Product Description:

The SF-A4.0091.030-10.015 is a brushless servo motor produced by Bosch Rexroth Indramat and supplied within the SF Servo Motors series. As a compact rotary actuator, the unit converts controlled electrical input from a drive into precise shaft motion for indexing tables, packaging axes, and general-purpose CNC positioning. Integrated feedback and thermal sensing allow the motor to relay operating data to the drive, enabling closed-loop torque and speed regulation during dynamic motion. The housing follows standard IEC mounting patterns, which supports predictable face-mount installation in packaging, indexing, and CNC axis assemblies.

Electrical performance centers on a DC link that withstands 670 V, allowing the connected inverter to support full field weakening without voltage saturation. Under those conditions, the motor reaches a rated shaft velocity of 3000 min⁻¹. Torque buildup follows a constant of 1.42 Nm/A, so commanded current scales linearly with mechanical output and the drive can respond smoothly to changing load demand. At start-up, the drive may apply a locked-rotor current of 7.0 A, generating a stall torque of 10 Nm to overcome static loads. Mechanical integration is simplified by a square flange that measures 142 mm across, supporting bolt patterns common to mid-frame automation gearboxes and machine adapters.

Continuous duty is allowed up to 40 °C, and operation up to 1000 m above sea level helps keep winding temperature within limits monitored by two NTC sensors. Resistance to production floor impact is evidenced by a shock rating of 6 g, which helps the motor tolerate routine machine vibration and handling loads. A rotor inertia of 21 × 10⁻⁴ kg·m² supports rapid acceleration while maintaining speed stability during controlled motion. The pilot diameter of Ø130 j6 centers the frame accurately and helps minimize runout when the motor is coupled to precision reducers.