Industrial

Hydraulics

Electric Drives
and Controls

Linear Motion and

Assembly Technologies

Pneumatics

Service
Automation

Mobile
Hydraulics

RE 15 208/10.94 1/8
Replaces: 15 217

Hydraulic Motor
(Radial Piston, Multi-Stroke)

Type MCR 15

Size 1130 to 2150

Series 3X
Maximum operating pressure 450 bar
Maximum displacement volume 2150 cm3
Maximum output torque 13688 Nm
H/A 2388

Contents
Description
Features
Section, Function
Ordering codes, symbols
Technical data

Features
Page
1

compact, sturdy construction

smooth running even at very low speeds

1, 2

low noise

reversible

4, 5

sealed tapered roller bearing

Unit dimensions, radial loads "C"

high radial forces permitted on output shaft

Unit dimensions, radial loads "F"

shaft seal up to 10 bar

Unit dimensions (holding brake and wheel brake)

optional integral holding brake (multi-disc brake) or wheel

brake (drum brake)
switchable
freewheeling
half displacement
for open and closed circuits

Function (open and closed circuits)

Closed circuit

Open circuit

Minimum inlet pressure must be adapted to suit operating

conditions; the following must be taken into consideration:
idling pressure, flow resistances, pump operation.
Minimum flow of the feed pump must be adapted to suit
operating conditions.

Minimum inlet pressure must be adapted to suit operating

conditions; the following must be taken into consideration:
idling pressure, flow resistances, pump operation.
The outlet pressure must be at least 2 bar greater than the
pressure in the housing.
If the motor circuits are in series please consult the
manufacturer.

2/8

Bosch Rexroth AG | Mobile Hydraulics

MCR 15 | RE 15 208/10.94

Section, Function
A

5 3

A B

D2D 7D
6
Hydraulic motors Type MCR are radial piston motors with a
rotating shaft.
Construction
Two-part housing (1; 2), rotary piston assembly (3; 4) cam (5),
output shaft (6) and control section (7)
Transmission
The rotor (4) is connected to the shaft (6) by means of splines.The
pistons (3) are arranged radially in the rotor (4) and are supported
on the cam plate (5) by way of rollers (8).

Mounting the brakes

Holding brake (multi-disc brake)

9
12
13

Torque generation

10

Return

Feed
Working stroke

11

Idle stroke

The number of working and idle strokes corresponds to the

number of cams on the stroke curve.
Open loop control
The cylinder chambers (E) are connected to ports A or B by
means of the axial bores and the annular passages (D).
Bearings
Tapered roller bearings capable of transmitting high axial and
radial forces.
Freewheeling
If the two ports A and B are connected with no pressure loading
and a pressure of 2 bar is simultaneously applied to the housing
by way of port L , the pistons will be forced into the rotary piston
assembly. The rollers will no longer be lying against the cam curve
and it will be possible for the end of the shaft to be rotated.
Switching to half displacement
On certain models of radial piston motors halving of displacement
is possible. This means that at working stroke only half the pistons
are supplied with fluid by way of a valve in the control system. The
remaining pistons are connected to the outlet side of the motor.
When connected the motor will run at twice the speed but at half
torque.

Mounting:
By way of control housing
(2) and through drive.
Brake application
If the pressure in the
annular area (9) falls short
of a pre-determined level,
the Belleville washer (10)
will press the disc package
(11) together.
Brake release
If the pressure in the
annular area (9) exceeds
the required level, the brake
piston (12) will be pushed
against the Belleville washer
(10). The load is taken off
the disc package (11), and
the holding brake released.

Wheel brake (drum brake)

Mounting
Directly onto output shaft
(6) and flange housing (1).
Operating the brake

hydraulic
for dynamic braking

mechanical
as a holding brake

1
6

RE 15 208/10.94 | MCR 15

Mobile Hydraulics | Bosch Rexroth AG

3/8

Ordering codes
MCR 15

Z 3X

Further details
in clear text

Studs
without studs
with studs for
wheel mounting
Ports
BSP thread to ISO 228/1
UNF-SAE threads

no code =
/S =

Flange housing
Compact version
Wheel version

=C
=F

Sizes
Sizes/Displacement V
Size 1130
= 1130 cm3
Size 1250
= 1250 cm3
Size 1500
= 1500 cm3
Size 1780
= 1780 cm3
Size 2150
= 2150 cm3
1st shaft end
with flange 250 1)
with flange 280 2)

only with flange housing C

2)

only with flange housing F

not switchable,
anti-clockwise rotation preferred
2R = switchable, clockw. rotation preferred
2L = switchable, anti-clw. rotation preferred
Seals
M=
NBR seals, suitable for
mineral oil to DIN 51 524 (HL, HLP)

