Product Description:

The MSK040C-0450-NN-M3-UG1-NNNN is a synchronous servomotor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. As a compact rotary actuator, this motor supplies closed-loop torque and speed control to automated machinery such as pick-and-place axes, packaging stations, and material-handling gantries. By integrating a multi-turn absolute encoder and an electrically released holding brake, the unit can maintain position during idle phases and resume movement without homing. This supports repeatable motion on axes that must stop and restart frequently during normal machine cycles. Its compact format also suits machines where installation space is limited but responsive servo performance is still required.

Heat generated during service is removed through natural convection, so the motor can be mounted in compact machine spaces without auxiliary fans when losses remain within the continuous rating. The IP65 housing helps block dust ingress and water jets in typical industrial environments. For feedback, the encoder connector uses a 240° rotatable connector, which simplifies cable routing in multidirectional layouts, while the digital bus uses Hiperface protocol for simultaneous position and parameter transmission. An electrically released brake provides 4 Nm holding brake torque, which helps prevent vertical loads from drifting when power is removed. This arrangement is useful on axes that pause between moves and need to hold their position at standstill.

Position data are produced by a capacitive multi-turn sensor that yields 16 signal periods per revolution, allowing the drive to interpolate fine angle increments required for precision indexing. The motor uses insulation class 155, which supports winding temperatures up to 155 °C during normal operation. It operates within a 0–40 °C ambient range, matching typical control-cabinet climates. A plain shaft eases coupling to backlash-free clamp hubs, and this shaft style is well suited to friction-locked connections that support accurate motion transfer. The size 040, length C frame with winding code 0450 offers a balanced ratio of torque to inertia for medium-duty servo axes.