Product Description:

The MSK050B-0450-NN-M2-UG0-RNNN is a synchronous servomotor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. As an IndraDyn S unit, it delivers precise rotary motion for indexing tables, packaging axes, and automated pick-and-place modules used in industrial automation. The motor combines compact mechanical dimensions with an integrated feedback system so that Rexroth drive controllers can execute tight position loops without external encoders, supporting high throughput and repeatable positioning in multi-axis machines.

Thermal management is handled through natural convection, eliminating the need for active cooling devices and permitting operation in sealed cabinets. Feedback signals are exchanged over the EnDat2.1 serial interface, and the optical scale generates 2048 signal periods per mechanical revolution to provide fine angular resolution to the drive. A rotatable 240° connector lets the encoder plug exit in different directions for space-restricted panels. The housing meets the IP65 protection rating, which blocks dust ingress and water jets. Power is transmitted through a plain shaft that simplifies coupling to low-backlash gearboxes or directly to load-side clamping hubs.

The rotor and stator are machined for increased concentricity, which helps keep radial runout low when high-speed interpolation is required. Position memory across power cycles is supplied by a multi-turn absolute encoder, eliminating homing routines after startup. The motor operates in ambient temperatures from 0 to 40 °C, and Class 155 insulation supports elevated winding temperatures during cyclic loads. Construction follows size code 050 and length code B, while winding code 0450 is matched to midsize drives. Output torque is available immediately on startup because the unit ships without a holding brake, and its optical feedback technology avoids magnetic drift and helps preserve calibration over time.