Product Description:

The SF-A4.0172.030-14.151 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SF Servo Motors series. This motor converts electrical energy from the drive into controlled mechanical rotation that positions tooling, conveyors, or pick-and-place axes in automated machinery. It is built in the IM B5 construction form, so the flange carries the mounting load while the shaft remains available for couplings or gearboxes. This arrangement makes the unit suitable for direct integration into compact machine frames where secure face mounting and accurate shaft alignment are required.

The motor reaches a rated speed of 3000 rpm, allowing stable velocity control in midrange motion tasks. A torque constant of 1.38 Nm/A links phase current to produced torque, enabling drive sizing based on the required load dynamics. The motor can sustain an axial load of up to 154 N without bearing damage, which is relevant when the shaft supports helical gears or belt tension. The integrated holding brake operates at 24 VDC and draws 0.7 A, simplifying wiring through standard control relays. When released, the brake contributes 3.1 × 10⁻⁴ kg·m² to system inertia, which must be added to the reflected load inertia for accurate loop tuning. During dynamic deceleration, the drive can engage a 1.0 Ω plug-in braking resistor to dissipate regenerated energy and keep the 670 V DC-link bus within safe limits.

A static holding torque of 18 Nm prevents movement when power is removed. The locked-rotor current of 13 A indicates the peak phase demand that the drive must tolerate during startup or a stalled condition. The motor withstands shocks of up to 6 g, allowing it to endure sudden impacts that may occur on packaging or assembly lines. Acoustic output is limited to 58 dB(A), helping machinery meet workplace noise targets. The locked-rotor torque corresponds with the brake’s holding capability, providing consistent shaft restraint through either the electromagnetic field or the brake.