Product Description:

The SF-A5.0460.020-10.019 is a servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. As a rotary actuator for industrial automation, it converts controlled electrical input into precise shaft motion so that drives and positioning modules can maintain accurate speed and torque under closed-loop control. It is intended for systems that require repeatable positioning, steady speed regulation, and stable torque output during changing load conditions. An absolute encoder mounted at the rear supplies single-turn position data, so the controller can read the shaft angle immediately after startup without a homing cycle.

A flange diameter of 190 mm and the IM B5 construction type let the housing bolt directly to gearboxes or machine frames without additional adapters. The motor can accept an allowable axial load of 380 N, which supports thrust from couplings or belt tension during operation. Power leaves the housing through an 8-pin motor connector that accepts a 4 x 4.0 mm² cable. The brake leads use separate 2 x 1.5 mm² conductors, and the auxiliary feedback plug uses connector size 1.25. This arrangement keeps the main motor connection, brake wiring, and feedback connection clearly separated.

The intermediate circuit allows up to 670 VDC, matching high-voltage drive platforms that reduce current at a given power level. During a locked-rotor test, the stator draws 21 A and develops 46 Nm, which describes the motor's behavior during stall and startup conditions. Continuous application cycles run near the rated speed of 2000 rpm, where the windings produce torque in proportion to current with a constant of 2.2 Nm/A. The total inertia, including the encoder, is 166 x 10⁻⁴ kg·m², which helps the drive respond quickly during acceleration and positioning. When a holding brake is present, its coil can use the separate brake cable so braking torque is applied when power is removed.