Swash-plate Type Axial Piston Motors

SAFETY PRECAUTIONS
Before you use the product, you MUST read the operation or operators manual and MUST
fully understand how to use the product.
To use the product safely, you MUST carefully read all Warnings and Cautions in this manual.
You MUST also observe the related regulations and rules regarding safety.
Cautions related to operation

CAUTION

CAUTION

Use the safety equipment to avoid the

injury when you operate the product.
Pay enough attention on handling method
to avoid pinching hands or back problems
that may be caused by heavy weight of
the product or handling posture.

CAUTION

Do not step on the product, hit it, drop it or

give strong outside force to it, as one of
these actions may cause the failure of
work, damage or oil leakage.

CAUTION

Wipe the oil on the product or floor off

completely, as the oil creates slippery
conditions that may result in dropping the
product or injuring.

Warnings and Cautions for operation

DANGER

WARNING

WARNING

CAUTION

Warnings and Cautions related to

installation and removal of the product
CAUTION

CAUTION

Installation, removal, plumbing, and wiring

must be done by the certified person.

*CERTIFIED PERSON:a person who has

CAUTION

enough knowledge like a person who is

trained by Kawasakis hydraulic school.

WARNING

WARNING

CAUTION

CAUTION

Make it sure that the power of the hydraulic power unit is turned off and that the
electric motor or engine has completely
stopped before starting installation or removal. You must also check the system
pressure has dropped to zero.
Turn off the power before starting wiring
or other works related to the electric power, otherwise you may be stuck by an
electric shock.
Clean the threads and mounting surface
completely, otherwise you may experience
damages or oil leakage caused by insufficient tightening torque or broken seal.
Use the specified bolts and keep the
specified tightening torque when you install the product. Usage of unauthorized
bolts, lack of torque or excess of torque
may create problems such as failure of
work, damage and oil leakage.

CAUTION

Never use the product not equipped with

anti-explosion protection in the circumstances of possible explosion or combustion.
Shield the rotating part such as motor
shaft and pump shaft to avoid injuries
caused by being caught of fingers or cloths.
Stop the operation immediately if you find
something wrong such as unusual noise,
oil leakage or smoke, and fix it properly. If
you continue operating, you may encounter
damage, fire or injury.
Make it sure that plumbing and wiring are
correct and all the connection is tightened
correctly before you start operating, especially if it is the first run.
Use the product under the specification
mentioned in the catalog, drawings and
specification sheet.
Keep your body off the product during the
operations as it may become hot and burn
your body.
Use the proper hydraulic oil, and maintain
the contamination in the recommended level, otherwise it may not work or be damaged.

Cautions related to maintenance

CAUTION

CAUTION

CAUTION

CAUTION

Never modify the product without approval

of Kawasaki.
Do not disassemble and assemble without
approval by Kawasaki. It may cause troubles and failure, or it may not work as specified. If it is necessary by all means to disassemble and assemble, it must be done
by an authorized person.
Keep the product from dust and rust by
paying attention to the surrounding temperature and humidity when you transport or
store the product.
Replacing the seals may be required if you
use the product after long time storage.

Kawasaki M2X/M5X Series

High Performance Motors for Swing Applications
The product you have been waiting for...
FEATURES
1. Compact

3. Integrated Valving

The design provides for an extraordinarily compact

motor whereby the motor's rotating group, integral
mechanical brake element and the attached valve options are neatly packaged together. Assembling the
mechanical brake around the rotating group means
that there is no configurational difference in motor installation which allows the optional provision of a
brake.

Since the motor has built-in relief valve and make-up

valve elements within the motor's valve block head
cover, the connection of the piping from the control
valve to the motor ports enables the motor to achieve
swing function.

2. Constructed specifically for Swing Operation

The motor's rotating group has been designed specifically for an excavator swing circuit and is based upon
the abundant experience gained with the K series, N
series and M series units on which Kawasaki's good
customer reputation has been made.

4. Directly Connected to Reduction Gear

The mounting flange of the motor has been enlarged
so as to enable it to be directly connected with the ring
gear of the reduction gear box.

