Re 15190

1/24

RE15 190/02.92Replaces: 10.90

RE 15 190/10.90

Sizes 11 to 160 up to 315 bar up to 161 cm3 up to 750 Nm

wide speed range

control plate with backlash compensation

smooth rotation even at very low speeds

extremely small moment of inertia permitting high reversalfrequency

very suitable for control applications

suitable for fire resistant fluids

very low operating noise level

model with:shaft for tachometerthrough shaftbuilt-on valvesbrake (on request)

Hydraulic Motor (Radial Piston)Type MKM/MRM, Series 1X

Type MKM 40 AZ 1X/M1 A0


Type MRM 160 AZ 1X/M1 A0


Index of ContentsDescription PageFunctional description, Section, Symbols 2Survey of types of motor, characteristics 3Order data 4Technical data 5Bearing life, shaft strength 6Performance curves 7 to 11Feed pressure during pump operation 12Unit measurements:

MKM 11 13MKM 20, 40 14MKM 32, 63, 90, 110 15MRM 80, 125 16MRM 160 17MRM 80, 125, 160-SAE 18Shaft for tachometer, 2nd shaft end 19Valve, plates structure 20 to 24

2/24

A

B L

A

B L

A

B L

X

X

A/B

L

RE 15 190/10.90

Functional Description, Section

Type MKM and MRM hydraulic motors are constant displace-ment external radial piston motors.

StructureThe chief components are housing (1), crankshaft (2), cover(3), locking cover (4), tapered roller bearings (5), pistons (6),control (7).

Transmission detailsThe radial pistons (6) act on the crankshaft (2) via needlebearings (9) or via heptagonal rings with needle bearings.Crankshaft bearings:pre-stressed, generously-proportioned tapered roller bearings(5) with inner rings facing.Power transmission pistons (6) - crankshaft (2):Via needle bearings (9) (or heptagon ring with needlebearings Low friction losses, very long life, not sensitive tocontamination, also suitable for maximum pressures andmotor speeds, high starting torque, no stick/slip at low motorspeeds, minimal leakage and high efficiency.

Fluid operating medium, feed and returnThe fluid is supplied to and carried away from the motor byway of ports A or B. The cylinder chambers (E) are filled oremptied by way of the control and the channels (D) in thehousing (1).

Torque generation; operating strokeThe fluid medium in the cylinder chambers (E), which are atpresent connected to the supply, is placed under pressure.The pistons (6) are pushed from outside (external loading) onto the crankshaft eccentric (operating stroke) and the cranks-haft rotates.

1

4D3

C81H 552E

Detail X-X9 6 7

G

F

Return of fluid mediumThe pistons (6), which are again pushed outwards by therotation of the crankshaft (2) eccentric, expel the fluid fromthe cylinder chambers (E) which are at present connected tothe return flow line.

ControlConstruction:Flat distributor plate with radial movement and pressurecompensation to counter internal leakage and backlash-compensating seal against external leakage.Purpose:Distribution of incoming volumetric flow to the cylinderchambers, collection of return volumetric flow.Operating principle:The control plate (7) incorporates an inner annular area (F)and forms with the annulus (8) an external annular chamber(G). By offsetting the control plate (7) radially between themotor housing (1) and locking cover (4) with the help of theeccentric which is connected firmly relative to the crankshaft(2) in the inner and the outer annular areas are alternatelybrought into contact with the cylinders. The annular areasthemselves open out into ports A or B on the outside.

LeakagesLeakages occurring at pistons (6) and control (7) are collec-ted up in the motor casing (H) and discharged via drain port(C).

with 1st shaft end with 2nd shaft end with brake (on request)

Symbols

3/24

Transmission5 or 10 radially arranged pistons

power transmission piston - crankshaft: by means of hydrostatically balanced pistons and pentagonal ring with needle bearings

ControlRoller bearings between control rings and eccentric

Flat distributor with radial movement and backlash compensation

Hydrostatic contact with spring back-up between controlrings and flat surfaces

Hydrostatic backlash compensation at eccentric flat surfaces, with spring back-up

Reliable backlash compensation even at high reversing frequencies

Only very slight leakage with minimal friction losses

Miniaturised change-over valve: ensures that it is always the higher of the pressures in the vicinity of the motor which is present in the annular area between the control rings.

