Product Description:

The SF-B4.0091.060-10.050 servo motor is produced by Bosch Rexroth Indramat within the SF Servo Motors series. It is a rotary actuator intended for closed-loop positioning and velocity control in automated machinery such as pick-and-place axes, packaging spindles, and indexing tables. By converting drive current into dynamic shaft rotation, the unit supplies precise motion for tasks that demand high repeatability and short cycle times. Its electromagnetic design pairs permanent-magnet excitation with feedback encoders, allowing tight speed regulation and rapid torque response inside multi-axis systems. The compact housing and standardized mounting flange simplify integration into mechanical frames that already follow IEC patterns.

The motor uses a flange size of 142 mm, so it can bolt directly onto gearboxes or machine plates without adapter rings. Under rated conditions, the shaft turns at 6000 rpm, supporting fast indexing or continuous high-speed operation where cycle time is critical. A torque constant of 0.65 Nm/A links drive current to mechanical output for proportional torque control. When the rotor is locked, the motor can deliver a stall torque of 9.1 Nm. Sustaining that torque requires a peak phase current of 14 A, which sets the short-term load on power electronics and cabling.

Dynamic behavior during acceleration is influenced by an inertia of 21 × 10⁻⁴ kg·m², offering a balance between rapid response and speed stability for medium-mass loads. The overall mass of 13 kg supports handling during installation while still providing sufficient thermal mass for heat dissipation. Power is transmitted through a shaft sized at Ø24 × 50 mm, allowing direct coupling to standard clamping hubs or keyed pulleys. With a body length of 246 mm, the motor fits inside compact enclosures where axial space is limited.