THK LBS BALL SPLINE

Model No.

Spline-nut dimensions

Outer
diameter
D

Outer
diameter
D
Tolerance

Length
L

Length
L
Tolerance

Keyway
dimensions

r

Oiling
port
d₀

b
H8

t
+0.05
0

l

LBS 15

23

40

3.5

2

20

0.5

2

LBS 20

30

50

4

2.5

26

0.5

2

LBS 25

37

60

5

3

33

0.5

2

LBS 30

45

70

7

4

41

1.0

3

LBS 40

60

90

10

4.5

55

1.0

3

LBS 50

75

100

15

5

60

1.5

4

LBS 70

100

110

18

6

68

2.0

4

LBS 85

120

140

20

7

80

2.5

5

LBS 100

140

160

28

9

93

3.0

5

Model No.

Basic
torque
rating

Basic load
rating
(radial)

Static
permissible
moment

Mass

C_T
N•m

C_0T
N•m

C
kN

C₀
kN

1)
M_A.1
N•m

2)
M_A.2
N•m

Spline nut
kg

Spline shaft
kg/m

LBS 15

30.4

74.5

4.4

8.4

25.4

185

0.06

1.0

LBS 20

74.5

160

7.8

14.9

60.2

408

0.14

1.8

LBS 25

154

307

13.0

23.5

118

760

0.25

2.7

LBS 30

273

538

19.3

33.8

203

1270

0.44

3.8

LBS 40

599

1140

31.9

53.4

387

2640

1.0

6.8

LBS 50

1100

1940

46.6

73.0

594

4050

1.7

10.6

LBS 70

2190

3800

66.4

102

895

6530

3.1

21.3

LBS 85

3620

6360

90.5

141

2000

12600

5.5

32.0

LBS 100

5910

12600

126

237

3460

20600

9.5

45.0