Product Description:

The SF-B5.0460.020-14.015 servo motor is produced by Bosch Rexroth Indramat within the SF Servo Motors series. Designed as a rotary actuator for automation lines, it converts drive current into controlled shaft motion for positioning tables, gantry axes, and packaging stations. A built-in electromagnetic brake allows the motor to hold load torque when power is removed, which helps prevent unintended movement during stops. The sealed housing also supports use in washdown areas and other applications that require strong protection against dust and moisture.

The unit reaches a rated speed of 2000 rpm, which matches converters that run standard 2 kHz control loops. Mechanical attachment is handled through a flange size of 190 mm, allowing direct coupling to gearheads or machine frames drilled to ISO patterns. With a torque constant of 2.2 Nm/A, the motor produces proportional torque for each ampere supplied by the inverter, and a holding torque of 56 Nm keeps payloads steady during dwell periods. During startup, the windings can sustain a locked-rotor current of 21 A for brief acceleration bursts. The enclosure has an IP67 rating for dust-tight sealing and temporary immersion resistance. The brake circuit uses a 2 × 1.5 mm² cable cross-section and has a rated current of 1.33 A.

Dynamic response is influenced by a rotor inertia of 166 × 10⁻⁴ kg·m², which provides a balance between rapid indexing and stable load coupling. The electromagnetic brake releases at 24 VDC and adds 30 × 10⁻⁴ kg·m² of inertia together with 3.8 kg of mass to the rear housing. Power conductors run through a cable sized at 4 × 4.0 mm² that terminates in a size-1.5 circular connector, matching standard Rexroth drive harnesses. When stalled, the shaft can deliver 46 Nm to overcome static friction, and radial O-rings at the connectors help maintain the IP67 seal.