Product Description:

The SF-A0.0008.060-04.085 belongs to the SF Servo Motors series from Bosch Rexroth Indramat. As a permanent-magnet synchronous servo motor, it delivers precise torque and position control for automated handling, packaging, and assembly axes. Its compact IM B5 flange layout allows direct mounting to gear stages or machine frames, which is useful where installation space is limited. Electronic commutation works with the drive amplifier for closed-loop motion control, so the motor can follow commanded speed and position changes with stable response during repeated cycles.

A dedicated brake circuit rated at 24 VDC energizes the internal permanent-magnet fail-safe holding brake so vertical loads can remain secured when power is removed. Rotor position is reported by a single-turn absolute encoder, which provides a unique angle value for each revolution and lets the control system know the shaft position at startup. The windings are matched to a DC-link bus of 670 V, and the stator back EMF has a sinusoidal waveform for smooth torque production across the operating range. Heat is removed by natural convection, so no forced-air or liquid cooling connections are required. This cooling method keeps the motor layout simple, and the housing can withstand shocks up to 6 g during handling and transport.

The rotor is balanced for continuous service at 6000 rpm, giving the axis a high speed range for rapid positioning and short transfer times. Sealing to IP67 with a mating connector blocks dust ingress and helps protect the motor during washdown cycles on open machine frames. Bearing and lubrication design support a minimum operating life of 20,000 h before scheduled overhaul. That service interval suits conveyors, indexing stations, and pick-and-place systems that run for long periods between planned maintenance stops.