SPECIFICATIONS
Model
cm3

M5X180

M2X210

64.0

129.2

180.1

210.1

29.4 (300)

32.4 (330)

32.4 (330)

29.4 (300)

Maximum *2

34.3 (350)

39.2 (400)

39.2 (400)

34.3 (350)

2,200

1,850

1,680

1,400

300 (31)

670 (68)

932 (95)

980 (100)

69

129

163

144

Nm (kgfm)

314 (32)

843 (86)

1,250 (127)

1,380 (141)

MPa (kgf/cm2)

2.3 (23)

3.4 (34)

3.3 (33)

3.4 (35)

61

66

Maximum speed *3

min-1

Rated output torque *4

Nm (kgfm)

Rated output power *5

kW

Applicable maximum brake torque

Brake

M5X130

Rated *1

Displacement
Pressure
MPa ( kgf /cm2)

M2X63

Release pressure

4.9 (50)

Maximum allowable release pressure MPa (kgf/cm )

Mass

kg

29

47

*1 Pressure to allow guarantee of performance, functions and service life. Durability is unlimited (except for the bearing life).
*2 Pressure to allow the setting which enables operation with no functional problems. Durability and service life are limited.
Please consult us for details.

*3 The suction pressure should be 0.1 MPa (1kgf/cm2) or above.

The maximum speed which can be achieved without functional problems. In some cases, operating pressure and/or flow
will be limited.
*4 The theoretical value at the rated pressure excluding mechanical efficiency.
*5 The theoretical value at the rated pressure and maximum speed excluding both mechanical and volumetric efficiencies.

CONSTRUCTION OPERATION PRINCIPLE

1. Hydraulic Motor

2. Parking Brake

As shown in the figure below, the high pressure oil

passes through the inlet port (a) and flows into the cylinder block (4). Hydraulic force thus acts upon the piston (5), generating an axial force F. This force F is resolved through the shoe (2) into vector force F1 which
acts perpendicular to the swash plate (3), and vector
force F2 which is a vertical force with respect to the
output shaft. The reaction force of force F2 is transmitted via the piston to the cylinder block, generating a rotational force which turns the output shaft. There are 9
equally spaced pistons in the cylinder block. The pistons connected to the high pressure inlet port transmit
rotational torque sequentially to the output shaft. Reversing the flow of operating oil causes the output
shaft to rotate in the opposite direction of rotation.

This is a negative type, oil lubricated, multi-disc parking brake. That means that when the motor is not being operated, the brake piston (8) is pushed leftward
by the springs (7) and the resultant friction through the
separator plates restricts the rotation of the drive shaft
from being able to rotate. If, however, a release pressure is applied through the release port to the oil
chamber (6) such that the pressure force so generated
is larger than the spring force, than the brake piston
(8) moves to the right thereby providing a clearance
between the individual separator plates. The brake is
thereby released and the drive shaft can rotate freely.

Low pressure High pressure

oil
oil

Cylinder block (4)

(a)

F1

F2

Outlet port

Inlet port

Piston (5)

Driving shaft

Swash plate (3)

Valve plate (1)
Shoe (2)
Spring (7)
Brake piston (8)

Reference
Data
are indicated in both the SI units and the gravitational units. The relationship between these two units
are shown for reference.

Oil chamber (6)

SI units
9.807 MPa
9.807 Nm
0.735 kW
1mm2/s

gavitational units
1,450 lbf/ft2
7,233 lbfft
0.986 HP
1 cSt

100 kgf/cm
1 kgfm
1 PS
1 cSt

ORDERING CODE
M2X/M5X Series Motor

M5X

180

CH B

M2X/M5X Series

Parking brake
B : Built-in parking brake
X : No provision of parking brake

Size (displacement)
63 : 64.0 cm3
130 : 129.2 cm3
180 : 180.1 cm3
210 : 210.1 cm3

Valve cover code

AO:standard

CA:

CH:

DB

DB
M

M
DB

Hydraulic symbol
(AO type)

Hydraulic symbol
(CA type)

Hydraulic symbol
(CH type)

M2X/M5X-RG Series Motor

M5X180CHB
M2X/M5X Series
Reduction gear

RG

16
Output torque code
06: 4,850Nm (490 kgfm)
10: 10,600 Nm (1,080 kgfm)
16: 16,500 Nm (1,680 kgfm)
20: 20,000 Nm (2,040 kgfm)

ATTACHED VALVE
Relief valve (standard equipment in CA and CH type)

0.2sec
29.4
(300)
19.6
(200)

PA
29.4
(300)

19.6
(200)

1
(10)

9.8
(100)

0.5
(5)

9.8
(100)

PB

Time

0
0

100

200

Back pressure PB MPa (kgf/cm2 )

Pressure MPa (kgf/cm2)

Pressurizing speed characteristics

Pressure override characteristics

39.2
(400)

Relief pressure PA MPa (kgf/cm2)

The relief valves built into M2X/M5X series motors

have an excellent pressure override characteristic.
In addition this relief valve utilises a rate sensing
technique to control the rate of pressure increase.
Due to the addition of this function motor acceleration and deceleration can be controlled with a minimum of shock.

