Product Description:

The MSK101D-0301-NN-M1-BG0-NSNN is an IndraDyn S synchronous servomotor produced by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. As a rotary actuator, it converts controlled electrical energy into mechanical torque for position and speed loops in automated machinery. The unit belongs to motor size 101 with length code D, and its design option covers both standard and explosion-protected installations. It interfaces with Rexroth drive controllers to form closed-loop axes that can execute precise motion profiles in automated production equipment.

Heat removal is handled by natural convection, so adequate free airflow around the housing is required and no external fan is needed. Rotor position is monitored by an optical encoder that integrates 128 signal periods per revolution and operates on a multi-turn absolute principle, letting the drive record mechanical angle over many revolutions without battery backup. The encoder communicates through the Hiperface interface, which combines power and data on a single cable and permits high-resolution feedback even at low speeds. This arrangement lets the axis retain position information after restart and supports controlled motion at very low speed.

The motor is sealed to IP65, blocking dust ingress and low-pressure water jets so it can be mounted directly on machines without extra covers. A plain shaft simplifies coupling to gearboxes or direct-drive loads, and the power connector is located on the B-side to keep cabling parallel to the machine frame. Operation is permitted from 0 to 40 °C, matching typical machine environments, while insulation class 155 allows winding temperatures up to 155 °C before thermal limits are reached. The winding code 0301 sets the electrical constants, and the motor is supplied without a holding brake, so static load retention must be provided by the machine.