Motor types Caracteristics

A/B

L

L

MKM

MRM

Transmission7, 14 or 21 radial arrangement pistons

Power transmission piston - crankshaft: by means of pistonsia needle bearings or heptagonal ring with needle bearings

Controlneedle bearings between control plate and eccentric.

flat distributor with radial movement and balanced sealing toreduce leakage.

hydrostatic contact pressure plate with spring back-up.

reduction in external leakage with minimal friction losses

B A

RE 15 190/10.90

4/24

RE 15 190/02.92

M 1X*

furter informationin clear text

e. g. brakes/gear unittacho/valves

Built-on valves/manifolds(only in conjunction with

A1 line)No code = no additional itemsN = pressure feed valve

(State pressure range in clear text)N6 = pressure feed valve

valve port size 6to DIN 24 340

N10 = pressure feed valvevalve port size 10

to DIN 24 340

Servo qualityNo code = standard

(size 11, 80, 125, 160)E2 = reduced clearances

(sizes only 32, 63, 90, 110)Line connections

A0 = threaded connection radialA1 = flanges connection radial

(for sizes 80, 125, 160-SAE 3/4")B5 = threaded connection axial

(sizes only 20, 32, 40, 63, 90, 110)Flange design

1 = face mounting, standard design(not for type MKM 11)

2 = flange mounting3 = face mounting

(only for sizes 32, 63, 90, 110)M = NB Rseals, suitable for

HLP mineral oil nach to 51 524 part 2V = Viton seals suitable, for HFD

for HFB and HFC-pressures reduced to 70%

MKM 11 AM 1X/VFA

MKM ... AZ 1X/M2 A0MKM ... AZ 1X/M2 A1MKM ... AM 1X/M2 A0MKM ... AM 1X/M2 A1

MRM

MRM ... AZ 1X/M1 A0MRM ... KZ 1X/M1 A0MRM ... AM 1X/M1 A0MRM ... KM 1X/M1 A0

Motor typeStandard motor = KM(size 11, 20, 32, 40,63, 90, 110)Motor withrunningclearance = RM(size 80, 125, 160)Displacement size 11 cm3 = size 11 = 11 20 cm3 = size 20 = 20 33 cm3 = size 32 = 32 40 cm3 = size 40 = 40 66 cm3 = size 63 = 63 81 cm3 = size 80 (RM) = 80 89 cm3 = size 90 = 90110 cm3 = size 110 = 110126 cm3 = size 125 (RM) = 125161 cm3 = size 160 (RM) = 1601st shaft endcylindrical, key DIN 6885 = ASplined shaft DIN 5480 = K(motor type MRM only)Internally splined shaft DIN 5480 = H(motor type MKM only)2nd shaft endwithout 2nd shaft end = Zcylindrical 10 mm dia. for = Mtacho connectionsplined ,dia 28 mm DIN 5480 =M10-(motor type MKM only)Series 10 to 19 = 1X(10 to 19, installation and connectiondimensions remain unchanged)

Order codes

Preferred Types (short term delivery)

5/24

GeneralDesign Radial piston motor, fixed displacementType designation MKM; MRMType of mounting Flange/face mountedType of connection Threaded/flange (depending on model)Installation position OptionalShaft loading, bearing life see page 6Moment of inertia J kg cm2 2,63 2,97 2,80 3,00 3,30 17 3,90 4,10 17 23Weight m kg 12 14 17,4 16 18,8 40 21,4 21,4 40 58

HydraulicSize NG 11 20 32 40 63 80 90 110 125 160Displacement V cm3 11 20 33 40 66 81 89 110 126 161Torque specific theoretic T Nm/bar 0,17 0,32 0,52 0,64 1,05 1,29 1,41 1,75 2,00 2,56

specific mean T Nm/bar 0,15 0,27 0,48 0,54 0,95 1,16 1,27 1,59 1,80 2,38continuous T Nm 21 27 76,8 54 152 290 178 223 360 595max. T Nm 31,5 43,2 120 86,4 237 365 266 334 567 750

Pressure difference continuous pressure p bar 140 100 160 100 160 250 140 140 200 250 operating pressure p bar 210 160 250 160 250 315 210 210 315 315 max. pressure*) p bar 250 200 315 200 315 400 250 250 350 400

Summated pressure at port A + B p bar 250 200 315 200 315 400 250 250 350 400Case drain pressure p bar 1,5 bar (special seal for higher pressures on request)Speed range n rpm 10 to 10 to 10 to 5 to 5 to 5 to 5 to 5 to 5 to 5 to

3000 2000 1500 1500 1200 1000 900 750 800 1000Please refer to Operating Manual for speeds 20 rpm;depending on operating conditions minimum speeds ofup to 0,1 rpm are possible in the closed loop control circuit.