300

Anti-reaction valve (option)

Effect of the anti-reaction valve
Pset
without Anti-reaction valve
Pressure

When the operator wishes to decrease the jerkiness

of swing operation, the anti-reaction valve option
should be used whose examples of effects are
shown in the figure to the right.

with Anti-reaction valve

Position of bucket

Time
with Anti-reaction valve

Time
without Anti-reaction valve

Time delay valve for parking brake (option)

It is important that the brake is only operated after
the motor shaft has completely stopped.
The operating start time for brake applications
should therefore be delayed to take into account all
inertia conditions.
The valve has a function to delay the operating
start time for brake application by installing it at the
brake release port of the motor.

Hydraulic symbol
Motor

SH

PG
DB

Time delay valve

SH : Brake pilot port

PG : Brake release port

 Use range

Max. speed: 2,200 min-1

Pressure MPa ( kgf /cm2)

29.4
(300)

Rated output torque: 300 Nm

(31 kgfm)
Rated output power: 69 kW
0

Speed min-1

Applicable max. brake torque: 314 Nm

(32 kgfm)

2,200

Displacement: 64.0 cm

Brake release pressure: 2.3 MPa

(23 kgf /cm2)

Rated pressure: 29.4 MPa

(300 kgf /cm2)

Max. brake release pressure: 4.9 MPa

(50 kgf/cm2)

Max. pressure: 34.3 MPa

(350 kgf /cm2)

Mass: 29 kg

Dimensions
CHB type

2-

DB port: G3 / 8 - 15
M port: G3 / 4 - 20

258.5 (M,DB)

38.1

13

A
90 (A,B)

214.5 (A,B)

26

60

61.5 (DB)

12

124.5 (PG)

129.5 (PG)
Spline

174

278 H7

288

10 (M)

12

2 x 4-M8-17

17.5

35
(PG)

PG port
G1/4-15

24.4
1.65

PG
DB

28.6

0
-0.21

29.6 -0.2

M
25
A

Inlet port Outlet port Direction of rotation

viewed from shaft end
A

Clockwise

Counterclockwise

Details of JIS involute spline

Eff. Spline I'th

detail of shaft end

36

Rotation

+0.14
0

Groove for retaining ring

to JIS B 2804

10 x

10- 13

=
36

Hydraulic symbol
(CHB type)

Number of teeth
Module

16
1.667

Performance
Oil temperature: 50C
Viscosity: 30mm2/s (cSt)
The values given in the below figures are mean ones, and not guaranteed ones.

Mechanical efficiency

Volumetric efficiency
P = 9.8 MPa
(100kgf/cm2)

100

90

Volumetric efficiency %

Mechanical efficiency %

100

P = 29.4 MPa
(300kgf /cm2)
P=19.6 MPa
(200kgf /cm2)
P = 9.8 MPa
(100kgf /cm2)

80

1,000

2,000

P = 19.6 MPa
(200kgf/cm2)
P = 29.4 MPa
(300kgf/cm2)
90

80

3,000

1,000

Speed min -1

Starting mechanical efficiency

3,000

min -1

Leakage

3
(30)

0
10

85%

2
(20)

Leakage L / min

Starting output torque Nm (kgfm)

2,000

Speed

1
(10)

9.8 (100)

19.6 (200)

P = 29.4 MPa
(300kgf/cm2)
2

29.4 (300)

1,000

Min. boost pressure

MPa ( kgf /cm2 )

0.5
(5)

1,000

Speed

2,000

min -

3,000

Bearing life

No
N

Lo

(Lo: calculated life for No)

4.9 (50)

9.8 (100)

Braking pressure MPa (kgf/cm2)

50,000

Calculated bearing life h

L=

The calculated life (B10 life) shown in this graph is for speed
No=1,000 min-1
Calculation of life for a random speed N is as follows.

