Product Description:

The MSK100B-0300-NN-S2-BG2-RNNN is an IndraDyn S synchronous servo motor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It is intended for closed-loop position and velocity control in automated machinery where quick acceleration, repeatable motion, and compact installation are required. A size 100 stator with a B-length housing accepts the 0300 winding code, while the rear B-side power connector simplifies routing inside cabinets and gantry arms.

Thermal energy is removed through natural convection, so no external blower or fluid circuit is needed. This arrangement reduces maintenance points in tightly packed axes. The motor housing meets the IP65 protection rating, preventing dust ingress and guarding internal parts against water jets during washdown or coolant splash. Position feedback is delivered by an optical encoder that communicates over EnDat2.1, giving digital position data to the drive with high noise immunity. Within the measuring head, the scale provides 2048 signal periods per mechanical revolution, allowing fine interpolation for smooth servo regulation. The design also uses increased concentricity to minimize runout errors between the rotor and stator and improve controllability at low speeds.

For load-holding or vertical axes, an electrically released brake supplies 70 Nm of static torque once power is removed, eliminating the need for an external clamp. The unit can run continuously in ambient air from 0 to 40 °C without derating, which aligns with typical factory conditions. A plain shaft output eases coupling to gearboxes or pinions where keyways are unnecessary and reduces potential imbalance. Encoder evaluation is limited to a single-turn count, which suits applications that resume from a homing routine at each power-up while keeping internal memory requirements low.