Max. power. P kW 9,8 9 18,8 13,5 29,7 38,2 25 26,2 47,5 78,5In continuous operation without motor flushing approx. 50 %of corner power can be achieved.

Hydraulic fluid HLP mineral oil to DIN 51 524 part 2HFB and HFC fluids reduce pressure to 70 %.Calculate bearing life accordingly.HFD, Viton seals required.

Hydraulic fluidTemperature range C 30 to + 90Viscosity range mm2/s 20 to 150

Recommended operating range 30 to 50up to 1000 on start-up

Fluid cleanliness Max. permissible level of contaminationof hydraulic fluid to NAS 1638 class 9. For this werecommend a filter with a minimum retention rate of 10 100.To ensure longer life we recommend NAS 1638 class 8.Can be achieved using withminimum retention rate of 5 100.

*) Definition to DIN 24 312 Maximum pressure = pressure curve which temporarily exceeds the maximum operating pressureand at which the motor continues to remain operable.

RE 15 190/02.92Technical data (for applications outside these parameters please consult us)

6/24

RE 15 190/10.90

L(n-hyd)10 is the modified nominal bearing life using mineral oilwith a viscosity of - 36 mm2/s in operating hours where 10%of the bearings may fail. 90% achieve a higher bearing life.The average mean bearing life L(n-hyd)50 with mineral oil isapproximately 5xL(n-hyd)10. In practice a minimum of

L(n-hyd)50 can be expected for hydraulic drives with mineral oil.As the operating speed is incorporated in the calculationroughly as a proportionate figure, the table value is convertedaccordingly.

Bearing life, shaft strength

Type Speed Ln-hyd10 in operating hours at pre-set pressure drop and speed

n With no external forces on drive shaftin rpm 100 bar 140 bar 160 bar 180 bar 210 bar 250 bar 315 bar

MKM 11 1000 100 000 91 945 58 914 39 784 23 799MKM 20 500 100 000 38 128 24 431MKM 40 500 12 785 4 165 2 668MKM 32 500 100 000 33 990 21 779 14 707 8 797 589MKM 63 350 15 022 4 101 2 628 1 774 1 061 593MKM 90 250 4 531 1 476 945 638 382MKM 110 250 4 531 1 476 945 638 382MRM 80 400 100 000 100 000 100 000 100 000 84 887 47 482 21 972MRM 125 400 100 000 74 087 47 472 32 057 19 176 10 724 4 963MRM 160 400 100 00 38 878 24 911 16 822 10 063 5 627 2 604

Type Speed Ln-hyd10 in operating hours at pre-set pressure drop and speed

n MKM 11, 20, 40, 32, 63 max. permissible radial load at the centre of the output shaft 4500 NMKM 90, 110 max. permissible radial load at the centre of the output shaft 3000 NMRM 80, 125, 160 max. permissible radial load at the centre of the output shaft 10 000 N

in rpm 100 bar 140 bar 160 bar 180 bar 210 bar 250 bar 315 barMKM 11 1000 5141 4588 4300 4014 3601MKM 20 500 6965 5697 4724MKM 40 500 6435 2763 1918MKM 32 500 4566 3320 2824 2406 1904 1412MKM 63 350 4993 2316 1650 1207 786 474MKM 90 250 3858 1349 880 602 365MKM 110 250 3858 1349 880 602 365MRM 80 400 88325 57527 46768 38288 28749 20102 11853MRM 125 400 48594 26523 20102 15473 10731 6884 3659MRM 160 400 42448 24433 17115 12345 7923 4712 2312

