Product Description:

The MSK040C-0450-NN-S1-UP1-NNNN is a synchronous servo motor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. As a compact rotary actuator, it converts drive controller commands into precise shaft motion for positioning, conveying, or cyclic handling tasks found in automated assembly lines and packaging machinery. Its compact format suits axes where installation space is limited but accurate motion is still required. The mechanical design is standard, so the housing geometry and mounting flanges match other motors in the series.

This unit uses natural convection for heat dissipation, so no external fan or liquid circuit is required; enclosure surfaces alone transfer the motor’s thermal load to ambient air. This cooling method keeps the motor package simple and avoids the added space required for separate cooling hardware. The winding code 0450 matches the rated voltage and current pairing expected by the drive electronics. Frame size 040 sets the stator diameter, while length code C indicates the active stack height that influences continuous torque capability. The motor uses a shaft with a keyway, which simplifies secure coupling to gearboxes or pulleys and helps prevent slip under dynamic reversal.

The feedback system is anchored by a rotatable 240° connector that eases cable routing. It communicates over the Hiperface protocol, so position and motor data travel on a combined two-wire channel instead of separate feedback links. Inside the encoder, optical scanning generates one revolution of absolute data in single-turn format with a base resolution of 128 signal periods, and this granularity helps the control loop maintain tight velocity and position error limits. When the axis must hold position without power, an electrically released brake delivers 4 Nm of static torque, removing the need for external clamps on vertical axes or loads that must remain in place during power-off conditions.