3,000

min -1

Shaft creep speed

Shaft creep speed min -1

Min. boost pressure (at M port or the suction port)

2,000

Speed

Effective pressure MPa ( kgf /cm2)

20,000
10,000
5,000

2,000
1,000
4.9
( 50 )

9.8
(100)

Pressure MPa

19.6
(200)

29.4
(300)

39.2
(400)

( kgf/cm2)

 Use range

Max. speed: 1,850 min-1

Pressure MPa ( kgf /cm2)

32.4
(330)

Rated output torque: 670 Nm

(68 kgfm)
Rated output power: 101 kW
0

Speed min-1

Applicable max. brake torque: 843 Nm

(86 kgfm)

1,850

Displacement: 129.2 cm

Brake release pressure: 3.4 MPa

(34 kgf /cm2)

Rated pressure: 32.4 MPa

(330 kgf /cm2)

Max. brake release pressure: 4.9 MPa

(50 kgf/cm2)

Max. pressure: 39.2 MPa

(400 kgf /cm2)

Mass: 47 kg

Dimensions
CHB type

2 x 4-M10
Deep 20

DB port: G3 / 8 - 15
M port: G3 / 4 - 20

2-

301
PG port
G1/4-15

236 (M,DB)

61

192.5 (A,B)

22.2

20

47.6

123 (PG)

68

20
4- 18

118 (PG)

DB
M

165

25 (M)

114 (A,B)

70 (DB)

224 (P.C.D.)

160

191

Spline

68

36.8
+0.14

1.65

33 -0.25

34.7 -0.2

Groove for retaining ring

to JIS B 2804

PG
DB
M

36.4
Eff. spline I'th

detail of shaft end

Rotation
Inlet port Outlet port Direction of rotation
viewed from shaft end
A

Clockwise

Counterclockwise

Details of JIS involute spline

A

Hydraulic symbol
(CHB type)

Number of teeth
Module

19
1.667

Performance
Oil temperature: 50C
Viscosity: 30mm2/s (cSt)
The values given in the below figures are mean ones, and not guaranteed ones.

Mechanical efficiency

Volumetric efficiency
100

P=29.4, 32.4 MPa

(300, 330kgf /cm2)
90

P=9.8 MPa
(100kgf /cm2)

80

P=19.6 MPa
(200kgf/cm2)

1,000

1,000

3,000

P=32.4 MPa
(330kgf/cm2)

0%
4

6
(60)

Leakage L / min

5%

8
4
(40)

2
(20)

P=29.4 MPa
(300kgf/cm2)

P=19.6 MPa
(200kgf/cm2)

9.8 (100)

19.6 (200)

29.4 (300)

39.2 (400)

1,000

Speed

Effective pressure MPa ( kgf /cm2)

0.5
(5)

1,000

2,000

min -1

Shaft creep speed

Shaft creep speed min -1

Min. boost pressure (at M port or the suction port)

Min. boost pressure
MPa ( kgf /cm2 )

min -1

Leakage

10

P=32.4 MPa
(330kgf/cm2)

Speed

8
(80)

P=19.6 MPa
(200kgf/cm2)

P=9.8 MPa
(100kgf/cm2)

P=29.4 MPa
(300kgf/cm2)

90

80

2,000

Speed min -1

Starting mechanical efficiency

Starting output torque Nm (kgfm)

Volumetric efficiency %

Mechanical efficiency %

100

2,000

Speed min -1

0.5

4.9 (50)

9.8 (100)

Braking pressure MPa (kgf/cm2)

Bearing life

No
L=
N

Lo

(Lo: calculated life for No)

50,000

Calculated bearing life h

The calculated life (B10 life) shown in this graph is for speed
No=1,000 min-1
Calculation of life for a random speed N is as follows.

20,000
10,000
5,000

2,000
1,000
4.9
( 50 )

9.8
(100)

Pressure MPa

19.6
(200)

29.4
(300)

39.2
(400)

( kgf/cm2)

10

 Use range

Max. speed: 1,680 min-

Pressure MPa ( kgf /cm2)

32.4
(330)

Rated output torque: 932 Nm

(95 kgfm)
Rated output power: 163 kW
0

Applicable max. brake torque: 1,250 Nm

(127 kgfm)

1,680
Speed min-1

Displacement: 180.1 cm3

(169.4 cm3)

Brake release pressure: 3.3 MPa

(33 kgf /cm2)

Rated pressure: 32.4 MPa

(330 kgf /cm2)

Max. brake release pressure: 4.9 MPa

(50 kgf/cm2)

Max. pressure: 39.2 MPa

(400 kgf /cm2)

