Product Description:

The SF-A4.0230.030-14.053 is a synchronous servo motor produced by Bosch Rexroth Indramat as part of the SF Servo Motors series. In automated assemblies, it acts as a rotary actuator that converts drive current from a compatible inverter into controlled torque and speed for positioning axes, gantries, or feed drives. Its integrated feedback transducer and mechanical interface are intended for motion sequences that require repeatable accuracy within tight process tolerances. This arrangement supports controlled starts, stops, and speed changes in equipment that depends on stable servo response.

At its rated operating point, the rotor turns at 3000 rpm, and a torque constant of 1.57 Nm/A helps relate commanded phase current to produced torque. When the shaft is locked, the motor can deliver a stall torque of 22 Nm while drawing a locked-rotor current of 14 A, which is useful when sizing the supply and protective devices. The magnetic encoder provides 8,000,000 increments per revolution and maintains positional error within ±20 arcsec, supporting fine interpolation in closed-loop control. The power interface is referenced to a 670 V DC link, and the spring-applied holding brake is energized from 24 VDC ±10% with only 0.7 A of coil current.

A rotor inertia of 54 × 10⁻⁴ kg·m² balances dynamic response with load stability during repeated motion cycles. The integrated brake can secure loads with a holding torque of 18 Nm at 120 °C, and the bearing set tolerates an axial thrust of 154 N for belt- or screw-driven assemblies. For demanding production areas, the housing withstands shocks up to 6 g and keeps acoustic emissions below 58 dB(A) during continuous duty. These operating characteristics make the motor suitable for packaging, printing, and material-handling equipment where accurate positioning and steady operation are required.