Product Description:

The SF-B5.0250.030-14.000 is a permanent-magnet servo motor produced by Bosch Rexroth Indramat as part of the SF Servo Motors series. It is intended for closed-loop positioning and velocity control in automated machinery, where precise electromechanical output is required to move loads along programmed trajectories and hold them accurately at target positions. Its permanent-magnet design supports responsive torque production for axes that must start, stop, and reverse direction with repeatable accuracy.

The motor’s electrically released holding brake is energized with 24 VDC and draws a steady 1.33 A, so the cabinet must provide that auxiliary supply to keep the shaft free during operation. A flange outer dimension of 190 mm matches the IM B5 construction style, allowing face mounting to gearboxes or machine frames without additional adapters. The IM B5 arrangement also permits access to the feedback and power connectors because the shaft points outward from a fixed flange. Under commanded motion, the rotor can reach a rated speed of 3000 rpm, which suits applications that need fast axis travel. Its torque constant of 1.44 Nm/A links drive current to produced torque, which helps with current-based control and thermal calculations.

Static and startup performance parameters complement those dynamic figures. A holding torque of 56 Nm lets the brake retain vertical or unbalanced loads whenever control power is removed. During initial energization, the windings can accept up to 16 Arms of locked-rotor current, producing a breakaway torque of 23 Nm to overcome static friction before rotation begins. The keyed shaft measures 32 × 58 mm, providing a contact surface large enough to transmit the motor’s torque without slippage while fitting standard couplings used on packaging, woodworking, and material-handling equipment.