Product Description:

The SF-A4.0125.030-10.000 is a servo motor produced by Bosch Rexroth Indramat in the SF Servo Motors series. It is intended for closed-loop speed and position control on packaging lines, pick-and-place axes, and other automated stations. It provides precise rotary motion when integrated with drive controllers.

This motor sustains a rated speed of 3000 min⁻¹, enabling repeatable cycle times without overspeeding the load. A torque constant of 1.37 Nm/A links amplifier current directly to output torque, simplifying loop tuning. During startup or an unexpected stall, it can withstand a locked-rotor torque of 14.5 Nm while drawing a locked-rotor current of 10.6 A, allowing the drive to clear static friction before motion begins. Position feedback comes from an optical encoder that delivers 8 million incr./rev., supporting sub-arcminute positioning when paired with a high-resolution controller. The IM B5 construction type signifies a flange-mounted housing with no feet, and the overall length is limited to 277 mm for space-constrained panels. A Ø24 × 50 mm shaft mates with standard couplings, and airborne acoustic output is held to 58 dB(A) to keep operator areas within typical plant noise guidelines.

Environmental and mechanical factors complement the electrical performance above. A sealing system rated at IP67 guards the stator windings against coolant splash and fine dust. The circular mounting interface uses a flange diameter of 142 mm, so the motor can bolt directly to gearheads or cast frames without adapter plates. Dynamic response is helped by a rotor inertia of 30 × 10⁻⁴ kg·m², balancing acceleration capability with load stability, while the assembly mass of 16 kg provides vibration damping once installed. Long-term uptime is supported by a bearing service life of 20,000 hours, and the internal layout keeps components within that operating range even under continuous duty.