Axial Piston Motors

Series 20Axial Piston Motors

Technical Information

Series20_Axial Piston Motors_TI_012002.indd 11.2.2002, 12:231

2 DKMH.PN.340.C1.02 520L0516

Series 20 – Axial Piston MotorsTechnical InformationGeneral Description

INTRODUCTION

DESCRIPTION

TYPICAL MARKETS

Sauer-Danfoss a world leader in hydraulic power systems has developed a family of axial piston motors.

Sauer-Danfoss axial pistons fixed displacement motors are of swash plate design with preset displacement suitable for hydrostatic transmissions with closed loop circuit.The output speed is proportional to the motor’s input flow.The output torque is proportional to the differential pressure applied to the main pressure ports.The direction of motor (output) shaft rotation depends on flow input to the main pressure ports.

Sauer-Danfoss axial piston fixed displacement motors are well engineered and easy to handle.The full-length shaft with a highly efficient tapered roller bearing arrangement offers a high loading capacity for external radial forces.High case pressures can be achieved without leakage even at the lowest temperatures by using suitable shaft seals.Sauer-Danfoss axial piston units are designed for easy servicing. Complete dismantling and reassembly can be carried out with standard hand tools, and all components or sub-assemblies are replaceable.Axial piston fixed displacement motors of the Sauer-Danfoss pattern are made by licensed producers worldwide, providing consistent service and fully inter-changeable parts.

• Industrial• Mining• Transit Mixer• Utility Vehicles

© 1999 -2001, Sauer-Danfoss

Sauer-Danfoss can accept no responsibility for possible errors in catalogues, 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 can be made without subsequent changes being necessary in specifications already agreed. All trademarks in this material are properties of the respective companies. Sauer-Danfoss and the Sauer-Danfoss logotype are trademarks of the Sauer-Danfoss Group. All rights reserved.

Front page: F000 234, F000 249, F000 150, F000 248

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3DKMH.PN.340.C1.02 520L0516

Series 20 – Axial Piston MotorsTechnical InformationContents

CONTENTS General description ...................................................................................................................................................... 2Introduction ................................................................................................................................................................. 2Description ................................................................................................................................................................... 2Typical Markets ........................................................................................................................................................... 2

Sectional view ................................................................................................................................................................. 4Axial piston fixed displacement motor .............................................................................................................. 4

System circuit description ......................................................................................................................................... 5Pump and motor circuit description ................................................................................................................... 5Motor circuit schematic ........................................................................................................................................... 5

Technical specification ................................................................................................................................................ 6Technical parameters ................................................................................................................................................ 6

Design .............................................................................................................................................................................................. 6

Type of mounting ........................................................................................................................................................................ 6

Pipe connections ......................................................................................................................................................................... 6

Direction of rotation ................................................................................................................................................................... 6

Installation position .................................................................................................................................................................... 6

External drain fluid loss ............................................................................................................................................................. 6

Hydraulic parameters ............................................................................................................................................... 7System pressure range, input p

1 ............................................................................................................................................. 7

System pressure range, output p2 .......................................................................................................................................... 7

Case pressure ................................................................................................................................................................................ 7

Hydraulic fluid ............................................................................................................................................................................... 7

Hydraulic fluid temperature range ........................................................................................................................................ 7

Viscosity range .............................................................................................................................................................................. 7

Filtration .......................................................................................................................................................................................... 7

Shaft load ....................................................................................................................................................................................... 7

Technical data ............................................................................................................................................................................... 8

Determination of nominal motor size .................................................................................................................................. 8

Dimensions – Frame size 033, 052, 070, 089 and 119 cm3 ........................................................................ 10Outline drawing, configuration MS ................................................................................................................... 10Outline drawing, basic model ............................................................................................................................. 14Outline drawing, motor configuration AM 01000 ....................................................................................... 14Outline drawing, motor configuration MR ..................................................................................................... 15Circuit diagrams ....................................................................................................................................................... 16

Dimensions – Frame size 166, 227 and 334 cm3 ............................................................................................ 18Outline drawing, configuration MS ................................................................................................................... 18