7/24

0 500

20

25001000 1500 2000

40

60

155

83 %

82 %80 %

83,5 %85 %

84,5 %

84 %140

110

80

50

20

3525155

79 %81 %

77 %

0 50 100 150 200 250

0,2

0,4

0 1000

10

2000 3000 4000

20

30

402 10 18 26

3442

250

210

170

130

90

50

83 %

82 %

80 %

75 %

65 %70 %

85,5 %

85 %

84,5 %

84 %

0

0,5

50 100 150

1

1,5

MKM 11

Leak oil volumetric flowat speed n = 500 rpm

Speed n in rpm Pressure p in bar

MKM 20

Speed n in rpm

Flow Q in dm3/min


Pressure p in bar

Performance curves (average value) measured at = 36 mm2/s; = 50 C; poutlet = 0 bar; pleakage oil = 0 bar

Flow Q in dm3/min

Effe

ctive

torq

ue T

e in

Nm

Effe

ctive

torq

ue T

e in

Nm

Inle

t pre

ssur

e p in

let

in b

arIn

let p

ress

ure

p inle

t in

bar

leak

oil v

olum

etric

flow

Q

Lin

L/m

inle

ak o

il vol

umet

ric fl

ow Q

Lin

L/m

in

RE 15 190/10.90

8/24

0

0,5

50 100 150

1

1,5

0 200

20

1600400 600 800 1000 1200 1400

40

60

80

100

120

50160

90 %

35205

130

100

70

40

10

89,5 %

89 %

88,5 %

88 %87 %

86 %

84 %82 %

80 %

0

1

80 160 240

2

3

0 200

20

1600400 600 800 1000 1200 1400

40

60

80

100

120

45210

89,5 %

87 %

88,5 %

86%88 %89 %90 %

84 %

80 %

170

130

90

50

10

255

MKM 32

MKM 40


Speed n in rpm Pressure p in bar

Speed n in rpm


Pressure p in bar

Effe

ctive

torq

ue T

e in

Nm

Effe

ctive

torq

ue T

e in

Nm

Inle

t pre

ssur

e p in

let

in b

ar

leak

oil v

olum

etric

flow

Q

Lin

L/m

inle

ak o

il vol

umet

ric fl

ow Q

Lin

L/m

in

Flow Q in dm3/min

Inle

t pre

ssur

e p in

let

in b

ar

Flow Q in dm3/min

RE 15 190/10.90Performance curves (average value) measured at = 36 mm2/s; = 50 C; poutlet = 0 bar; pleakage oil = 0 bar

