Product Description:

The Bosch Rexroth Indramat MSK071C-0300-NN-S1-UG0-NNNN is an AC synchronous servo motor in the MSK IndraDyn S Synchronous Motors series. Designed for axes that require precise torque and speed control, it converts regulated current from an IndraDrive inverter into rotary motion for pick-and-place stations, packaging lines, and general automation equipment. The unit carries an encoder that supplies position data to the drive, allowing closed-loop regulation of acceleration, velocity, and final position. This operating principle supports repeatable motion on automated axes where the controller must respond quickly to changing load demands during indexing and positioning cycles.

Thermal management relies on natural convection, so heat dissipates through the housing without forced airflow and the installation must allow free air circulation. Position data is transmitted through the Hiperface interface, enabling digital communication between the encoder and drive, and the connector can be rotated 240° to ease cable routing in confined spaces. The sensor produces 128 signal periods, which the drive interpolates for fine rotor-angle resolution. Because the sensing principle is optical, it provides stable accuracy over time and resists magnetic interference. The feedback device is a single-turn model, so it reports rotor angle within one mechanical revolution and requires homing if multi-turn absolute information is needed after power loss. The digital feedback channel also supports accurate commutation and steady speed evaluation during normal operation.

A plain shaft permits direct coupling with clamping hubs or gearboxes that do not require a keyway. This shaft format is commonly used with clamp couplings that support accurate alignment and concentric mounting. The motor is supplied without a holding brake, so braking torque must come from the inverter or external stops during shutdown. Its electrical behavior corresponds to winding code 0300, which matches the motor to a voltage constant and rated current combination for medium-speed, medium-torque tasks. The housing uses motor size 071, and the C length places the stator stack between shorter B and longer D variants to provide moderate power density without increasing installation depth.