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Series 20 – Axial Piston MotorsTechnical InformationSectional View

P005 118E

AXIAL PISTON FIXED DISPLACEMENT MOTOR


5DKMH.PN.340.C1.02 520L0516

Series 20 – Axial Piston MotorsTechnical InformationSystem Circuit Description

PUMP AND MOTOR CIRCUIT DESCRIPTION

MOTOR CIRCUIT SCHEMATIC

HEAT EXCHANGER BYPASS VALVE

RESERVOIR

VACUUM GAUGE

HEAT EXCHANGER

OUTPUT SHAFT

MOTOR SWASHPLATE

FIXEDDISPLACEMENT MOTOR

LOOP FLUSHING VALVE

PURGE RELIEF VALVE

CHARGE PRESSURERELIEF VALVE

SERVOPRESSURERELIEF VALVES

SERVO CONTROL CYLINDER

SERVO CONTROL CYLINDER

PUMP SWASHPLATE

REVERSIBLE VARIABLEDISPLACEMENT PUMP

CONTROL HANDLE

INPUT SHAFT

WORKING LOOP (LOW PRESSURE) SUCTION LINE CASE DRAIN FLUIDCONTROL FLUIDWORKING LOOP (HIGH PRESSURE)

P000 027E

Designation:1 = Fixed displacement motor2 = Purge relief valve3 = Shuttle valve4 = High pressure relief valve

Ports:A, B = Main pressure ports (working loop)L

1, L

2 = Drain ports

MA = Gauge port for port A

MB = Gauge port for port B

M = Gauge port - charge pressure

A

BL1

L2

M MB

MA

1

4

4

23

P000 034

Above figure shows schematically the function of a hydrostatic transmission using an axial piston variable displacement pump and a fixed displacement motor.


6 DKMH.PN.340.C1.02 520L0516

Series 20 – Axial Piston MotorsTechnical InformationTechnical Specification

TECHNICAL PARAMETERS DesignAxial piston motor with fixed displacement and swash plate design.

Type of mountingSAE four bolt flanges.

Pipe connectionsMain pressure ports: SAE split flangeRemaining ports: SAE O-ring boss

Direction of rotation and flowClockwise or counterclockwise (viewing from the output shaft).

Direction of rotation Port A Port B Clockwise (R) Output Input

Counterclockwise (L) Input Output

Installation positionOptional; motor housing must be always filled with hydraulic fluid.

External drain fluid loss

P005 105E

Driveshaft speed n (min-1) (rpm)

Exte

rnal

dra

in fl

uid

loss

(l/m

in)

Typical values for 350 bar [5076 psi]and 18˚ swashplate angle

1000 2000 3000 400000

4

8

12

16

20

24

28334

089

070052

033

(US

gal

/min

)

0

1

2

3

4

5

6

7

227

166

119


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Series 20 – Axial Piston MotorsTechnical Information

HYDRAULIC PARAMETERS

System pressure range, input p1

Pressure on port A or B:

Max. operating pressure ∆p = 420 bar [6092 psi]Max. high pressure setting ∆p = 460 bar1 [6672 psi] 1only with POR-valve

System pressure range, output p2

Normal setting for configuration MS and MR: 11.0 - 12.5 bar [160 - 181 psi] above case pressure.

Minimum: 8 bar, intermittent only

Case pressureMax. rated pressure = 2.5 bar [36.3 psi]Intermittent = 5.0 bar [72.5 psi]

Hydraulic fluidRefer to Sauer-Danfoss publication Hydraulic Fluids and Lubricants and Experience with Bio Fluids for biodegradable hydraulic fluids.

Hydraulic fluid temperature rangeϑmin = - 40 °C [- 40 °F]ϑmax = 95 °C [203 °F]

Viscosity rangeνmin = 7 mm2/s [49 SUS*]νmax = 1000 mm2/s [4630 SUS*] (intermittent cold start)Recommended viscosity range: 12 - 60 mm2/s [66 - 278 SUS*]

*SUS (Saybolt Universal Second)

FiltrationRequired cleanliness level: ISO 4406-1999 Code 22/18/13 or better. Refer to Sauer-Danfoss publication Hydraulic Fluids and Lubricants and Design Guideline for Hydraulic Fluid Cleanliness.

