Product Description:

The MSK101E-0300-FN-S2-LG2-RNNN is a synchronous servomotor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It drives precision axes in automation cells, packaging lines, and handling stations where closed-loop velocity and position control are required. The motor is supplied as a complete unit that includes an electrically released holding brake and an optical feedback system, so it can be integrated directly with compatible Rexroth drive controllers in high-performance motion platforms. This combination supports accurate starts, stops, and repeatable positioning during continuous machine cycles.

The stator jacket is equipped with liquid cooling, which requires the motor to be connected to a dedicated coolant circuit for heat removal during continuous operation. Position feedback is generated by an EnDat2.1 optical encoder that provides 2048 signal periods per revolution, allowing fine interpolation inside the drive for tight speed control. That encoder is built as a single-turn device, so it reports absolute position within one mechanical turn without the added data handling of a multi-turn design. For power wiring, the connector is located on the left side of the housing, which helps maintain a fixed cable path in compact machine layouts. An electrically released brake rated for 70 Nm secures vertical loads when power is off and helps hold the axis in place during controlled shutdown conditions.

The mechanical package uses increased concentricity, which reduces runout at the output flange and supports accurate coupling alignment. The internal winding code 0300 is matched to the motor’s electrical design, while frame size 101 provides the housing cross-section used for this configuration. A plain shaft supports the use of clamping hubs or shrink-fit connections where low backlash is required. Housing length E gives the motor a longer active section than shorter versions in the same frame, which helps it maintain continuous torque capability without changing the basic mounting footprint. With the coolant circuit active, the motor can dissipate heat more effectively during sustained cyclic duty.