Product Description:

The MAC112A-0-VD-3-C/130-A-0 is a brushless servo unit produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. As a motor for analog drives, it converts armature current commands into controlled shaft torque and speed, allowing machine tools, packaging axes, and material-handling stations to position loads with repeatable precision. The motor is supplied without an integrated blocking brake, so any static holding force must be provided by external mechanical means or by drive torque. This arrangement suits axes that rely on controlled stopping rather than mechanical holding at standstill.

A centering diameter of 130 mm forms the pilot that aligns the housing on mounting flanges, helping keep runout low during operation. Heat produced by copper losses is removed solely by natural convection, eliminating the need for auxiliary fans or liquid circuits and simplifying enclosure layout. The rated mechanical speed reaches 2000 rpm, so the motor can follow moderate velocity commands while remaining within the operating range of the winding. Power is routed through a connector on side A, permitting cable entry parallel to the shaft for short lead routing. The integrated tacho generator outputs 3 V/1000 rpm, giving the analog drive a proportional feedback signal for closed-loop speed control.

The feedback arrangement combines tacho feedback with a second shaft end, so an auxiliary encoder or brake wheel can be added without disturbing the factory-mounted tacho. Winding code VD matches this motor to MAC drives with compatible current limits and supports stable thermal behavior during continuous duty. Frame 112 provides a stator cross-section suited to the magnetic loading of this winding. The compact length designation A helps keep total mass and inertia low, and it also reduces axial installation space on mid-range servo axes.