Mass: 61 kg

Dimensions
DB port: G1/2- 19

CHB type

2 x 4-M12-17.5

22.2

20

277.5
A

B 75
20

142.5 (PG)
Spline

32.8
Eff. spline I'th

Rotation

27.5
PG

Eff. spline I'th

detail of shaft end

Groove for retaining ring

to JIS B 2804

42.5 -0.25

Groove for retaining ring

to JIS B 2804

44.5 -0.2

+0.14

1.9

42.5 -0.25

+0.14

1.9

detail of shaft end

29

33.3

PG port
G1/4-15

44.5 -0.2

2- 20

PG port
G1/4-15

226 (DB)

PG

DB

DB
M
A

Hydraulic symbol
(AOB type)

Inlet port Outlet port Direction of rotation

viewed from shaft end
A

Clockwise

Counterclockwise

Details of JIS involute spline

A

Hydraulic symbol
(CHB type)
11

160 f7
224 (P.C.D)

191
139 (PG)

8 (M)
117 (A,B)

85 (DB)

131 (DB)
Spline

47.6

218 (A,B)
4- 18

120 (A,B)

4- 18

20

268 (M,DB)

63

191
160 f7
224 (P.C.D)

68

269

240 (A,B)

60.8

2 x 4-M10
Screw depth 20

72

2-

M5X180-169

DB port: G1/2- 19
M port: G1- 24

78 (DB)
172

AOB type

Number of teeth

16

Module

2.5

Performance
Oil temperature: 50C
Viscosity: 30mm2/s (cSt)
The values given in the below figures are mean ones, and not guaranteed ones.

Mechanical efficiency

Volumetric efficiency

P=29.4 MPa
(300kgf /cm2)
P=19.6 MPa
(200kgf /cm2)
P=9.8 MPa
(100kgf/cm2)

90

80

1,000

Speed

P=29.4 MPa
(300kgf/cm2)
90

1,000

Speed

2,000

min -1

Leakage

8
(80)

P=29.4 MPa
(300kgf/cm2)

0
10

6
(60)

85

Leakage L / min

Starting output torque Nm (kgfm)

P=19.6 MPa
(200kgf/cm2)

80

2,000

min -1

Starting mechanical efficiency

4
(40)

2
(20)

P=19.6 MPa
(200kgf/cm2)

3
2
1

0
0

9.8 (100)

19.6 (200)

29.4 (300)

1,000

Speed

Effective pressure MPa ( kgf /cm2)

0.5
(5)

1,000

2,000

Speed min -1

The calculated life (B10 life) shown in this graph is for speed
No=1,000 min-1
Calculation of life for a random speed N is as follows.

L=

No
N

Lo

(Lo: calculated life for No)

Calculated bearing life h

Bearing life

0.5

4.9 (50)

9.8 (100)

Braking pressure MPa (kgf/cm2)

M5X180AOB

M5X180CHB

50,000

50,000

Calculated bearing life h

2,000

min -1

Shaft creep speed

Shaft creep speed min -1

Min. boost pressure (at M port or the suction port)

Min. boost pressure
MPa ( kgf /cm2 )

P=9.8 MPa
(100kgf/cm2)

100

Volumetric efficiency %

Mechanical efficiency %

100

20,000
10,000
5,000

2,000

10,000
5,000

2,000
1,000

1,000
4.9
( 50 )

20,000

9.8
(100)

19.6
(200)

29.4
(300)

Pressure MPa ( kgf/cm2)

39.2
(400)

4.9
( 50 )

9.8
(100)

19.6
(200)

29.4
(300)

39.2
(400)

Pressure MPa ( kgf/cm2)

12

 Use range

Max. speed: 1,400 min-1

Pressure MPa ( kgf /cm2)

29.4
(300)

Rated output torque: 980 Nm

(100 kgfm)
Rated output power: 144 kW
0

Applicable max. brake torque: 1,380 Nm

(141 kgfm)

1,400
Speed min-1

Displacement: 210.1 cm

Brake release pressure: 3.4 MPa

(35 kgf /cm2)

Rated pressure: 29.4 MPa

(300 kgf /cm2)

Max. brake release pressure: 4.9 MPa

(50 kgf/cm2)

Max. pressure: 34.3 MPa

(350 kgf /cm2)

Mass: 66 kg

Dimensions
CHB type

2 x 4-M10-20

72

2-

2-

20

184
78 (DB)

265 (M,DB)

PG port
G1/4-15
33.3

134 (PG)

Spline
PG port
G1/4-15

+0.14

1.9

B
68

268 (P.C.D)

