Product Description:

The MSK133B-0203-FN-S3-EB0-NPNN is a synchronous servo motor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It functions as a rotary actuator in industrial automation, translating controlled electrical power from a drive into precise shaft movement for tasks such as positioning tables, tooling spindles, and pick-and-place modules. In closed-loop applications, it supports accurate motion control during repeated starts, stops, and speed changes.

The motor uses B5 flange mounting, which allows direct coupling to gearboxes or machine frames. The housing meets IP65 protection, so it resists dust intrusion and water jets during washdown cycles. Heat generated by the stator windings is removed through an integrated liquid cooling circuit, allowing continuous torque output without increasing the motor footprint. Motion feedback is provided through a Hiperface interface, and the internal encoder supplies 16 signal periods per revolution to support fine commutation and incremental positioning. The terminal box can be rotated on the A-side to align cable exits with the installation, and the motor is delivered without a holding brake for applications that secure the load through external means.

The encoder uses capacitive sensing and is a single-turn device, so absolute position information is retained within one mechanical revolution. Motor geometry is based on size 133 and length B, giving the torque class expected from this frame while keeping the mass suitable for medium-duty gantry and press drives. Electrical characteristics correspond to winding code 0203, which matches IndraDrive controllers that supply the required current and voltage vector. Continuous operation is permitted within an ambient range of 0–40 °C, and insulation class 155 helps protect the stator coils from thermal aging under prolonged load.