9/24

0

1

100 200 300

2

3

0

100

2000500 1000 1500

500

200

300

400

90 %

310

250

190

130

70

10

1451005510

89,5 %

89 %

88,5 %

88 % 87 %86 %

85 %

83 %

81 %

0

1

80 160 240

2

3

0 200

50

1600400 600 800 1000 1200 1400

250

100

150

20075

19090,5 %

91 %

130

70

10

55453525155

90%

89 %

88 %

86%

84 %

MKM 63

MRM 80

Speed n in rpm

Speed n in rpm


Pressure p in bar

leak

oil v

olum

etric

flow

Q

Lin

L/m

inle

ak o

il vol

umet

ric fl

ow Q

Lin

L/m

in

Inle

t pre

ssur

e p in

let

in b

ar

Effe

ctive

torq

ue T

e in

Nm

Effe

ctive

torq

ue T

e in

Nm

Inle

t pre

ssur

e p in

let

in b

ar


Pressure p in bar

Flow Q in dm3/min

Flow Q in dm3/min

RE 15 190/10.90


10/24

0

1

80 160 240

2

3

0 100 800200 300 400 500 600 700

400

100

200

300

82,5210

91 %

170

130

90

50

10

72,562,552,542,532,5

22,512,52,5

90,5 %

90 %

89,5 %

89 %

88 %86 %

84 %

0

1

80 160 240

2

3

0

50

100

300

100

150

200

250

200 300 400 500 600 700 800 900

76

190

91 %

6146311

130

70

10

90,5 %

90 %

89,5 %

89%

88%

87 %

86 %84 %

82 %

MKM 110

RE 15 190/10.90

MKM 90

Flow Q in dm3/min

Inle

t pre

ssur

e p in

let

in b

ar

Effe

ctive

torq

ue T

e in

Nm

Effe

ctive

torq

ue T

e in

Nm

leak

oil v

olum

etric

flow

Q

Lin

L/m

in

Speed n in rpm

Speed n in rpm

Inle

t pre

ssur

e p in

let

in b

ar

leak

oil v

olum

etric

flow

Q

Lin

L/m

in



Pressure p in bar

Pressure p in bar

Flow Q in dm3/min


11/24

0

2

100 200 300

4

6

0 200

200

1400

1000

400

600

800

400 600 800 1000 1200

140

310

92 %

250

190

130

70

10

18595505

91,5 %

91 %

90,5 %

90 %

89 %

85 %

87 %

0

1

100 200 300

2

3

0 100 800200 300 400 500 600 700

800

200

400

600 320

92 %

260

200

140

80

20

8176614631161

91,5 % 91 %

90 %90,5 %

89 %88 %

84 %86 %

MRM 160

MRM 125

Speed n in rpm

Inle

t pre

ssur

e p in

let

in b

ar

Flow Q in dm3/min

Effe

ctive

torq

ue T

e in

Nm

Effe

ctive

torq

ue T

e in

Nm


Pressure p in bar

leak

oil v

olum

etric

flow

Q

Lin

L/m

in

Flow Q in dm3/min

Inle

t pre

ssur

e p in

let

in b

ar

leak

oil v

olum

etric

flow

Q

Lin

L/m

in


Pressure p in bar Speed n in rpm

RE 15 190/10.90Performance curves (average value) measured at = 36 mm2/s; = 50 C; p

outlet = 0 bar; pleakage oil = 0 bar

12/24

0 500

5

1000 1500 2000 2500 3000 3500 4000

10

15

20NG 11

0 250

5

500 750 1000 1250 1500 1750 2000

10

15

20

NG 20

NG 32/40NG 63NG 90NG 110

0 250

5

500 750 1000 1250 1500 1750 2000

10

15

20

NG 160NG 80

NG 125

MKM

MRM

The minumum feed pressure required during pumping (overrun) operation is obtained from the value plotted plus the actualleakage oil pressure at the motor port.

size 11

size 90

size 20

size110 size 63 size 32/40

size 125

size 80

Speed n in rpm

Speed n in rpm

Speed n in rpm

boos

t pre

ssur

e p

in b

arbo

ost p

ress

ure

p in

bar

boos

t pre

ssur

e p

in b

ar

size 160

RE 15 190/10.90Performance curves (average value) measured at = 36mm 2/s and t = 50C;and p leakage oil 1 bar

13/24

line connection points A1

Detail "X"

1 Port A2 Port B3 Direction of rotation viewed on shaft end

Right: with through flow from port B to ALeft: with through flow from port A to B

4 Leakage port5 Key A 5 x 5 x 20

DIN 68856 Recess for O ring 21.89 x 2.62

for flange type2 (ISO 3019/2)line connection points A0

135

13516

0

14H

134545

544

1

15

1

33

27,2

9

3918,5

~ 190

82

26

12

5 h8 15

,85 +0

,025

18

G 1/2

34

2,6

15

G 1/4

25

14

1,5

6060

X

G 1/4 25

60

100

30

70 34

15

44

22

26

4

1

2

6

M12 x 14

21 4

3

2

5

1/4"BSP

1/4"BSP

1/2"BSP

Unit Dimensions: MKM 11 (Dimensions in mm)RE 15 190/10.90

14/24

12

0 h8

525517

50

L126

1,3

14

135

M8

80

h8

G1/425

22 DIN 33219

36

36G1/2

152,

3

34

8

3313

7

3060

100

6 x M8; 17

30 k

6

175

1

60 h

8

52

L

6111

1845

20

0

26

3470 100

22M12 x 14

18

44

70

3636

G3/

4

14

25

36

18

36

0,518

G1/

4

36

42

RE 15 190/10.90

Unit Dimensions: MKM 20 and 40 (Dimensions in mm)


Right: with through flow from port B to ALeft: with through flow from port A to B

4 Leakage port4.1 Leakage port,

drawn off-sett5 Key A 8 x 7 x 45

DIN 68856 Recess for O ring 21.89 x 2.62

line connection points A1 line connection points B5

for flange type 2DIN ISO 3019/2

for flange type 1line connection points A0

3 4.1 5 2

1

1 4 5

2

1

2

6

4

41

1/2"BSP1/4"BSP

3/4"

BSP

1/4"

