Product Description:

The MSK040C-0450-NN-M1-UG1-NSNN is a synchronous servomotor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It converts regulated current from a drive controller into controlled rotary motion, supplying repeatable torque for packaging lines, pick-and-place axes, and small machining spindles. Integrated feedback, an electrically released brake, and explosion-protected construction allow the motor to support closed-loop motion where accurate positioning and secure standstill holding are required. Its compact design also suits machines that need servo performance without external cooling hardware.

The housing is cooled by natural convection, so heat leaves the frame without fans or liquid circuits, which simplifies machine layout. A frame size of 040 gives the motor a compact flange and stator diameter, while the C length adds active stack for higher continuous torque within the same basic frame. Winding code 0450 matches the electrical characteristics used by compatible drives for nominal voltage and current. Connections exit through a 240° rotatable plug, which helps cable routing in tight spaces and reduces strain near guards or tooling. Position data is transmitted over the Hiperface interface, and the encoder provides 128 signal periods per mechanical turn before interpolation for smooth velocity control.

The feedback system uses optical sensing and supports multiturn absolute position tracking, so the controller retains shaft position after power loss without a homing cycle. An electrically released holding brake provides 4 Nm of static torque to hold the axis at standstill when motion is intentionally stopped. The rotor ends in a plain shaft, giving a simple cylindrical interface for couplings or pulleys where low backlash is important. The motor is suitable for standard duty and designated explosion-risk zones, and the passive cooling method helps maintain stable operating temperatures during continuous use.