Product Description:

The MSK075E-0051-FN-S2-UG0-RNNN is an IndraDyn S synchronous servomotor built by Bosch Rexroth Indramat and placed in the MSK IndraDyn S Synchronous Motors series. The unit serves as a torque-dense drive element for industrial automation axes that need precise electrical positioning and steady speed control. A size 075 stator and the E-length housing give the motor a compact profile while leaving room for the channels used by its internal cooling circuit. The motor has increased concentricity to reduce runout during rotation. The output interface suits precision gearheads or belt pulleys that use friction-based hubs. Because the motor is supplied without a holding brake, external measures must secure vertical loads when power is removed.

The motor relies on a liquid cooling jacket that removes heat at the stator surface, allowing high continuous torque without raising enclosure temperature too quickly. Its housing carries a protection rating of IP65, so dust ingress and water jets do not impair operation when the frame is properly sealed. Safe continuous service is limited to ambient temperatures from 0–40 °C. A plain shaft helps avoid key-seat stress concentrations and is suited to low-vibration drives that use friction clamping or shrink-fit hubs.

The feedback section uses a rotatable connector that can be oriented over an arc of 240°, easing cable routing in tight cabinets and crowded machine layouts. Position data is transmitted through the EnDat2.1 digital interface, and the optical encoder provides 2048 signal periods per mechanical revolution for fine interpolation by the drive controller. Its optical scanning method supports high repeatability, and the single-turn design avoids multi-turn gearing at the encoder end. The motor uses insulation class 155, which supports elevated stator temperatures during high-load duty cycles.