BSP

2

Type L1MKM 20 215MKM 40 241

15/24

12

0 h8

5255

17

50

L1

26

2,3

135

M8

80

h8

G1/234

22

DIN 332

19

74

36

25

1,3

8

33

178

100

72

G1/4M8

30

6 x

60

30 k

6

175

1

60 h

8

52

L

6111

1845

20

0

51,43

140

52

1

20 h8

777 x M8, 10

7 x

51,43

=

360

26

3470 100

22M12 x 14

18

44

70

3636

G3/

4

14

25

36

18

36

0,518

G1/

4

36

42

Unit Dimensions: MKM 32, 63, 90 and 110 (Dimensions in mm)


Right: with through flow from port B to A Left: with through flow from port A to B

4 Leakage port5 Key A 8 x 7 x 45 DIN 68856 Recess for O ring 21.89 x 2.62

for flange type 1line connection points A0

for flange type 2DIN ISO 3019/2

line connection points A1 line connection points B5

3 5

4

line connection points 35

4 5

2

1

1 41

2

6

4

1

2

2

3/4"

BSP

1/4"

BSP

1/2"BSP

1/4"BSP

RE 15 190/10.90

Type L1MKM 32 203MKM 63 221MKM 90 243MKM 110 243

16/24

38

18

25

6

7

45

H7

60

3

141,5

M10

35

H7

DIN 332

223

36

140h8

200

72

72

M12

11

60

160

69

M16

79

DIN 332

65

12

43

40k6

140

1978

G147

607,5

17

1017454

56

31

M16

37,5

1

25h8

1

85

40j6

361,8550

70326

241

110

R4

126

M12

129

160

60

72

G 3/8,14

65

RE 15 190/02.92

Unit Dimensions: MRM 80 and 125 (Dimensions in mm)



4 Leakage portRecess dia. 28 mm, 72 offset in relation toports A and B

5 Key A 12 x 8 x 56 DIN 68857 Shaft groove for retaining ring DIN 4718 Splined shaft connection DIN 5480

W40 x 2 x 18 x7h9 Splined shaft connection DIN 5480

N45 x 2 x 21 x 9H

for flange type 1with splined Kline connection points A0

shaft variant A shaft variant H

5

9

4 7

3 8

3/8"BSP14 deep

1"BSP

for flange type 2with through holes

1 2

17/24

M12

257

160

42

72

140

1978

G147

707,5

17

1021654

66

41

M16

4

7

125

h8

1

85

50j6

366080

378283

110

R4

2,15

G 3/8,14

38

18

25

6

7

45

H7

60

3

141,5

M10

35

H7

DIN 332

223

18

140h8

160

200

72

72

42M12

11

69

M16

79

DIN 332

65

12

43

40k6

Unit Dimensions: MRM 160 (Dimensions in mm)

for flange type 2with through holes



4 Leakage portRecess dia. 28 mm, 72 offset in relation toports A and B

5 Key A 14 x 9 x 70 DIN 68857 Shaft groove for retaining ring DIN 4718 Splined shaft connection DIN 5480

W50 x 2 x 24 x 7h9 Splined shaft connection DIN 5480

N45 x 2 x 21 x 9H

for flange type 1with splined Kline connection points A0

shaft variant H

5

9

84

3 7

3/8"BSP14 deep

1"BSP

1 2

shaft variant A

RE 15 190/10.90

18/24

174

30

54

28

20

47.6

3

68

22.23

126M12

129

160

60

72

M10, 18

174

30

54

28

20

47.6

3

68

22.23

M12

257

160

42

72

M10, 18

Unit Dimensions: MRM 80, 125 and 160 (Dimensions in mm)MRM 80, MRM 125for flange type 1with splined Kline connection points A1

1 Port A SAE J 518 3/4" Standard2 Port B SAE J 518 3/4" Standard3 Direction of rotation viewed on shaft end

Right: with through flow fromport B to A

Left: with through flow fromport A to B

4 Leakage port 3/8"BSPRecess dia. 28 mm, 72 offset in relation toports A and B

10 Flange height from centre of shaft 80+0,5 mm

4

1 10 2

3

MRM 160for flange type 1with splined Kline connection points A1

4

1 10 2

3

dimensionsee page 16

dimensionsee page 17

216

RE 15 190/10.90

19/24

3550

56

4

19

2

8 k6

M8

4

0 h8

22

4

40

h6

20

10

h6

Order Codes MOne size parallel tacho-shaft for all types, for measuring motor speed, transmits a maximum torque of 5 Nm (for higher outputtorques please consult us).

