Product Description:

The MSK103B-0300-NN-S3-UG0-NNNN is an IndraDyn S synchronous servo motor produced by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. As a closed-loop drive element, it converts electrical power into precise torque and speed for positioning axes, pick-and-place modules, packaging machinery, and other automated equipment that depends on repeatable motion. Its design supports applications where fast response and consistent feedback are needed to maintain accurate movement during indexing, handling, and synchronized machine cycles. The motor has size 103 and length code B, which provide a predictable frame for machine mounting.

Electrical behavior follows winding code 0300, which identifies the stator resistance and inductance values used by the drive controller when calculating current limits. Cooling relies on Natural convection, so no external blower is required and acoustic noise is minimized. A protection rating of IP65 shields the housing against dust and water jets, helping the motor operate in industrial environments where moisture or debris may be present. Feedback is carried over the Hiperface interface, and the rotatable 240° encoder connector supports flexible cable routing in tight enclosures. The capacitive encoder uses single-turn operation with 16 signal periods to provide absolute position data to the drive without batteries.

The motor uses a Plain shaft configuration, which eliminates keyways and favors clamp couplings for backlash-free transmission. Safe operation is confined to ambient temperatures from 0–40 °C, matching many controlled factory environments. Thermal durability corresponds to insulation class 155, allowing winding temperatures up to 155 °C before degradation. This unit is supplied without a holding brake, so static loads must be secured by external means or by drive-produced torque when the axis is stopped. That arrangement is suitable for systems that already use a separate holding method.