Product Description:

The MSK071C-0300-NN-S1-UG1-NNNN is a synchronous servo motor engineered by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. As a self-contained drive element, it converts commanded currents into precise torque and speed for indexing tables, gantry axes, and other automated machinery. Its design combines a compact stator, an integrated position encoder, and a spring-applied safety brake to simplify mounting and system integration in industrial motion control systems. This combination supports accurate positioning, repeatable cycle timing, and controlled stopping in machines that operate through frequent start-and-stop sequences.

Cooling is achieved through natural convection, so the housing fins remove heat without auxiliary air or liquid circuits. Cable routing is more flexible because the feedback connector can swivel through 240°, which helps reduce cable strain in confined spaces. Absolute position is communicated via the Hiperface protocol, allowing the drive to synchronize immediately after power-up. The optical sensor generates 128 signal periods per mechanical turn, which supports fine electronic interpolation for smooth velocity control and stable low-speed motion. For vertical or load-holding axes, an electrically released brake supplies 23 Nm of holding torque when the motor is de-energized, keeping the application stationary until power returns.

The motor uses frame code 071, which gives it a mid-range housing diameter within the series. Its C-length stack provides additional active length for continuous torque production without requiring a larger frame diameter. A plain shaft interface simplifies coupling to clamp-style hubs and helps maintain accurate concentricity at the mechanical connection. Feedback scanning relies on optical technology with a single-turn encoder track, so position is reported precisely within one mechanical revolution. This encoder arrangement is well suited to axes that perform short indexing moves, repetitive placements, and other tasks that depend on accurate motion over limited angular travel.