Mitsumi electronic IB-1500875(ENG)-E ユーザーズマニュアル

4 - 4

Machine accuracy of the servo motor's output shaft and around the installation part is as below. 

(Excluding special products)

1. Use a flexible coupling when connecting with a ball screw, etc., and keep the shaft core deviation 

to below the tolerable radial load of the shaft.

2. When directly installing the gear on the motor shaft, the radial load increases as the diameter of the 

gear decreases. This should be carefully considered when designing the machine.

3. When directly installing the pulley on the motor shaft, carefully consider so that the radial load 

(double the tension) generated from the timing belt tension is less than the values shown in the 

table above.

4. In machines where thrust loads such as a worm gear are applied, carefully consider providing 

separate bearings, etc., on the machine side so that loads exceeding the tolerable thrust loads are 

not applied to the motor.

a

0.05

0.06

0.08

0.08

b

0.04

0.04

0.06

0.08

c

0.02

0.02

0.03

0.03

a 

c

b