Product Description:

The MSK071C-0300-NN-S1-UP1-NNNN is an IndraDyn S synchronous servomotor manufactured by Bosch Rexroth Indramat and supplied within the MSK IndraDyn S Synchronous Motors series. It is intended for closed-loop motion control where precise torque and speed regulation are required for automated handling, forming, or assembly stations. A factory-installed holding brake and a high-resolution optical encoder let the motor maintain position during power removal and provide absolute shaft data to the servo drive. In service, the motor converts regulated current into repeatable rotary motion, which helps motion axes follow programmed acceleration, deceleration, and positioning commands with consistent response. That behavior is useful on synchronized axes that must stop, hold, and restart without noticeable lag.

The motor dissipates heat through natural convection, so no forced-air or liquid-cooling accessories are needed when mounting guidelines are observed. Its electrically released brake produces 23 Nm of static torque, allowing mechanical loads to remain locked without current flow. Position feedback travels over the Hiperface interface, and the scanning disc outputs 128 signal periods per revolution, giving the drive controller fine incremental resolution for commutation and positioning. Frame size 071 sets the flange dimensions and shaft height, making the unit suitable for gearboxes and machine frames that follow the MSK mounting pattern. This combination supports compact installation while preserving accurate feedback exchange between the motor and drive.

To simplify cable routing, the encoder connector can be rotated 240° while keeping the optical sensing elements free from strain. Because the feedback device is a single-turn variant, it reports absolute position within one mechanical revolution and is suited to axes that do not require multi-turn position retention after shutdown. Output torque is transferred through a shaft with keyway, which helps prevent slip under reversing loads and provides a positive mechanical connection to couplings or pulleys. Winding code 0300 identifies the stator’s electrical resistance and inductance, and together with motor length C and the standard housing design, it balances continuous current capability against installation depth. The arrangement is well suited to compact machine modules where cable direction and motor length must be managed carefully.