Product Description:

The MSK071C-0300-NN-M1-UG1-NNNN is an IndraDyn S synchronous servomotor built by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. The model is engineered for closed-loop motion axes where accurate speed and torque control are required in packaging, handling, and machine-tool equipment. Its plain output shaft couples directly to gearboxes or load elements, and the integrated multi-turn optical encoder sends absolute position data to the drive so the axis can recover position after power loss without a homing cycle.

The physical frame corresponds to motor size 071, giving a compact flange and stator diameter that fit medium-power axes. Winding code 0300 indicates the electrical characteristics used by the matching drive, helping it supply the required current without saturation. Heat is dissipated through natural convection, which eliminates the need for an external blower and simplifies cabinet layout. The servomotor is sealed to IP65, helping protect internal components from dust and low-pressure water jets. For load holding during power-off, an electrically released brake provides 23 Nm of static torque, allowing vertical axes to remain in position when mains power or drive enable is removed.

The optical encoder communicates over the Hiperface interface, and its feedback resolution is set at 128 signal periods for accurate interpolation by the drive controller. A rotatable 240° encoder connector eases cable routing in tight assemblies, while the multi-turn counting system maintains absolute position across 4096 revolutions without external batteries. The unit operates in ambient temperatures from 0 to 40 °C, which suits typical industrial conditions. Its windings use insulation class 155, providing thermal margin for continuous duty when only passive cooling is available.