This chapter describes how to interpret the model numbers
of SGM7J Servomotors and gives their specifications, rat-
ings, and external dimensions.
Model Designations . . . . . . . . . . . . . . . . . . 4-2
Without Gears . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
With Gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Specifications and Ratings . . . . . . . . . . . . . 4-3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Ratings of Servomotors without Gears . . . . . . . . 4-4
Torque-Motor Speed Characteristics . . . . . . . . . 4-5
Ratings of Servomotors with Gears . . . . . . . . . . . 4-6
Load Moment of Inertia . . . . . . . . . . . . . . . . . . . . 4-9
Servomotor Heat Dissipation Conditions . . . . . 4-11
Applications Where the Surrounding Air
Temperature of the Servomotor Exceeds
40
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Applications Where the Altitude of
the Servomotor Exceeds 1,000 m . . . . . . . . . . . 4-12
External Dimensions . . . . . . . . . . . . . . . . . 4-13
Servomotors without Gears . . . . . . . . . . . . . . . . 4-13
Shaft End Specifications . . . . . . . . . . . . . . . . . . 4-15
Connector Mounting Dimensions . . . . . . . . . . . 4-16
Servomotors with Gears . . . . . . . . . . . . . . . . . . 4-17
Specifications,
Ratings, and External
Dimensions of
SGM7J Servomotors
4