Shaft loadThe pump will accept radial and axial loads on its shaft, the maximum capacity being determined by direction and point of application of the load. Please contact your Sauer-Danfoss representative.

Technical Specification


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Series 20 – Axial Piston MotorsTechnical InformationTechnical Specification

HYDRAULIC PARAMETERS (continued)

Technical data Dimension Frame size

033 052 070 089 119 166 227 334

Max. displacement cm3 33.3 51.6 69.8 89.0 118.7 165.8 227.3 333.7

[in3] [2.03] [3.15] [4.26] [5.43] [7.24] [10.12] [13.87] [20.36]

Rated speed 1 min-1 (rpm) 3800 3500 3200 2900 2700 2400 2100 1900

Theoretical torque Nm/bar 0.53 0.82 1.11 1.42 1.89 2.64 3.62 5.31

[in lb/1000 psi] [323] [500] [677] [867] [1153] [1611] [2209] [3240]

Mass moment of inertia kg m2 • 10 -3 4.34 8.14 12.34 17.77 29.11 50.19 86.80 161.40

of rotating group [lbf•ft2 • 10 -3] [103.0] [193.2] [292.8] [421.7] [690.8] [1191.0] [2059.8] [3830.0]

1 for higher speeds contact your Sauer-Danfoss representative

Determination of nominal motor size

Unit: Metric System: Inch System

Vg • n

V

g • n

Input flow Qe = l/min Q

e = [gpm]

1000 • ηv 231 • η

v

Vg • ∆p • η

m V

g • ∆p • η

mOutput torque Me = Nm M

e = [lbf•in]

20 • π

2 • π Q

e • ∆p • η

t V

g • n • ∆p • η

tOutput power Pe = kW P

e = [hp]

600 396 000

Qe • 1000 • η

v Q

e • 231 • η

vSpeed n = min-1 n = (rpm) V

g V

g

Efficiency characteristic curves available on request.

Vg

= Moror displacement per revolution cm3 [in3]n = Motor speed min-1 (rpm)∆p = Hydraulic pressure differential bar [psid] ∆p = p

HD - p

ND

ηv

= Moror volumetric efficiencyη

m = Moror mechanical efficiency

ηt

= Moror total efficiencyp

HD = High pressure bar [psid]

pND

= Low pressure bar [psid]


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Series 20 – Axial Piston MotorsTechnical InformationNotes


10 DKMH.PN.340.C1.02 520L0516

Series 20 – Axial Piston MotorsTechnical InformationDimensions – Frame Size 033, 052, 070, 089 and 119 cm3

K

J

E

Coupling may not protrudebeyond L mm maximumlenght of full spline

Port "L1": Case drain port(use highest port as outlet)

Approx. centreof gravity

26.2

Purge relief valve

Shuttle valve(both sides)

Port "A"

Port "L2":Case drain port

M

12.45±0.24

D

C

B

A

Shaft spline data: *Pitch Ø = SPressure angle = 30˚Number of teeth = TPitch = U

XØ

N -0

.05

Ø O Ø P

Ø R

FF G

Ø H

52.4 Y

P000 567E

View YFlange design2/070

Gauge port "MA"

Port "A"

High pressure reliefvalve for port "B"

VPort "A"

VPort "B"

219

High pressure reliefvalve for port "A"

Port "B"

Gauge port "M"charge pressure

Gauge port "MB"

P005 101E

OUTLINE DRAWING, CONFIGURATION MS

* Shaft spline data: spline shaft with involute spline, according to SAE handbook, 1963, class 1, fillet root side fit.

