Product Description:

The MSK103B-0300-NN-M1-UG1-NNNN synchronous servomotor is produced by Bosch Rexroth Indramat as part of the MSK IndraDyn S Synchronous Motors series. In industrial automation, this motor acts as an electromechanical transducer that follows drive controller commands to position axes with high accuracy. It converts electrical input into controlled rotary motion for packaging, material-handling, and machining tasks that require repeatable movement and integrated holding capability.

Heat is removed by natural convection, so the housing transfers thermal energy directly to the surrounding air without external blowers. A protection rating of IP65 seals the stator and terminal area against dust ingress and low-pressure water jets, permitting installation on open machine frames. The electrically released holding brake develops 33 Nm of static torque, keeping vertical or load-bearing axes fixed when power is off. Position data travels through the Hiperface interface, allowing synchronous exchange of rotor angle and temperature information between the optical encoder and the drive. Within the encoder, the fine track provides 128 signal periods per mechanical revolution, supplying detailed feedback that improves velocity loop stability and contour accuracy.

The encoder is a multi-turn absolute device, so it preserves position over multiple shaft revolutions after a power cycle and reduces the need for a startup reference move. Its plug is rotatable through 240°, allowing the cable exit to be directed away from nearby components in tight installations. Continuous operation is specified for ambient conditions from 0 to 40 °C, which suits typical industrial operating environments. Class 155 insulation tolerates winding temperatures up to 155 °C, supporting reliable operation during cyclic loads. This combination of encoder retention, flexible connector orientation, and thermal endurance supports precise axis control during repeated machine cycles.