Product Description:

The MSK050B-0450-NN-S1-UP0-NNNN is a synchronous servo motor produced by Bosch Rexroth Indramat as part of the MSK IndraDyn S Synchronous Motors series. The unit is intended for closed-loop motion tasks in industrial automation, where precise torque and speed regulation are required for axes on packaging lines, handling modules, and machine tools. It is suitable for positioning, indexing, and speed-controlled duties that require repeatable motion from a compact servo platform. This motor format is commonly used where the drive must maintain smooth acceleration, controlled deceleration, and accurate response to changing loads.

Thermal management relies on natural convection, so heat is released through the housing without forced airflow. This supports installation where auxiliary fans are undesirable and helps keep the motor package simple. The housing meets IP65, preventing dust ingress and low-pressure water jets from reaching internal components. Electrical layout follows winding code 0450, and the B-length frame pairs that winding with the 050 stator to balance torque and inertia. Feedback signals are transmitted over the Hiperface interface, and the optical single-turn encoder provides 128 signal periods per revolution. Its scanning principle is optical, which supports stable position feedback with low electrical noise, and the encoder connector can rotate 240 degrees for easier cable routing.

The mechanical interface uses a shaft with a keyway, ensuring positive torque transfer to pulleys or couplings without relying on friction alone. Because the motor is supplied without a holding brake, static load support during power-off must be provided externally when the application requires it. Allowed ambient operation is 0 to 40 °C, and the active parts use insulation class 155 to support the thermal limits of the winding system. Frame coding identifies the unit as motor size 050 with length B, which keeps the housing compact while matching the torque characteristics of the 0450 winding. This layout suits direct-coupled installations that need compact dimensions and dependable feedback performance.