Frame size Port A and B Port L1 and L

2 Port M

A and M

B Port M

033 SAE flange, size 1

052 SAE split flange boss 7/8-14 UNF-2B 7/16-20 UNF-2B

070

5000 psi SAE straight thread SAE straight thread

4 threads O-ring boss O-ring boss

089 3/8-16 UNC-2B

119 18 deep


11DKMH.PN.340.C1.02 520L0516


OUTLINE DRAWING, CONFIGURATION MS (continued)

124

W

156

146

Ø162

190

Ø15+ 0.8– 0.3

Rotation

L R 45˚


View X (for SMF 2/033 - 2/052 only)

P005 102E

W

45˚

Ø162

Ø15+ 0.8– 0.3

Rotation

L R


P005 119E

View X (for SMF 2/070 only)

168

168

142.

8

Ø19

3.5


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170

203

45˚

213

Ø229

Ø21.3 + 0.8– 0.3

Rotation

L R



P005 103E

Dimensions – Frame Size 033, 052, 070, 089 and 119 cm3


Ø162

Rotation

L R


Ø15+ 0,8– 0,3

168

156

168


45˚ W

P005 120


13DKMH.PN.340.C1.02 520L0516



Dimensions Frame

A mm

B mm

C mm

D mm

E mm

F mm

G mm ∅ H

mm J mm

K mm

L mm

M mm

size [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in] [in]

033

340 252 214 156 89 70.6 82 140 16 56 48 28.4

[13.386] [9.921] [8.425] [6.142] [3.504] [2.780] [3.228] [5.512] [0.630] [2.205] [1.890] [1.118]

052

358 270 235 160 96 76 88 154 16 56 48 28.4

[14.094] [10.630] [9.252] [6.299] [3.780] [2.992] [3.465] [6.063] [0.630] [2.205] [1.890] [1.118]

070

378 290 255 165 108 86.5 98 161 16 56 48 28.4

[14.882] [11.417] [10.039] [6.496] [4.252] [3.406] [3.858] [6.339] [0.630] [2.205] [1.890] [1.118]

089

395 307 273 170 118 96.0 107 181 18 56 48 28.4

[15.551] [12.087] [10.748] [6.693] [4.646] [3.780] [4.213] [7.126] [0.709] [2.205] [1.890] [1.118]

119

442 354 295 175 125 98.2 109 200 25 75 67 38.4

[17.402] [13.937] [11.614] [6.890] [4.921] [3.866] [4.291] [7.874] [0.984] [2.953] [2.638] [1.512]

Frame ∅ N mm ∅ O

mm ∅ P mm ∅ R

mm ∅ S mm

T mm

U mm

V mm

W mm Diameter for mm

Weight kg

size [in] [in] [in] [in] [in] [in] [in] [in] [in] shaft coupling [in] [lb]

033

127 84 34.50 -0.17

8.5 33.338 21 16/32

81 92 31.75 +0.062 30

[5.000] [3.307] [1.358 -0.0067

] [0.335] [1.313] [0.827] [3.189] [3.622] [1.250 +0.0024] [66]

052

127 84 34.50 -0.17

8.5 33.338 21 16/32

85.8 96 31.75 +0.062 35

[5.000] [3.307] [1.358 -0.0067

] [0.335] [1.313] [0.827] [3.378] [3.780] [1.250 +0.0024] [77]

070

127 84 34.50 -0.17

8.5 33.338 21 16/32

85.8 101 31.75 +0.062 40

[5.000] [3.307] [1.358 -0.0067

] [0.335] [1.313] [0.827] [3.378] [3.976] [1.250 +0.0024] [88]

089

127 98 37.68 -0.17

8.5 36.513 23 16/32

95.2 114 34.95 +0.062 47

[5.000] [3.858] [1.483 -0.0067

] [0.335] [1.438] [0.906] [3.748] [4.488] [1.376 +0.0024] [104]

119

152.4 98 44.03 -0.17

11.8 42.863 27 16/32

106.5 –

41.28 +0.062 70

[6.000] [3.858] [1.733 -0.0067

] [0.465] [1.688] [1.063] [4.193] [1.625 +0.0024] [154]


14 DKMH.PN.340.C1.02 520L0516


OUTLINE DRAWING, BASIC MODEL

OUTLINE DRAWING, MOTOR CONFIGURATION AM 01000

Dimensions Frame size A mm [in] B mm [in] C mm [in] D mm [in] Weight kg [lb]

033 252 [9.921] 25 [0.984] 11 [0.433] – 24 [53]

052 270 [10.630] 32 [1.260] 9 [0.354] 29 [64]

070 290 [11.417] 30 [1.181] 12 [0.472] 2 [0.079] 34 [75]

089 307 [12.087] 44 [1.732] 6 [0.236] 41 [90]

119 354 [13.937] 37 [1.457] 10 [0.394] 64 [141]

For further dimensions see previous pages.

