Product Description:

The MAC071B-0-PS-4-C/095-B-1/WI517LX is a brushless AC servo motor from Bosch Rexroth Indramat's MAC AC Servo Motors series. It is intended for analog drives in equipment that depends on controlled rotary motion. The unit supplies closed-loop torque and velocity so that packaging stations, handling robots, and transfer lines can maintain programmed motion profiles under variable load. Its brushless design also helps reduce routine wear because it does not rely on mechanical commutation during normal operation.

It integrates a standard blocking brake that delivers 3 Nm of static holding torque, which helps a vertical axis remain in place when the amplifier is de-energized. A 95 mm centering diameter aligns the motor flange with gearboxes or mounting plates for accurate installation. Heat from the stator is dissipated by natural convection, so the motor does not require an external blower when surrounding airflow is unobstructed. This cooling method also supports cabinet-free mounting where open air circulation is available. During operation, the rotor can reach 4000 rpm, which suits moderate-to-high throughput on indexing tables. Electrical power is routed through a connector on side B, helping keep the cable bundle clear of adjacent axes in multi-motor assemblies.

For speed feedback, the motor carries a tacho generator that produces 1.5 V/1000 rpm. The electromagnetic section uses winding code PS, and the active stack is built to motor size 071 with length class B for this frame. Position information is provided by an incremental encoder installed with standard mounting hardware. The encoder tracks support digital position capture, while the tacho signal assists compatible drives with stable speed regulation. This feedback arrangement is well suited to legacy control systems that need both continuous velocity information and repeatable shaft position data.