230

140 (PG)

134 (PG)

231 (DB)

Spline

22

14 (PG)

90 (DB)

140 (PG)

200 H7

11

215 (A,B)

124 (A,B)

77.3

127 (A,B)

4- 17

22

311

B 75

230
200 H7
268 (P.C.D)

11

4- 17

263.5
226 (A,B)

77.3

47.6
20

14 (PG)

2 x 4-M12-17.5

DB port: G1/2- 19
M port: G1- 24

22.2

DB port: G1/2- 19

AOB type

Groove for retaining ring

to JIS B 2804

42.5 -0.25

44.5 -0.2

Rotation
PG

32
Eff. spline I'th

PG

DB

DB
M

detail of shaft end

Hydraulic symbol
(AOB type)

Clockwise

Counterclockwise

Details of JIS involute spline

A

Hydraulic symbol
(CHB type)
13

Inlet port Outlet port Direction of rotation

viewed from shaft end

Number of teeth

16

Module

2.5

Performance
Oil temperature: 50C
Viscosity: 30mm2/s (cSt)
The values given in the below figures are mean ones, and not guaranteed ones.

Mechanical efficiency

Volumetric efficiency

P=29.4 MPa
(300kgf /cm2)
P=19.6 MPa
(200kgf /cm2)

90

P=9.8 MPa
(100kgf /cm2)

80

1,000

P=19.6 MPa
(200kgf/cm2)
P=29.4 MPa
(300kgf/cm2)
90

80

2,000

Speed min -1

1,000

Speed

Starting mechanical efficiency

2,000

min -1

Leakage

10
(100)

P=29.4 MPa
(300kgf/cm2)

0
10

%
Leakage L / min

85
5
(50)

9.8 (100)

19.6 (200)

Effective pressure MPa

P=19.6 MPa
(200kgf/cm2)

1,000

Speed

2,000

min -

9.8 (100)

4.9 (50)

Braking pressure MPa (kgf/cm2)

50,000

Calculated bearing life h

(Lo: calculated life for No)

2,000

min -1

The calculated life (B10 life) shown in this graph is for speed
No=1,000 min-1
Calculation of life for a random speed N is as follows.

Lo

1,000

Shaft creep speed

Bearing life

No
L=
N

Speed

0.5
(5)

29.4 (300)

( kgf /cm2)

Min. boost pressure (at M port or the suction port)

Min. boost pressure
MPa ( kgf /cm2 )

Shaft creep speed min -1

Starting output torque Nm (kgfm)

P=9.8 MPa
(100kgf /cm2)

100

Volumetric efficiency %

Mechanical efficiency %

100

20,000
10,000
5,000

2,000
1,000
4.9
( 50 )

9.8
(100)

19.6
(200)

29.4
(300)

39.2
(400)

Pressure MPa ( kgf/cm2)

14

Specifications

1MPa=10.197kgf/cm2
1Nm=0.10197kgfm

Displacement Rated pressure Max. speed Theoretical

output
Gear ratio
(cm3)
(MPa)
(min-1)
torque
(Nm)

Model

M2X63-RG 06

1,229

28.0

115

5,450

Shaft type

19.2

Applicable max.
brake torque
(Nm)

Mass

6,030

104

17,500

203

(kg)

with Swing pinion

M5X130-RG10

2,437

27.4

92

10,600

20.0

M5X180-RG 16

4,128

23.0

67

16,500

25.0

Involute spline
(JIS)

30,300

331

M5X180-RG 20

4,264

29.4

77

20,000

21.8

with Swing pinion

26,400

419

Calculated bearing life (B10 life)

100,000

50,000

Calculated bearing life h

20,000

10,000

RG10

5,000

RG06

RG20

RG16

2,000
The calculated life obtained in this graph is
for the speed of 50 min-1 and the load point
of (center of effective face width)

1,000

Limited restricted by
the shaft strength

As the value increases, both the calculated

bearing life and the shaft strength limit will
decrease.

500

200
0

4 10 4
(5)

9.8 10 4
(10)

14.7
(15)

10 4

Radial force acting on the driving shaft

19.6
(20)

N (Ton)

The bearing life is in inverse proportion to the speed.

Other Caution
(1) The strength of gears is influenced by the operating pressure. Please consult us. if necessary.
(2) Use gear oil equivalent to GL-3 or GL-4 of API classification.