1 Light weight and short options available on request


Dimensions – Frame Size 033, 052, 070, 089 and 119 cm3

P000 568E

CA B

A

D

B

Return from purge reliefvalve to motor case R3/4

P000 569E

12

A B

A

1.5

25

Return from purgerelief valve to motorcase 7/8 - 14 UNF - 2B

100

110

Dimensions Frame size A mm [in] Weight 1 kg [lb]

033 277 [10.905] 26 [57]

052 295 [11.614] 31 [68]

070 315 [12.402] 36 [79]

089 332 [13.071] 43 [95]

119 379 [14.921] 66 [146]


15DKMH.PN.340.C1.02 520L0516


OUTLINE DRAWING, MOTOR CONFIGURATION MR

A

ABypass - handle

Purge relief valve


B

129.

4 ±

0.2

5

Gauge port "MA"

Port "A"



Port "B"


Gauge port "MB"

58.55

50.8

41.28

25.4

3 x Ø 6.5

19.0

5

Bypass valveopened

Partial View A-A

Bypass valveclosed

90˚

90˚

P005 104E

Dimensions

Frame size

A mm

B mm Weight kg

Port MA and M

B Port M

[in] [in] [lb]

033

388 353 32

[15.276] [13.898] [71]

052

406 371 37

[15.984] [14.606] [82]

070

426 391 42 7/16-20 UNF-2B

[16.772] [15.394] [93] SAE straight thread O-ring boss

089

443 408 49

[17.441] [16.063] [108]

119

490 455 72

[19.291] [17.913] [159]



16 DKMH.PN.340.C1.02 520L0516


CIRCUIT DIADRAMS Configuration MR

Basic model and motor configuration AM 01000

A

B

L1

L2

M MB

MA

1

4

5

4

2

3

P000 035

A

B

L2

L1

1

Return from purge reliefvalve to motor case

P000 038E

Designation:1 = Fixed displacement motor2 = Purge relief valve3 = Shuttle valve4 = High pressure relief valve5 = Bypass valve

Ports:A,B = Main pressure ports (working loop)L

1, L

2 = Drain ports

MA = Gauge port for port A

MB = Gauge port for port B

M

= Gauge port - charge pressure


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Series 20 – Axial Piston MotorsTechnical InformationNotes


18 DKMH.PN.340.C1.02 520L0516

Series 20 – Axial Piston MotorsTechnical InformationDimensions – Frame Size 166, 227 and 334 cm3

View Y View X

Gauge port "MA"

Port "A"


VPort "A"

VPort "B"

Z


Port "B"


Gauge port "MB"

Rotation

L R


AA

45˚

CC

Y

X W

BB

P005 100E-2

OUTLINE DRAWING, CONFIGURATION MS

* Shaft spline data: spline shaft with involute spline, according to SAE handbook, 1963, class 1, fillet root side fit.

77

J

E

Coupling may not protrudebeyond L mm maximumlenght of full spline

Port "L1": Case drain port(use highest port as outlet)


36.5

Purge relief valve


Port "A"

Port "L2":Case drain port

M

12.45±0.24

D

C

B

A

Shaft spline data: *Pitch Ø = SPressure angle = 30˚Number of teeth = TPitch = U

X Ø N

-0.0

5

Ø O

Ø P

Ø R

FF G

Ø H

79.4

Y

P005 100E-1


19DKMH.PN.340.C1.02 520L0516



Dimensions

Frame size A mm

B mm

C mm

D mm

E mm

F mm

G mm ∅ H

mm J mm

[in] [in] [in] [in] [in] [in] [in] [in] [in]