Unit Dimensions: Motor with Through Output Shaft (Dimensions in mm)

Order Codes M10All radial piston motors in series MKM can be supplied with a through output shaft, order code M10-, for full motor torquetransmission.

M 6x8 deepon 63 p. c. d.

Connection tosplined shaftDIN 5480W 28 x 1,25 x 7h

Unit Dimensions: Motor with Parallel Tacho-Shaft (Dimensions in mm)RE 15 190/10.90

20/24

MA MB

E

BA

L

A B

29,5

MA

A 32

B

MB E

53,520,5

L

22

46,518

70

87

38

65

MA

B

33

B

67100

A

MA MBE

36L

Series MKM radial piston motors with two boost pressure-feed valves, pilot control (RE 64 642), gauge ports 1/4"BSP,feed 1/4"BSP and line connection points 1/2"BSP.

Symbol, functional description

Two pressure relief valves MHDBN 16K2-1X/.. protect thedrive from overloads. The maximum operating pressure canbe set individually for each direction of rotation. The leakageoccurring is fed back by way of feed valves at port E. Theminimum feed pressure required for the different types ofmotor, depending on operating speed, can be calculated fromthe performance curves on page 12 plus 1.5 bar openingpressure at the feed valve.

Note: Valve cartridges are not included in the supply andmust be ordered separately!

Valve Structure: Pressure Limiting, feed, MKM (Dimensions in mm)RE 15 190/02.92

Port Recessthread deep dia. deep

A 1/2"BSP 14 28 1,3+0,1B 1/2"BSP 14 28 1,3+0,1L 1/4"BSP 14 25 1,3

-0,3

E 1/4"BSP 12 20 0,5MA 1/4"BSP 12 20 0,5MB 1/4"BSP 12 20 0,5

21/24

29,5

MA

P 32

T

MB E

53,5

20,5

L

22

46,518

70

87

38

65

MA

38

T

70100

P

MA MBE

36L

158

132

T

50

5030

22,5

Radial piston motors series MKM with two boost pressure-feed valves, pilot control (RD 64 642), gauge ports 1/4"BSP, feed 1/4"BSP and valve connection CETOP 3, mounting pattern to DIN 24340 form A6.



P 3/8"BSP 12 23 0,5T 3/8"BSP 12 23 0,5L 1/4"BSP 14 25 1,3

-0,3

E 1/4"BSP 12 20 0,5MA 1/4"BSP 12 20 0,5MB 1/4"BSP 12 20 0,5

This block structure features valves with ports to DIN 24340form A6 which are screwed directly on to the motor in order toachieve better control and regulation of the drive through thesmaller volume of oil incorporated.Two pressure reducing valves MHDBN 16K2-1X/.. protect thedrive from overloading. Maximum operating pressure can beindividually set for each direction of rotation. Any leakageoccurring is fed back by way of feed valves at port E. Thenecessary minimum feed pressure for the different motortypes is calculated from the performance curves on page 12plus 1.5 bar operating pressure at the feed valve.


Valve Structure: Pressure Limiting, CETOP 3 - Mounting Pattern, MKM (Dimensions in mm)RE 15 190/02.92

MA MB

E

BA

L

A B

P T

P T

22/24

29,5

MA

P

32

MB E

53,520,5

L

22

46,518

70

87

38

65

MA

4

T

100

P

MA MBE36

L

186

145

P

50

78

50

2517,5

T

MA MB

E

BA

L

A B

P T

P T

RE 15 190/02.92

Radial piston motors, series MKM, with two. boost pressure-feed valves, pilot control (RE 64 642), gauge ports 1/4"BSP, feed 1/4"BSP and valve port CETOP 5, mounting pattern to DIN 24340 form A10


This block structure features valves with ports conforming toDIN 24340 form A 10 which are screwed directly on to themotor so as to achieve improved control and regulation of thedrive by means of the smaller incorporated volume of oil.Two pressure relief valves MHDBN 16K2-1X/.. protect thedrive from overloading. Maximum operating pressure can beindividually set for each direction of rotation. Any leakagearising is fed back by way of feed valves at port E. Thenecessary minimum feed pressure for the different types ofmotor, depending on the operating motor speed, is calculatedfrom the performance curves on page 12 plus 1.5 bar openingpressure at the feed valve.


