Product Description:

The MSK101D-0300-NN-S2-LG0-RNNN is an IndraDyn S synchronous servomotor manufactured by Bosch Rexroth Indramat and positioned within the MSK IndraDyn S Synchronous Motors series. Designed for closed-loop industrial automation, the unit converts drive commands from a servo inverter into accurate rotary motion for tooling, packaging, and handling axes. Its synchronous design supports precise speed regulation and repeatable positioning when paired with a compatible drive system. The increased concentricity mechanical design reduces rotor runout to minimize vibration at high speed.

In this model, natural convection cooling removes heat through surface radiation and airflow, so no external blower or liquid circuit is needed. Motor size 101 and length code D set the active stack dimensions, while winding code 0300 identifies the resistance and inductance pairings expected by the drive. The housing has an IP65 protection rating that seals the stator against dust ingress and low-pressure water jets. This helps the motor operate in production areas where airborne debris or light washdown may be present. Position feedback is generated by an optical encoder that transmits through the EnDat 2.1 serial interface, and its internal disk yields 2048 signal periods per revolution for fine interpolation inside the controller. Its thermal class is 155, allowing winding temperatures up to 155 °C without insulation failure.

The mechanical connection uses a plain shaft, so torque is transferred through friction-locked couplings without a keyway. A plain shaft is commonly paired with clamping hubs or other friction-fit couplings that help maintain accurate alignment. Encoder construction is single-turn, meaning the feedback reports absolute position within one revolution. The motor operates reliably between 0–40 °C ambient, which matches typical machine-room conditions. Power lines enter on the left side of the stator housing, which can simplify routing when the drive cabinet is mounted to the right of the machine. Because the unit is supplied without a holding brake, static load retention must be arranged by the machine's mechanics or by drive torque.