Справочник Пользователя для Mitsubishi Electronics MDS-D-SPJ3

4 - 3

There is a limit to the load that can be applied on the motor shaft. Make sure that the load applied on the 

radial direction and thrust direction, when mounted on the machine, is below the tolerable values given 

below. These loads may affect the motor output torque, so consider them when designing the machine.

(Note 1) The tolerable radial load and thrust load in the above table are values applied when each motor is 

used independently.

(Note 2) The symbol L in the table refers to the value of L below.

L: Length from flange installation surface to center of load mass [mm]

245N (L=33)

147N

245N (L=33)

147N

392N (L=58)

490N

980N (L=55)

490N

2058N (L=79)

980N

88N (L=25)

59N

245N (L=30)

98N

392N (L=40)

147N

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.

 

Radial load

Thrust load

L