8. Appendix
8-3
CSKR
8-3
Permissible input torque
z
Table 2 shows the permissible input torque when the product is directly coupled with a motor.
If you use a motor that exceeds the permissible input torque, consider taking necessary
measures such as limiting the motor torque.
Table 2 Permissible input torque
Model number
Ball screw lead
(mm)
Outer diameter of ball
screw shaft end
(mm)
Permissible input torque
(N·m)
CSKR20
1
4
0.207
6
0.422
CSKR26
2
5
0.435
6
0.802
CSKR33
6,10,20
8
3.25
CSKR46
10,20
10
5.316
* The permissible input torque values above (excluding some models) are each
calculated from the torsion strength of the ball screw shaft end.
•
Models whose permissible input torques are limited by the static permissible load (axial direction) of the
support bearing section:
à
CSKR26 (lead: 2 mm)
•
Models whose permissible input torques are limited by the static rated load of the ball screw:
à
CSKR20 (lead: 1 mm)
Note) The permissible input torque in case of the wrap-around motor specification differs from the
table above. Contact THK for details.
8. Appendix
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