10]
maximum

Splined shaf t options(see table)
61.85[2.435]

Coupling must not
protrude b eyond
2.22 maximum

38.075 ± 0.025[1.499 ± 0.001]+0.0
9.525 -0.05
squar e key x 38.1 long
[1.5]
[0.375 +0.000-0.002 ]Shaft option K2(keyed)© Danfoss | November 2021

P101449

BC152886483265en-000711 | 29

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
90M100 Fixed Motor SAE Mount
41.78[1.645]41.78[1.645]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 pressuregauge port M11

1.0625 – 12 straight thread
O-ring boss per SAE J514
case outlet port L11
128[5.04]

Loop flushing relief valve

12.95[0.510]0.5625 – 18 straightthread O-ring boss per
SAE J514 system pressuregauge port M21

104.1[4.10]
Port "A"Port "B"
View "Z"(rear view)
axial ported

92.2[3.63]

49.53[1.95]

49.53[1.95]

View "Y"(top view)

92.2[3.63]

0.5625 – 18 straightthread O-ring boss
charge pressuregauge port M31

"Y"
273.3
[10.76]
Ports "A" & "B"

109.4[4.31]
with charge
93.7
relief[3.69]
without
charge relief

265.7[10.46]

Port "B"Port "A"View "Z"(rear view)twin ported

1.0625-12
straight thread
O-ring boss per
SAE J514
auxiliary
systems ports
module E only

Approximate
center of gravity

Loopflushing
shuttle
valve

"Z"
103.6
[4.08]
ports"A" & "B"

272.3
[10.72]+0.0
12.7 -0.5[0.50 +0.00 ]
-0.02

+0.0
127 -0.05[5.00 +0.0 ]-0.002

6.4[0.25]"X"

Axial ported

Twin ported"W"

Port "B"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

153.9[6.06]

14.2[0.56](4) places

R. 0.8 [0.03]
maximum

Left side view
230.9
[9.09]

41.78[1.645]41.78[1.645]
Port "A"
1.0625 – 12 straightthread O-ring boss
per SAE J514 caseoutlet port L21

128[5.04]
View "W"(bottom view)P101 454

All SAE straight thread O-rings ports per SAE J1926 (fittings per SAE 514). Shaft rotation is determined byviewing motor from output shaft end. Contact your Danfoss representative for specific installation
drawings

30 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
Splined output shaft options
Outputshaft
optionshaft diameter Full splineTlength U

Major
diameter V

Pitch diameter Number ofWteeth 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

73.2
[2.88](2) places

57.25[2.254](2) places

7.87[0.31]

Ø100.6[Ø3.96]minimum
95[3.74]
caseoutletCoupling must not
protrude b eyond
this sur face"S"± 0.64 [± 0.025]"U"±0.5 [± 0.02]

CCW

CW

73.2
[2.88](2) places"F" maximum
Ø"V"± 0.09 [± 0.0035]

57.25[2.254](2) places

92.2[3.63]
case outlet(alternative position)"T" dia.
maximum

R.7.37 ± 0.76
[0.29 ± 0.03](4) places
Port "B"Port "A"View "X"(fron t view)

Speed sensor c onnec tor

Appr oximate
cen ter ofgravity"E" thread

R.2.5 [0.10]
maximum

Splined shaf t options(see char t)

61.85 ± 0.64
[2.435 ± 0.025]
Coupling must not
protrude b eyond
2.33 maximum

44.425 ± 0.025[1.749 ± 0.001]
9.525 +0.0
-0.05 squar e key x 38.1 long
+0.0
[0.375 -0.002][1.5]

Shaft option K3(keyed)© Danfoss | November 2021

P101 455

BC152886483265en-000711 | 31

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
90M130 Fixed Motor SAE Mount

e

B

L

A

0.5625 – 18 straightthread O-ring boss
system pressuregauge port M11

0.5625 – 18 straightthread O-ring boss
system pressuregauge port M21

0.5625 – 18 straightthread O-ring boss per
SAE J514 charge pressuregauge port M31 (to be
used as gauge port only)

146[5.75]
both sides

View "Y"(top view)Lshuttle valve

1.3125 – 12 straightthread O-ring boss
case outlet Port L11"Y"
R. 0.8 [0.03] maximum

117.3[4.62]
with charge
relief96.5[3.80]
case drainboth sides

107.9[4.25]
without
charge relief+0.0
152.4 -0.05+0.0 dia.][6.000 -0.002

"Z"

