Product Description:

The MSK075E-0300-FN-M2-UG0-RNNN is an IndraDyn S synchronous servo motor built by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. In automated production lines, this motor couples directly to gear stages, ball screws, or timing pulleys to deliver controlled rotary motion under closed-loop drive regulation. Its electromagnetic design targets high torque density and low cogging, making it suitable for indexing tables, gantry axes, and other positioning duties where repeatable speed and angle control are needed to coordinate tooling, sensors, and material flow. The motor also responds quickly to current changes from the drive, which helps axes accelerate, decelerate, and settle accurately during repetitive machine cycles.

Thermal management relies on liquid cooling, so waste heat is removed by a coolant circuit rather than by ambient airflow. This raises continuous output capability and helps stabilize housing temperature during slow-speed, high-torque operation. Position feedback is handled by an optical encoder that communicates through EnDat2.1, and the read head resolves 2048 signal periods per mechanical turn for fine commutation and accurate position control. The motor is delivered without a holding brake, allowing free back-driving when drive torque is removed. A rotatable 240° encoder connector eases cable routing in compact cabinets. A plain shaft transmits torque without a keyway, and the housing carries an IP65 ingress rating against dust and water.

The encoder also provides Multiturn Absolute position storage, preserving count information across power cycles and reducing the need for a reference move after startup. The motor operates safely within 0–40 °C ambient conditions, and insulation class 155 supports the winding system at elevated internal temperatures. Winding code 0300 indicates the electrical characteristics selected for medium-speed applications, while length code E and the 075 frame dimension work with increased concentricity machining to keep radial runout low. Lower radial runout is useful when the motor is coupled to precision gear units, belt stages, or other components that benefit from stable shaft rotation.