THK LBF BALL SPLINE

Model No.

Spline-nut dimensions

Outer
diameter
D

Outer
diameter
D
Tolerance

Length
L

Length
L
Tolerance

Flange
diameter
D₁

Flange
diameter
D₁
Tolerance

H

F

Oiling
port
d₀

LBF 15

23

40

43

7

13

2

LBF 20

30

50

49

7

18

2

LBF 25

37

60

60

9

21

2

LBF 30

45

70

70

10

25

3

LBF 40

57

90

90

14

31

3

LBF 50

70

100

108

16

34

4

LBF 60

85

127

124

18

45.5

4

LBF 70

95

110

142

20

35

4

LBF 85

115

140

168

22

48

5

LBF 100

135

160

195

25

55

5

Model No.

Basic torque
rating

Basic load
rating
(radial)

Static
permissible
moment

Mass

PCD

Mounting
hole
d₁×d₂×h

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

LBF 15

32

4.5×8×4.4

30.4

74.5

4.4

8.4

25.4

185

0.11

1.0

LBF 20

38

4.5×8×4.4

74.5

160

7.8

14.9

60.2

408

0.20

1.8

LBF 25

47

5.5×9.5×5.4

154

307

13.0

23.5

118

760

0.36

2.7

LBF 30

54

6.6×11×6.5

273

538

19.3

33.8

203

1270

0.60

3.8

LBF 40

70

9×14×8.6

599

1140

31.9

53.4

387

2640

1.2

6.8

LBF 50

86

11×17.5×11

1100

1940

46.6

73.0

594

4050

1.9

10.6

LBF 60

102

11×17.5×11

1870

3830

66.2

121

1300

8280

3.5

15.6

LBF 70

117

14×20×13

2190

3800

66.4

102

895

6530

3.6

21.3

LBF 85

138

16×23×15.2

3620

6360

90.5

141

2000

12600

6.2

32

LBF 100

162

18×26×17.5

5910

12600

126

237

3460

20600

11.0

45