Product Description:

The MSK071E-0300-NN-M1-BG1-NNAN is a synchronous servo motor produced by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. It is used in industrial automation to deliver closed-loop rotary motion when paired with Rexroth drive controllers. The motor belongs to size 071 with length code E, and its reduced runout design helps limit radial shaft deviation for accurate coupling. A B-side power connector simplifies routing in cabinets where the cable exit must face away from the drive axis. This layout suits machine axes that need compact cable management and consistent positioning during repeated motion cycles.

Heat is removed solely through natural convection, so the housing fins must remain unobstructed during installation. The integrated single-cable feedback system uses a Hiperface interface to transmit position data and electronic nameplate information to the drive. Its optical encoder generates 128 signal periods per mechanical revolution, which supports smooth velocity regulation at low and moderate speeds. Motion can be held securely because an electrically released brake provides 23 Nm of static torque, helping prevent drift when power is removed. The winding code 0300 is matched to the motor layout for repeated start and stop duty. The housing has an IP65 rating, so dust and low-pressure water jets are kept away from internal components.

Continuous operation is allowed in ambient temperatures from 0 to 40 °C, so additional cooling is not required unless the surrounding air exceeds that range. The encoder sensing path is based on optical technology and records rotor angle with a multi-turn absolute count, allowing the controller to recover position after shutdowns without a homing routine. Class 155 insulation supports the thermal load created by high peak current demand. Mechanical power is transmitted through a plain shaft that mates to couplings without keys, which helps avoid play in highly dynamic axes.