Product Description:

The SF-A5.0250.020-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat for the SF Servo Motors series. Designed for closed-loop drive systems, the unit delivers precise angular motion to indexing tables, pick-and-place axes, and other equipment that requires repeatable speed and torque regulation. Electrical energy supplied by the drive is translated into mechanical rotation through permanent-magnet excitation, allowing the motor to execute rapid starts, stops, and direction reversals without mechanical backlash.

Its mounting face follows a flange size of 190 mm, allowing direct attachment to standard gearboxes or machine frames without adapter plates. Under stall conditions, the rotor can generate a locked-rotor torque of 23 Nm while drawing a locked-rotor current of 10 A; these values indicate the peak load that the winding and power electronics must tolerate at start-up or during unexpected jams. During continuous operation, the shaft can stabilize at a rated speed of 2000 min⁻¹, a figure that balances heat dissipation with application throughput. Torque production scales linearly with armature current, quantified by a torque constant of 2.3 Nm/A, so motion controllers can predict output torque by measuring phase current and compensate for variable loads in real time.

The mechanical envelope is compact, with an overall motor length of 300 mm and a mass of 24 kg, which simplifies integration on moving carriages while keeping inertia within drive limits. A stepped shaft measuring Ø32 × 58 mm provides the coupling surface for keys or shrink disks and ensures adequate torsional strength for the locked-rotor torque stated earlier. The rotor’s moment of inertia is 83 × 10⁻⁴ kg·m²; this modest value supports fast acceleration profiles while still offering sufficient damping against speed disturbances.