Product Description:

The MSK133E-0203-FN-S3-EG0-NPNN is a synchronous servo motor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. As a closed-loop drive element, it supplies controllable torque and speed to industrial machinery. This capability supports conveyor, press, and gantry axes where precise motion helps maintain cycle times and product quality during automated production.

This model uses liquid cooling; coolant circulated through the stator jacket extracts heat so the motor can deliver rated torque in enclosed machine spaces. A standardized flange assembly (B5) simplifies coupling to gearboxes or machine frames. The rotatable terminal box on the A-side allows power and feedback leads to be oriented according to the cabinet layout, which reduces unnecessary cable bends and supports orderly routing around adjacent equipment. Rotor position data travels over the Hiperface serial interface, allowing high-resolution feedback with only two data conductors. The enclosure carries an IP65 rating, which prevents dust ingress and protects internal components against low-pressure water jets. Continuous operation is permitted from 0 to 40 °C without output derating, making the motor suitable for typical industrial operating temperatures within that range.

The motor has a plain shaft that accepts friction couplings or shrink discs without requiring a keyway. Its encoder is configured for single-turn measurement and reports absolute position within one mechanical revolution. The encoder generates exactly 16 signal periods per revolution, supporting accurate electronic commutation without multi-revolution tracking. The windings use insulation class 155, which permits winding temperatures up to 155 °C during demanding duty cycles. The motor has a 133 mm frame size, an E-length magnetic stack, and winding code 0203, providing a configuration suited to high-inertia axes. It is supplied without a holding brake, so stationary load retention must come from an external mechanical brake, drive-applied torque, or gravity-compensating equipment.