15

10 4

24.5
(25)

10 4

Dimensions
M2X63-RG 06
M5X130-RG 10
M5X180-RG 16
M5X180-RG 20

D
E
A

F
G

O
N

Model

M2X63-RG 06

113

76

73

487

442

230

22

25

323

200f8

M5X130-RG 10

162

102

94

568

578

284

30

15

410

310f7

M5X180-RG 16

168

80

74

578

527

271

32

15

570

390f8

M5X180-RG 20

182

112

110

676

625

407

30

15

528

380f7

Model

M2X63-RG 06

260

90

159

9 18+1 20
(reamer hole) (36 pitch)

290

m=10, z=12, (with pinion)

M5X130-RG 10

305

114

166

11 22+1 24
(reamer hole) (30 pitch)

360

m=12, z=13, (with pinion)

M5X180-RG 16

424

117

184

16 20
(22.5 pitch)

520

m=5, z=20, involute spline

(JIS)

M5X180-RG 20

445

117

184

14 25
(12.857 pitch)

484

m=14, z=14, (with pinion)

16

CAUTION FOR OPERATING

CAUTION

1. Operating fluid and temperature range

Please use antiwear hydraulic fluid as operating fluid.
The allowable ranges of operating fluid are as follows.
Viscosity: 10 ~ 1,000 mm2/s (cSt)
Temperature: -20 ~ + 90C
In case of using special fluid (Phosphate ester compounds, water-glycol fluid, fatly
acid ester compounds, etc.) please consult us for instructions prior to use.

CAUTION

2. Filtration
For satisfactory service life of these motors application, the operating fluid should be
controlled cleaner than the cleanliness level of NAS1638 Class9. Install a 10 m filter in
the return circuit of respective actuators.

CAUTION

3. Mounting
The motor should be installed with the shaft either horizontal or vertically down.
Alignment should be so carried out that the parallel error may be held within
0.05 mm.

CAUTION

4. Drain piping
The motor's drain port, as shown in the following figure, should be so located that the
casing can be filled with oil.
Use a drain tube bigger in size than the motor's port. Keep the casing pressure
normally below 0.2 MPa (2kgf/cm2) and below 0.6 MPa (6kgf/cm2) even at the peak.

17

CAUTION

5. Oil filling and air venting

Before operation, be sure to fill the casing with oil through the
drain port (DB port). Vent all air out of the motor and hydraulic
circuit prior to operation. The insufficient amount of oil may
cause the lubrication failure, resulting in the seizure of internal
parts. The values given in the table below are the amount of oil
in the motor case.

Model
Amount of oil
(L)

M2X63 M2X130 M2X180 M2X210

0.5

0.8

1.0

1.5

WARNING

6. Parking brake
This brake should be used only for parking, are not for dynamic braking. In case of
driving inertial load, measures such as the adoption of the time delay valve should be
taken to prevent the parking brake from being activated before the inertial mass stops.

WARNING

7. Radial and thrust load

Do not apply radial or thrust load to the shaft of these motors. In case of possible
occurrence of the above-stated load at the shaft, provide an additional bearing unit
on the driven side.
In case the sun gear of a planetary gear box is driven, the above-stated bearing unit
is not always required. However, careful alignment should be carried out to avoid
unbalance force to the shaft from the gear box.
Radial or thrust load may be applied to the shaft of the M2X/M5X-RG Series. Such
load, however, will affect the bearing life and the shaft strength. Refer to the data on
page 15.

CAUTION

8. Cavitation
When the motor is operating in an overrunning (pumping) mode, then to prevent the
occurrence of cavitation, a positive boost pressure is required at the M port or the
suction port. Please ensure that the minimum boost pressure requirement shown in the
model performance data is always available.

CAUTION

9. Back pressure
The lower of the two main motor ports pressures should always be less than 2.5 MPa
(25kgf/cm2). Pressure higher than this could cause a possible reduction in motor
performance. In case of any doubt please consult.
18

Head Office / Main Plant

234, Matsumoto, Hasetani-cho, Nishi-ku, Kobe 651-2239, Japan
Phone: 81-78-991-1133 Fax: 81-78-991-3186

Tokyo Office
World Trade Center Bldg., 4-1, Hamamatsu-cho 2-chome, Minato-ku, Tokyo 105-6116, Japan
Phone: 81-3-3435-6862 Fax: 81-3-3435-2023

Kobe Office
Kobe Crystal Tower, 1-3, Higashikawasaki-cho 1-chome, Chuo-ku, Kobe, 650-8680, Japan
Phone: 81-78-360-8608 Fax: 81-78-360-8609

http://www.khi.co.jp/kpm/

Kawasaki Precision Machinery (UK) LTD.

