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THK BLR

THK BLR

Model No.

Screw
shaft OD
d

Thread
minor
diameter

d3

Lead
l

Basic load rating

Ball
center-to-
center
diameter
dp

Support-
bearing
basic load
rating

Nut inertial
moment
kg
μcm2

Precision product

Rolled product

Ca
kN

C0a
kN

Ca
kN

C0a
kN

Ca
kN

C0a
kN

BLR 1616-3.6

16

13.7

16

7.1

14.3

5.8

12.9

16.65

19.4

19.2

0.48

BLR 2020-3.6

20

17.5

20

11.1

24.7

7.7

22.3

20.75

26.8

29.3

1.44

BLR 2525-3.6

25

22.0

25

16.6

38.7

12.1

35.0

26.0

28.2

33.3

3.23

BLR 3232-3.6

32

28.3

32

23.7

59.5

17.3

53.9

33.25

30.0

39.0

6.74

BLR 3636-3.6

36

31.7

36

30.8

78.0

22.4

70.5

37.4

56.4

65.2

16.8

BLR 4040-3.6

40

35.2

40

38.7

99.2

28.1

89.8

41.75

59.3

74.1

27.9

BLR 5050-3.6

50

44.1

50

57.8

155.0

42.1

140.4

52.2

62.2

83.0

58.2

 

Model No.

Ball Screw dimensions

OD
D

Flange
diameter
A

Overall
length
L

Sh7

S1H7

H

F

B

T

W

W1

m

t

C

θ°

BLR 1616-3.6

52

0
-0.007

68

43.5

40

32

5

27.5

9

2

60

25

M4

12

4.5

40

BLR 2020-3.6

62

0
-0.007

78

54

50

39

6

34

11

2

70

31

M5

16

4.5

40

BLR 2525-3.6

72

0
-0.007

92

65

58

47

8

43

12.5

3

81

38

M6

19

5.5

40

BLR 3232-3.6

80

0
-0.007

105

80

66

58

9

55

14

3

91

48

M6

19

6.6

40

BLR 3636-3.6

100

0
-0.008

130

93

80

66

11

62

17

3

113

54

M8

22

9

40

BLR 4040-3.6

110

0
-0.008

140

98

90

73

11

68

16.5

3

123

61

M8

22

9

50

BLR 5050-3.6

120

0
-0.008

156

126

100

90

12

80

25

4

136

75

M10

28

11

50

 

1kN102kgf


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