= F 250
= F 280

without 2nd shaft end

Series
Series 30 to 39
(30 to 39, externally interchangeable)
1)

11 =
42 =
no code =

= 1130
= 1250
= 1500
= 1780
= 2150

=Z
= 3X

Brake mounting
without brake
hydraulic holding brake
(spring pressure disc brake)
2) C12R =
Wheel brake (drum brake)
for right side of vehicle, see Fig. on page 8
2) C12L =
Wheel brake (drum brake)
for left side of vehicle, see Fig. on page 8
AO =
B11 =

Symbols to DIN ISO 1219

Motor for two speeds
L

Motor with
holding brake

Motor with
wheel brake

4/8

Bosch Rexroth AG | Mobile Hydraulics

MCR 15 | RE 15 208/10.94

Technical data (For applications outside these parameters please consult us)
General
Type
Model
Type code
Type of mounting
Type of connection
Mounting position
Shaft load
Direction of rotation
Frame size
Nominal size
Displacement
Displacement flow at n = 100 rev/min/100 bar
Output torque 1), 7)
spec. torque
(at p = 100 bar)
max. torque
Output torque 1; 7)
min. speed
max. speed
freewheeling
Output power 1)
continuous power
Weight motor
motor with holding brake
motor with wheel brake
Hydraulic
Nominal pressure
Pressure difference, cont. 2), 6), 7)
with mineral oil (HL, HLP)
Pressure difference, peak 3), 6), 7)
with mineral oil (HL, HLP)
Inlet pressure port A or B
Summated pressure 4; 6) port A + B
Case drain pressure
Fluid 5)
Fluid temperature range
Viscosity range
Fluid cleanliness

Piston machine
Radial piston multi-stroke motor, switchable displacement
MCR 15...
Flange mounting; face mounting
Threaded, flange
Optional
See pages 6, 7
Right / left - reversible
15
1130
1250
1500
1780
2150
1130
1250
1500
1780
2150
114
126
151
179
216

V
Q

cm3
L/min

Nm

1799

1990

2388

2833

3422

Nm

8095

8955

9552

11332

13688

n
n
n

rev/min
rev/min
rev/min

P
m
m
m

kW
kg
kg
kg

55
93
120
135

p
p

bar

250

bar

250

5 to 10 when running smooth, depending on application

150
150
150
125
125
300
55

55

60

60

Brake
Holding brake (multi-disc brake)
Holding torque
Brake release pressure, min max
Wheel brake (drum brake)

p
p
p

bar
bar
bar
bar

C
mm2/s

T
p

Nm
bar

450
470
470

400
420
420

10
Mineral oil (HL, HLP) to DIN 51 524
20 to +80
10 to 2000
Max. permissible degree of contamination of the fluid to
NAS 1638 class 9. We therefore recommend a filter with
a minimum retention rate of 10 75.

11 000
Min. 15 max. 30
See table page 8

1)

The data given apply after 100 hours running-in time

2)

Continuous operation

3)

Peak values may occur for a maximum duration of one second within an operating minute.

4)

In the return line we recommend pmin = 15 bar

5)

Environmentally friendly fluids HETG, HEPG, HEE to RE 90 221

6)

For connection in series, please consult the technical sales department.

7)

Warning! During the running-in time of the motor (min. 20 hours) motors should not be run unloaded at greater than
50% of maximum speed.

RE 15 208/10.94 | MCR 15

Mobile Hydraulics | Bosch Rexroth AG

5/8

Technical data (Mean values, measured at = 46 mm2/s and = 45 C)

Notes on the technical data

T = torque in Nm

Q = input flow in L/min

QL = case leakage in L/min

All torques given apply to run-in motors (see page 4, footnote 7 )

For "half displacement" operating mode multiply the torques and Qvalues by 0.5.
The torques given for 50% displacement do not apply to both directions of rotation, but only to the preferred direction of rotation
indicated (see page 4)

Nominal Size
Speed n in rev/min
T
Nm
100
Q
L/min
QL L/min
T
Nm
200
Q
L/min
QL L/min
T
Nm
300
Q
L/min
QL L/min
T
Nm
400
Q
L/min
QL L/min
T
Nm
450
Q
L/min
QL L/min
Nominal Size
Speed n in rev/min
T
Nm
100
Q
L/min
QL L/min
T
Nm
200
Q
L/min
QL L/min
T
Nm
300
Q
L/min
QL L/min
T
Nm
400
Q
L/min
QL L/min
T
Nm
450
Q
L/min
QL L/min
Nominal Size
Speed n in rev/min
T
Nm
100
Q
L/min
QL L/min
T
Nm
200
Q
L/min
QL L/min
T
Nm
300
Q
L/min
QL L/min
T
Nm
400
Q
L/min
QL L/min
T
Nm
450
Q
L/min
QL L/min

