Product Description:

The MSK040B-0450-NN-M3-UG0-NNNN is a synchronous servo motor produced by Bosch Rexroth Indramat as part of the MSK IndraDyn S Synchronous Motors series. In automated production cells, this motor executes closed-loop position and speed tasks for pick-and-place axes, tool spindles, and feeder drives. Its compact frame and high-resolution feedback make it appropriate for machinery that must deliver repeatable motion profiles and tight synchronization between multiple mechanical elements.

Cooling relies on natural convection, so heat leaves the housing without external blowers. The feedback unit communicates through the Hiperface interface, a single-cable link that transfers position data and sensor power. A capacitive system inside that module generates 16 signal periods per electrical revolution, while the counter provides a multi-turn absolute range. The encoder connector turns 240°, letting cables exit in a preferred direction. Sealing is rated at IP65 for dust-tightness and resistance to low-pressure water. Permitted ambient temperatures range from 0 to 40 °C. Frame size 040 and length code B set the external envelope, and the motor is delivered without a holding brake for axes that use external clamping.

The housing uses the standard design variant for this series, so the centering pilot, mounting threads, and flange face align with common MSK fixtures. Torque is transmitted through a plain shaft that omits keys or serrations, which suits backlash-free clamp couplings. Electrical integrity is supported by insulation class 155, permitting winding temperatures associated with Class F materials during cyclic duty. Internal copper geometry is identified by winding code 0450, which sets the voltage constant and rated current used by a compatible IndraDrive controller for commutation.