"X"

111.8
[4.40]
split

104.2[4.10]"W"

104.2[4.10]Left side view

View "Z"(rear view)

12.7[0.50]
17.4[0.69](4) places

298.6[11.76]259[10.20]Port "B"B

51.9[2.043](2) places
A

Port "A"P101456
End cap ports
boss1 per SAE J518 (Code 62)
1/2-13UNC-2B except 23.6
View "W"[0.93] minimum full thread (bottom view)

1.3125 – 12 straightthread O-ring boss
per SAE J514 case outlet
port L21 (optional shaft
speed sensor location)

All SAE straight thread O-rings ports per SAE J1926 (fittings per SAE 514). Shaft rotation is determined byviewing motor from output shaft end. Contact your Danfoss representative for specific installation
drawings

32 | © Danfoss | November 2021

BC152886483265en-000711

Technical Information
Series 90 Axial Piston Motors
Installation Drawings
Splined output shaft options
Output shaft
optionShaft diameter Full splineTlengthU

Major diameter Pitch diameter W Number Pitch LengthVof teeth Z
S
Y

F1

34.5
[1.36]

42.5[1.67]

43.94[1.730]41.275[1.6250]

13

8/16

C8

37.5
[1.48]

42.5[1.67]

43.94[13730]42.862[1.6875]27

16/32 66.7
[2.625]66.7[2.625]

Flow direction
Shaft rotation

Flow direction
Port “A”

Port “B”

Clockwise (CW)

Out

In

Counterclockwise (CCW)

In

Out

Ø113
[Ø4.45]minimum

100[3.94](2) places

80.8[3.181](2) places
R. 10.5± 0.6[0.41 ± 0.02](4) places

80.8[3.181](4) places
CCW

CW

Coupling must not pr otrude
beyond this sur face
7.9
[0.310]R.0.8 [0.03]
maximum"S""U""T" Dia.
maximum"V" Dia.

100.0[3.94](2) Places

R.2.3 [0.09] maximum

Splined shaf t options(see table)
P101 868

All SAE straight thread O-rings ports per SAE J1926 (fittings per SAE 514). Shaft rotation is determined byviewing motor from output shaft end. Contact your Danfoss representative for specific installation
drawings.

© Danfoss | November 2021

BC152886483265en-000711 | 33

Products we offer:

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

Cartridge valves
DCV directional control
valvesElectric converters
Electric machines

Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic andelectric components. We specialize in providing state-of-the-art technology and solutions
that excel in the harsh operating conditions of the mobile off-highway market as well as themarine sector. Building on our extensive applications expertise, we work closely with you toensure exceptional performance for a broad range of applications. We help you and othercustomers around the world speed up system development, reduce costs and bring vehicles
and vessels to market faster.

Gear motors

Danfoss Power Solutions – your strongest partner in mobile hydraulics and mobile
electrification.

Gear pumps

Go to www.danfoss.com for further product information.

Hydraulic integrated
circuits (HICs)
Hydrostatic motors

We offer you expert worldwide support for ensuring the best possible solutions foroutstanding performance. And with an extensive network of Global Service Partners, we also
provide you with comprehensive global service for all of our components.

Electric motors

Hydrostatic pumps
Orbital motors
PLUS+1® controllers
PLUS+1® displays
PLUS+1® joysticks andpedals
PLUS+1® operator
interfaces
PLUS+1® sensors
PLUS+1® software
PLUS+1® software services,support and training
Position controls andsensors
PVG proportional valves
Steering components andsystems
Telematics

Local address:

Hydro-Gear
www.hydro-gear.com
Daikin-Sauer-Danfoss
www.daikin-sauer-danfoss.com

Danfoss
Power Solutions (US) Company
2800 East 13th Street
Ames, IA 50010, USA
Phone: +1 515 239 6000

Danfoss
Power Solutions GmbH & Co. OHG
Krokamp 35
D-24539 Neumünster, Germany
Phone: +49 4321 871 0

Danfoss
Power Solutions ApS
Nordborgvej 81
DK-6430 Nordborg, Denmark
Phone: +45 7488 2222

Danfoss
Power Solutions Trading(Shanghai) Co., Ltd.
Building #22, No. 1000 Jin Hai Rd
Jin Qiao, Pudong New District
Shanghai, China 201206
Phone: +86 21 2080 6201

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

© Danfoss | November 2021

BC152886483265en-000711