166

467 388 331 219 136 122.2 136 229 24

[18.740] [15.276] [13.031] [8.622] [5.354] [4.811] [5.354] [9.016] [0.945]

227

498 410 346 228.5 139.7 134.9 152 264 27

[19.606] [16.142] [13.622] [8.996] [5.500] [5.311] [5.984] [10.394] [1.063]

334

537 449 389 278 154 143.5 161 292 38

[21.142] [17.677] [15.315] [10.945] [6.063] [5.650] [6.339] [11.496] [1.496]

Frame size M

mm ∅ N mm ∅ O

mm ∅ P mm ∅ R

mm ∅ S mm

T mm

U V mm

[in] [in] [in] [in] [in] [in] [in] [in]

166

38.4 165.1 98 44.03 - 0.17

11.80 42.863 27 16/32

130.0

[1.512] [6.500] [3.858] [1.733 - 0.0067

] [0.465] [1.688] [1.063] [5.118]

227

38.4 165.1 110 44.03 - 0.17

11.80 42.863 27 16/32

143.7

[1.512] [6.500] [4.331] [1.733 - 0.0067

] [0.465] [1.688] [1.063] [5.657]

334

46.2 177.8 114 64.66 - 0.16

14.35 63.500 40 16/32

158.7

[1.819] [7.000] [4.488] [2.546 - 0.0063

] [0.565] [2.500] [1.575] [6.248]

Frame size W

mm X

mm Y

mm Z

mm AA

mm BB

mm CC

mm Diameter for Weight

kg

[in] [in] [in] [in] [in] [in] [in] shaft coupling [lb]

166

148 145 254 285 317.5 20.6 ± 0.4 6 41.28 + 0.062 124

[5.827] [5.709] [10.000] [11.220] [12.500] [0.811 ± 0.0157] [0.236] [1.625 + 0.0024] [273]

227

156 160 265 265 317.5 20.6 ± 0.4 13 41.28 + 0.062 152

[6.142] [6.299] [10.433] [10.433] [12.500] [0.811 ± 0.0157] [0.512] [1.625 + 0.0024] [335]

334

176 174 298 298 350.0 27.0 + 0.5 18 61.93 + 0.074 197

[6.929] [6.850] [11.732] [11.732] [13.780] [1.063 + 0.0197] [0.709] [2.438 + 0.0029] [434]

Frame size Port A and B Port L1 and L

2 Port M

A and M

B Port M

1 5/16 -12 UN - 2B

166 SAE flange, size 1 1/2 SAE straight thread

SAE split flange boss O-ring boss 7/16-20 UNF-2B

6000 psi SAE straight thread

227

4 threads 1 7/8 -12 UN - 2B O-ring boss

5/8 -11 UNC - 2B SAE straight thread

334

35 deep O-ring boss

Dimensions – Frame Size 166, 227 and 334 cm3

- 0.1

- 0.0039


Sauer-Danfoss Hydraulic Power Systems– Market Leaders Worldwide

Sauer-Danfoss is a comprehensive supplier providing complete systems to the global mobile market.

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We offer our customers optimum solutions for their needs and develop new products and systems in close cooperation and partnership with them.

Sauer-Danfoss specializes in integrating a full range of system components to provide vehicle designers with the most advanced total system design.

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Sauer-Danfoss (US) Company2800 East 13th StreetAmes, IA 50010, USAPhone: +1 515 239-6000, Fax: +1 515 239 6618

Sauer-Danfoss (Neumünster) GmbH & Co. OHGPostfach 2460, D-24531 NeumünsterKrokamp 35, D-24539 Neumünster, GermanyPhone +49 4321 871-0, Fax: +49 4321 871 122

Sauer-Danfoss (Nordborg) A/SDK-6430 Nordborg, DenmarkPhone: +45 7488 4444, Fax: +45 7488 4400

www.sauer-danfoss.com

OUR PRODUCTS

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DKMH.PN.340.C1.02 520L0516

Series20_Axial Piston Motors_TI_012002.indd 11.2.2002, 12:2420

Axial Piston Motors

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