0
1133
0,72
0,20
2447
2,18
0,40
3670
4,04
0,50
4892
5,84
1,00
5503
6,90
1,10

25
1529
28,95
0,20
3166
29,59
0,40
4749
30,10
0,50
6331
31,00
1,00
7122
31,46
1,10

0
1253
0,74
0,20
2707
2,18
0,40
4060
4,04
0,50
5411
5,82
1,00
6088
6,90
1,10

25
1692
31,95
0,20
3503
32,59
0,40
5254
33,10
0,50
7003
34,00
1,00
7878
34,46
1,10

0
1504
0,40
0,20
3248
0,80
0,40
4872
1,00
0,50
6494
2,00
1,00
7305
2,20
1,10

25
2030
37,90
0,20
4203
38,30
0,40
6304
38,50
0,50
8403
39,50
1,00
9454
39,70
1,10

50
1583
57,40
0,30
3238
58,09
0,50
4858
59,02
0,70
6474
59,81
1,00
7284
60,59
1,30
1250
50
1751
63,40
0,30
3582
64,09
0,50
5373
65,02
0,70
7162
65,81
1,00
8057
66,59
1,30
1500
50
2101
75,60
0,30
4298
76,00
0,50
6448
76,40
0,70
8594
77,40
1,00
9669
77,60
1,30

1130
100
1493
114,19
0,50
3166
114,98
0,60
4694
115,52
0,70

150
1397
171,31
0,90
3133
172,16
1,00

0
1558
0,74
0,37
3683
2,18
1,09
5949
4,04
2,02
8160
5,82
2,92

25
2456
45,41
0,41
5049
46,55
1,11
7692
48,00
2,15
10335
49,46
3,21

100
1691
126,19
0,50
3503
126,98
0,60

150
1512
189,31
0,90

0
1882
0,72
0,37
4448
2,18
1,09
7186
4,04
2,02
9855
5,84
2,92

25
2967
54,66
0,41
6098
55,80
1,11
9290
57,25
2,15
12483
58,71
3,21

100
1983
151,00
0,50
4203
151,20
0,60

150
1719
226,80
0,90

50
2420
90,05
0,45
5116
91,22
1,13
7794
93,10
2,28
10425
94,81
3,50

1780
100
2043
179,22
0,53
4833
180,55
1,17

2150
50
100
2922
2467
108,55 216,22
0,45
0,53
6180
109,72
1,13
9414
111,60
2,28

150

6/8

Bosch Rexroth AG | Mobile Hydraulics

MCR 15 | RE 15 208/10.94

Unit dimensions (in mm)

288,4

Flange housing:
Ordering code "C"

179,5
16
8

10

20

10

20

98,9
73,4
36,5
57
41,5
9

6 x 20+0,1
8 x M10 x 17

R3

1
2

F
B

285-0,21

55

3040,25

105

55

160,8-0,25

250

205

335

375

115

A
X

X
21
40
R20

28,5

+0,35

5 6

8 x 22,4 0,1

105

1 Port A; B (inlet, outlet)

2 Case drain port L

56

6 M18 x 1,5 studs with nut, for retaining wheels

ordering code ../S..

3 Filling port F, may also be used as drain port

4 Pilot port X for switching displacement,
ordering code ..2L.. or ..2R..
(switching pressure p = 10 to 30 bar)

Direction of rotation (viewed on shaft end)

Standard design
B A

Switchable (preferred direction)

B A
B A

5 Shaft end with flange, ordering code "F250"

Port
A, B

Dimensions of threads
Ordering code "11"
Ordering code "42"
3/4 SAE (410 bar/6000 PSI)

L,F

1/2" BSP

3/4-16 SAE

3/8" BSP

9/16-18 SAE

Ordering code 2L Ordering code 2R

Permissible radial load on output shaft

Measured at speed n = 50 rev/min, pressure difference p = 250 bar

FA max (FR = 0) = +63 686N

FA max (FR = 0) = 20 800N

mm

FR
mm
100

Shaft end ...F 250...

Flange housing ...C...

90
80
70
60
50

FR in kN

40

400 320 240 160 80

30
20
10
0

NG
Size 1500
1500
NG 2150
Size
2150
-80 -160 -240 -320 -400

Distance L in mm

RE 15 208/10.94 | MCR 15

Mobile Hydraulics | Bosch Rexroth AG

7/8

Unit dimensions (in mm)

1

334,4

Flange housing:
Ordering code "F"

219,5

98,9
73,4
36,5
57
41,5
9

16
14

10

20

15,5

10

20

10 x 24+0,1
R3

8 x M10 x 17

B
55

3040,25

105

55

190

175,8 -0,2

280
225

335

375

115

285-0,21

A
X

X
23
R20

28,5

8x

105

50

+0,35
22,4 0,1

1 Port A; B (inlet, outlet)

2 Case drain port L

56

5 6

6 M22 x 1,5 studs with nut, for retaining wheels

ordering code ../S..

