Product Description:

Bosch Rexroth Indramat manufactures the SF-A4.0125.030-00.000, a member of the SF Servo Motors series. The unit is a permanent-magnet synchronous servo motor intended to drive precision axes in assembly machines, packaging lines, and similar equipment. By supplying tightly regulated torque and velocity, it supports motion sequences that must synchronize with sensors and higher-level controllers in automated production cells.

The motor housing carries an enclosure rating of IP67, which means the stator windings and bearings are sealed against dust ingress and temporary immersion, so it can be mounted directly on process machinery without an additional cabinet. Feedback is delivered by a high-resolution 20 bits encoder of the single-turn absolute type, allowing the controller to read rotor position within one mechanical revolution without a homing cycle. Mechanical attachment follows the IM B5 face-mount pattern, and the output end uses a keyed shaft for positive torque transfer. The motor is rated for 3000 rpm and provides a standstill torque of 14.5 Nm. Flange accuracy class N keeps axial runout within standard limits so couplings stay aligned during continuous duty.

Thermal management relies on radiation and convection rather than forced air, and two NTC sensors embedded in the stator windings report temperature to the drive. The electromagnetic design produces a sinusoidal back-EMF profile that minimizes torque ripple, while the rotor uses rare-earth magnets for high power density. During static load, the windings draw up to 10.4 Arms, which the drive must supply without exceeding its protection limits. The motor ships without a mating connector, so application wiring can be selected to suit the machine layout. Vibration severity grade N indicates standard balance limits during operation.