SF-A4.0125.060-00.000

The Bosch Rexroth Indramat SF-A4.0125.060-00.000 from the SF Servo Motors series is a high-performance permanently excited brushless servo motor with a frame size 4 and design suffix A. It generates a locked rotor torque of 125 Nm at standstill and achieves a rated speed of 6000 min⁻¹ through electronic commutation. This synchronous motor features a sinusoidal e.m.f. and operates on a 670 V DC-link voltage for stable power delivery. The robust IM B5 construction type ensures flange mounting compatibility in compact drive systems.

Precision motion feedback is provided by the integrated STG/MTG single-turn absolute encoder, while ball bearings on the output side guarantee a minimum service life of 20 000 years under nominal load. The motor’s noise behavior of max. 58 dB(A) measured at 1 m (IAW EN 60034-T9) ensures low acoustic disturbance in sensitive environments. With a certified protection type IP67, the SF-A4 motor tolerates dust ingress and temporary immersion, and its shock resistance of 6 g (IAW DIN IEC 68-2-27) withstands dynamic shock loads. Plug-in connections for both output power and encoder signals facilitate fast installation, while insulation class F materials provide thermal endurance up to 155 °C.

Ventilation is achieved via natural convection, radiation, surface ventilation, or optional forced-air cooling for higher duty cycles. Integrated into the digital Servodyn-D inverter ecosystem, this servo motor accelerates commissioning and optimizes closed-loop performance. A one-year warranty underscores Bosch Rexroth Indramat’s commitment to reliable operation in industrial automation applications.