Ernesettle Lane, Ernesettle, Plymouth, Devon PL5 2SA, United Kingdom
Phone: 44-1752-364394 Fax: 44-1752-364816

http://www.kpm-eu.com

Kawasaki Precision Machinery of America

Division of Kawasaki Motors Corp., U.S.A.
5080, 36th St. S.E. Grand Rapids, MI 49512, U.S.A.
Phone: 1-616-949-6500 Fax: 1-616-975-3103

http://www.kawasakipmd.com

Flutek, Ltd.
192-11, Shinchon-dong, Changwon, Kyungnam, 641-370 Korea
Phone: 82-55-286-5551 Fax: 82-55-286-5553

KK HYDRAULICS SALES (SHANGHAI) LTD.

B-908 Far East International Plaza 317 Xianxia Rd, Shanghai 200051
Phone: 86-21-62351606 Fax: 86-21-62957080

OVERSEAS OFFICES

Seoul Office
c/o Kawasaki Machine Systems Korea, Ltd. 3rd Floor (307), Industrial Complex Support Bldg., 637,
Kojan-Dong, Namdong-Gu, Incheon,
405-817, Korea
Phone: 82-32-821-6941
Fax: 82-32-821-6947

Beijing Office
Room No.2602, China World Tower 1, China World Trade Center, No.1 Jian Guo Men Wai Avenue,
Beijing 100004, People's Republic of China
Phone: 86-10-6505-1350
Fax: 86-10-6505-1351

Shanghai Office
13th Floor, HSBC Tower, 101 Yin Cheng East Road, Pudong New Area, Shanghai 200120,
People's Republic of China
Phone: 86-21-6841-3377
Fax: 86-21-6841-2266

Taipei Office
15th Floor, Fu-Key Bldg., 99 Jen-Ai Road Section 2, Taipei, Taiwan
Phone: 886-2-2322-1752
Fax: 886-2-2322-5009

Bangkok Office
17th Floor, Ramaland Bldg., 952 Rama IV Road, Bangrak, Bangkok 10500 Thailand
Phone: 66-2-632-9511
Fax: 66-2-632-9515

Kuala Lumpur Office

Letter Box No. 162, 6th Floor, UBN Tower, 10 Jalan P. Ramlee 50250, Kuala Lumpur, Malaysia
Phone: 60-3-2070-5141
Fax: 60-3-2070-5148

Jakarta Office
12th Floor, Skyline Bldg., Jl. M. H. Thamrin 9, Jakarta 10340, Indonesia
Phone: 62-21-314-0737
Fax: 62-21-314-1049

OVERSEAS SUBSIDIARIES

Kawasaki Heavy Industries (U.S.A.), Inc.

599 Lexington Avenue, Suite 3901, New York, NY 10022, U.S. A.
Phone: 1-212-759-4950
Fax: 1-212-759-6421

Houston Branch
333 Clay Street, Suite 4310, Houston, TX 77002-4103, U. S.A.
Phone: 1-713-654-8981 Fax: 1-713-654-8187

Kawasaki do Brasil Indstria e Comrcio Ltda.

Avenida Paulista 542-6 Andar, Bela Vista, 01310-000, So Paulo, S.P., Brazil
Phone: 55-11-3289-2388
Fax: 55-11-3289-2788
Kawasaki Heavy Industries (U.K.) Ltd.
4th Floor, 3 St. Helen's Place, London EC3A 6AB, U.K.
Phone: 44-20-7588-5222
Fax: 44-20-7588-5333
Kawasaki Heavy Industries ( Europe) B.V.
7th Floor, Riverstaete, Amsteldijk 166, 1079 LH Amsterdam, The Netherlands
Phone: 31-20-6446869
Fax: 31-20-6425725
Kawasaki Heavy Industries ( H.K.) Ltd.
Room 4211-16, Sun Hong Kai Centre 30 Harbour Road, Wanchai
Hong Kong People's Republic of China
Phone: 852-2522-3560
Fax: 852-2845-2905
Kawasaki Heavy Industries (Singapore) Pte. Ltd.
6 Battery Road, #18-04, Singapore 049909
Phone: 65-6225-5133~4
Fax: 65-6224-9029

Materials and specifications are subject to change without manufacturer's obligation.