Product Description:

The MSK071E-0300-FN-M2-UP2-RNNN is a synchronous servo motor produced by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. It is used on precision positioning stages, gantry axes, and automated assembly tooling, where closed-loop control must maintain accurate torque and velocity. When paired with compatible IndraDrive power modules, the motor converts commanded current into controlled rotary motion for cyclic indexing, contouring moves, and continuous-duty operation. Its role is to deliver smooth rotary output while the drive corrects for load changes and short dwell periods during repeated machine cycles.

For continuous duty, the motor uses liquid cooling, so circulating coolant removes heat from the housing and helps preserve rated output in compact installations. An IP65 protection rating seals the housing against dust and low-pressure water jets, allowing placement near demanding machine areas, and the approved ambient range is 0–40 °C. Insulation class 155 allows the windings to withstand elevated internal temperatures, and Bosch Rexroth also specifies increased concentricity to reduce cogging torque at the shaft. Motor size 071, length code E, and winding code 0300 set the electrical and mechanical behavior expected by the matching drive, while the cooling method avoids reliance on a fan mounted on the motor body.

Position feedback is provided through the EnDat2.1 interface, and the optical encoder supplies 2048 signal periods for precise commutation and position control. Its multi-turn absolute function retains revolution information without an external battery, which helps the control system recover axis position after a power cycle. The connection area is rotatable, 240°, which helps route cables when space around the motor is limited or when adjacent hardware restricts the preferred exit direction. An electrically released holding brake delivers 30 Nm of static torque to help keep a stopped axis from drifting after power is removed. The motor also uses a keyed shaft for positive torque transmission, and the coolant, encoder, and brake connections are grouped on the same side of the housing.