3 Filling port F, may also be used as drain port

4 Pilot port X for switching displacement,
ordering code ..2L.. or ..2R..
(switching pressure p = 10 to 30 bar)

Direction of rotation (viewed on shaft end)

Standard design

Switchable (preferred direction)

5 Shaft end with flange, ordering code "F280"

Port

Dimensions of threads
Ordering code "11"
Ordering code "42"

A, B

3/4 SAE (410 bar/6000 PSI)

L, F

1/2" BSP

3/4-16 SAE

3/8" BSP

9/16-18 SAE

Ordering code 2L Ordering code 2R

Pipe thread ("BSP) to ISO 228/1

Permissible radial load on output shaft

Measured at speed n = 50 rev/min, pressure difference p = 250 bar

FA max (FR = 0) = + 63 686N

FA max (FR = 0) = 77 500N

FA max (FR = 0) = + 63 686N

FA max (FR = 0) = 34 000N

FR

FR
mm

mm

mm

mm

100

Shaft end ...F 280...

Flange housing ...F...

90

180
Shaft end ...F 280...
Flange housing ...F...
Wheel brake ...C.12...

80
70
60
50

Size 1500
1500
NG
Size
2100
NG 2100

160
140
120
100

40

80

20
10

400 320 240 160 80

Size 1500
1500
NG
Size
2150
NG 2150

-80 -160 -240 -320 -400

Distance L in mm

60

FR in kN

FR in kN

30

400 320 240 160 80

40
20
0

-80 -160 -240 -320 -400

Distance L in mm

8/8

Bosch Rexroth AG | Mobile Hydraulics

MCR 15 | RE 15 208/10.94

Unit dimensions (in mm)

Holding brake (multi-disc brake):: Ordering code "B11"
L1

110,8

Flange housing

L1

373,7

419,7

33

139,5 0,5

Port
Z
Item 9

M24

M24

282

Dimensions of threads
Ordering
Ordering
code "/11"
code "/42"
3/8" BSP
9/16-18 SAE

7 Holding brake (multi-disc brake)

Ordering code B11

8 Brake release port Z

9 Threaded bore for emergency
mechanical release of holding brake

Wheel brake (drum brake) Ordering code "C12 L "

393,4

30

80

13
11

40

17

132

120

1
M10

12

113

M14 x 1,5

10

3460 N

1200 Nm

112 bar

6 10 M22 studs with nut for retaining wheels

10 Wheel brake (drum brake) Ordering code "C12R"
Bosch Rexroth AG
Mobile Hydraulics
Zum Eisengieer 1
97816 Lohr am Main, Germany
Telefon +49 (0) 93 52-18 0
Telefax +49 (0) 93 52-18 23 58
info.brm-mc@boschrexroth.de
www.boschrexroth.com/brm

Bosch Rexroth Limited

Mobile Hydraulics-Manufacturing
Viewfield
GB-Glenrothes, Fife KY6 2RD
Telefon +44 (1592) 63 17 77
Telefax +44 (1592) 63 18 88

Travel
direction
Fahrtrichtung

Right side
of vehicle
Ordering code C12R

14

Wheel brake as clamping brake

Wheel brake
Holding torque
Pull force
Braking torque
Port
static
of cable
dynamic
12000 Nm

22

Left side of
vehicle
Ordering code C12L

365

176

6
36

11 Cable pull (Bowden control), a motor is shown with brakes

for the vehicle right hand side. For the left hand side, ordering code "C12L", the position of the cable pull is reversed
(see drum brake diagram)
12 Cable pull length
13 Angled position of cable pull
14 Port for brake: pmax = 112 bar
2003 by Bosch Rexroth AG, Mobile Hydraulics, D-97813 Lohr am Main
All rights reserved. No part of this document may be reproduced or stored,
processed, duplicated or circulated using electronic systems, in any form or by
any means, without the prior written authorisation of Bosch Rexroth AG.
In the event of contravention of the above provisions, the contravening party is
obliged to pay compensation.
The data specified above only serves to describe the product. No statements
concerning a certain condition or suitability for a certain application can be
derived from our information.The details stated do not release you from the
responsibility for carrying out your own assessment and verification. It must be
remembered that our products are subject to a natural process of wear and
ageing.