Product Description:

The MSK050B-0300-NN-S1-UG1-NNNN is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It converts electrical input from a drive controller into precise rotary motion for position-controlled axes in handling, assembly, and inspection equipment where compact size and closed-loop accuracy are required. When paired with a compatible drive, the motor supports controlled acceleration, steady speed regulation, and accurate positioning during repetitive machine cycles. Its compact frame is suited to machine sections where available installation space is limited but repeatable motion is still necessary.

This model uses natural convection cooling, so heat dissipates through the housing without fans or external heat sinks. The aluminum housing has an IP65 protection rating that blocks dust ingress and resists low-pressure water jets. Position feedback is generated by an optical single-turn system that delivers 128 signal periods per mechanical revolution, and data transfer uses the Hiperface protocol for digital drives. A rotatable 240° connector helps route the encoder lead in tight spaces. The motor uses size 050, length class B, and winding code 0300, and it is listed in the standard design without special coatings or flange options.

An electrically released holding brake supplies 6 Nm of static torque, keeping the shaft locked during power-off states. Output torque is transmitted through a plain shaft, which is suitable for clamping couplings or pulleys that do not require keyway alignment. The class 155 insulation system permits continuous operation at elevated winding temperatures while remaining within the motor’s thermal limits. Reliable service is maintained across an ambient range of 0–40 °C, so the unit can be mounted inside standard control cabinets or directly on the machine frame. This combination supports stable operation in compact servo axes that need controlled motion and secure holding at standstill.