Model No.

Screw
shaft OD
d

Lead
l

Ball center-to-
center diameter
dp

Thread minor
diameter
d3

No. of loaded
circuits/
Rows×turns

Basic load rating

Note) 1
Rigidity
K
N /μm

Ca
kN

C0a
kN

BLW 1510-5.6

15

10

15.75

12.5

2×2.8

14.3

27.8

680

BLW 1616-3.6

16

16

16.65

13.7

2×1.8

7.1

14.3

440

BLW 2020-3.6

20

20

20.75

17.5

2×1.8

11.1

24.7

570

BLW 2525-3.6

25

25

26.0

22.0

2×1.8

16.6

38.7

700

BLW 3232-3.6

32

32

33.25

28.3

2×1.8

23.7

59.5

880

BLW 3636-3.6

36

36

37.4

31.7

2×1.8

30.8

78.0

980

BLW 4040-3.6

40

40

41.75

35.2

2×1.8

38.7

99.2

1090

BLW 5050-3.6

50

50

52.2

44.1

2×1.8

57.8

155.0

1340

Model No.

Nut dimensions

Screw-shaft inertial
moment per mm
kg‧cm²/mm

OD

Flange
diameter
D1

Overall
length
L

H

B1

B2

D2

B3

PCD

d1

T

h

Oiling port
A

BLW 1510-5.6

43

64

89

10

69

18.7

34

28.6

52

5.5

46

5

M6×1

3.90×10^-4

BLW 1616-3.6

41

60

84.5

10

65.5

18.1

32

27.1

49

4.5

44

6

M6×1

5.05×10^-4

BLW 2020-3.6

48

69

105

10

84

25

39

36

57

5.5

50

5

M6×1

1.23×10^-3

BLW 2525-3.6

57

82

124.5

12

101.5

33

47

44

68

6.6

60

5

M6×1

3.01×10^-3

BLW 3232-3.6

68

99

155

15

127

42.4

58

55.4

81

9

70

6

M6×1

8.08×10^-3

BLW 3636-3.6

79

116

181

17

147.9

49.4

66

65.4

95

11

82

7

M6×1

1.29×10^-2

BLW 4040-3.6

84

121

191

17

158

54.5

73

70.5

100

11

87

7

M6×1

1.97×10^-2

BLW 5050-3.6

106

149

245

20

203.8

70.7

90

91.7

126

14

108

8

M6×1

4.82×10^-2