Product Description:

The SF-B5.0250.020-14.000 is a brushless servo motor supplied by Bosch Rexroth Indramat within the SF Servo Motors series. As a rotary actuator, it converts controlled current from a drive controller into precise shaft motion for positioning tasks on packaging lines, transfer stations, and other automated equipment. Integrated feedback and an electromagnetic holding brake allow the motor to maintain position when power is removed, making it suitable for vertical or safety-related axes.

At a rated speed of 2000 rpm, the motor delivers continuous motion that aligns with common machine tool and handling profiles. The electromagnetic circuit responds linearly to current, giving a torque constant of 2.3 Nm/A, so the controller can predict torque output per ampere. During start-up, the stator can draw a locked-rotor current of 10 A to generate a stall torque of 23 Nm; this short-term capacity helps overcome static friction. Once running, the integrated brake requires only a holding current of 1.33 A and is energized from a 24 VDC supply, securing loads up to 56 Nm without external clamps. The 190 mm mounting interface matches IEC dimensions, which supports installation on compatible machine interfaces. Combined with the encoder, the rotating assembly has an inertia of 83 × 10⁻⁴ kg·m², letting the axis achieve rapid acceleration without overshoot.

The motor fits installations where space is limited. The output shaft has a Ø32 × 58 mm journal that mates with standard couplings, and the overall housing length is limited to 300 mm when the brake is omitted, easing integration in short drive trains. Static mass is controlled at 24 kg, limiting the load on linear guides, while the additional brake assembly adds only 3.8 kg. A brake inertia of 30 × 10⁻⁴ kg·m² keeps dynamic response near the bare-motor figure, so tuning parameters established with the brake disengaged remain valid once it is fitted.