Valve Structure: Pressure Limiting, CETOP-5 Mounting Pattern, MKM (Dimensions in mm)


P 1/2"BSP 14 28 0,5T 1/2"BSP 14 28 0,5L 1/4"BSP 14 25 1,3

-0,3

E 1/4"BSP 12 20 0,5MA 1/4"BSP 12 20 0,5MB 1/4"BSP 12 20 0,5

23/24

38

34

46,5

70AB

80 16,

5

40

15

L

MA

5

2650

74100

MB EA72

L

MA MB

E

BA

L

A B

Radial piston motors, series MRM, with two boost pressure-feed valves, pilot control (RE 64 642), gauge ports 1/4"BSP,feed 3/8"BSP and supply line ports 3/4"BSP.


Two pressure relief valves MHDBN 16K2-1X/... protect thedrive from overloading. The maximum operating pressurecan be individually set for each direction of rotation. Anyleakage occurring is fed back by way of feed valves at port E.The required minimum feed pressure for the different types ofmotor, depending on the operating motor speed, is calculatedfrom the performance curves on page 12 plus 1.5 bar openingpressure at the feed valve.


Valve Structure: Pressure Limiting, MRM (Dimensions in mm)RE 15 190/02.92

Port Recessthread deep dia deep

A 3/4"BSP 14 33 1,3+0,1B 3/4"BSP 14 33 1,3+0,1L 3/8"BSP 14 28 1,5E 3/8"BSP 12 25 0,5MA 1/4"BSP 12 20 0,5MB 1/4"BSP 12 20 0,5

24/24

80 16,

5

40

15

L

MA

49

MB E

72

L

T

P

T

P

100

147,

5

157

198

210

3834

46,5

70

T

P

MB E MA

265

L

5074

75

MA MB

E

BA

L

A B

P T

P T

RE 15 190/02.92

Radial piston motors series MRM with two boost pressure-feed valves, pilot control (RE 64 642), gauge ports 1/4"BSP,feed 3/8"BSP and valve port CETOP 5, mounting pattern to DIN 24340 form A 10.

This block structure features valves with ports to DIN 24340form A 10 which are screwed directly on to the motor in orderto achieve improved control and regulation of the drive bymeans of the smaller incorporated oil volume.Two pressure relief valves MHDBN 16K2-1X/.. protect thedrive from overloading. The maximum operating pressurecan be individually set for each direction of rotation. Anyleakage occurring is fed back by way of feed valves at port E.The required minimum feed pressure for the different types ofmotor, depending on the operating motor speed, is calculatedfrom the performance curves on page 12 plus 1.5 bar openingpressure at the feed valve.



Valve Structure: Pressure Limiting, CETOP 5-mounting pattern, MRM (Dimensions in mm)

Mannesmann Rexroth GmbHD-97813 Lohr am MainJahnstrae 3-5 D-97816 Lohr am MainTelefon 0 93 52 / 18-0 Telefax 0 93 52 / 18-10 40Telex 6 89 418

All rights reserved Subject to revision

G.L.Rexroth Ltd.,Cromwell Road, St. Neots,Cambridgeshire, PE19 2ES.Tel: 0480 476041Fax: 0480 219052

Port Recessthread deep dia deep

P 3/4" BSP 16 33 0,5T 3/4" BSP 16 33 0,5L 3/8" BSP 14 28 1,5E 3/8" BSP 12 25 0,5

MA 1/4" BSP 12 20 0,5MB 1/4" BSP 12 20 0,5

FeaturesSection, functional descriptionSymbolsMotor typesOrder codesPreferred TypesTechnical dataBearing life, shaft strengthPerformance curvesMKM 11MKM 20MKM 32MKM 40MKM 63MRM 80MKM 90MKM 110MRM 125MRM 160Boost pressure

Unit DimensionsMKM 11MKM 20, 40MKM 32, 63, 90, 110MRM 80, 125MRM 160MRM 80, 125, 160Motor with parallel tacho-shaftMotor with through output shaft

Valve structureMKMPressure limitingSymbol, functional description

CETOP 3 - mounting patternSymbol, functional description

CETOP 5 - mounting Pattern,Symbol, functional description

MRMPressure limitingSymbol, functional description

CETOP 5 - mounting patternSymbol, functional description

Documents

Re 15190