Product Description:

The SF-B4.0230.030-10.030 is manufactured by Bosch Rexroth Indramat and is part of the SF Servo Motors series. This model functions as a rotary actuator for closed-loop positioning and speed regulation in automated equipment such as packaging stations, indexing tables, and material-handling axes. By combining precise electronic commutation with mechanical dimensions standardized across the series, the motor integrates with Indramat drives and common gearbox interfaces while supporting the torque density needed for high-cycle industrial motion.

The unit uses forced-air cooling, so an external blower directs airflow over the frame to remove losses generated at its 23 Nm standstill torque rating. Producing this torque requires a standstill current of 21 Arms, which affects cabling gauge and drive amplifier sizing. A housing outside diameter of 165 mm sets the space envelope in the machine layout, while the rotor’s 24 mm shaft diameter mates with standard coupling hubs. Mechanical centering is aided by a 130 mm pilot with a j6 tolerance, and the shaft journals use a k5 fit to minimize runout without excessive press force. Connector size 1.5 provides the power and feedback interface, and embedded thermistors report temperature for real-time thermal monitoring.

Mounting conforms to the IM B5 flange pattern, allowing the motor to bolt directly to gearheads or machine plates without feet or additional brackets. Accurate radial alignment is maintained by the pilot fit, which helps keep concentricity stable during thermal cycling. Thermal protection is enhanced by 2 x NTC sensors that let the drive reduce current before critical winding temperatures are reached. A smooth shaft eliminates keyways, so torque is transferred through friction couplings and stress concentrations are reduced during assembly.