Product Description:

The MAC112B-1-GD-2HC/130-A-0 is a servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. It functions as the electromechanical actuator in analog drive systems, converting regulated current from the amplifier into controlled shaft rotation. In industrial automation, this motor can position tooling, transport material, or synchronize machine sections when a rapid and accurate rotary axis is required. Its design is suited to applications that depend on external analog control rather than integrated digital communication.

The motor relies on a blower that operates at AC 230 V to move cooling air across its housing, helping the stator remain within its rated temperature range during continuous duty. Heat removal is assisted by axial surface cooling, which channels airflow lengthwise along the frame. A centering diameter of 130 mm aligns the flange with mounting bores on gearboxes or machine plates to support concentric installation under load. Power conductors enter through a connector on side A, which can simplify cable routing in narrow enclosures. For speed control, a tacho generator delivers 1.5 V/1000 min⁻¹, and the analog drive uses this proportional signal to close its velocity loop. The assembly is supplied without a blocking brake, so external restraint is needed when holding torque must be maintained at standstill.

Frame size code 112 indicates the stator diameter and places the motor in its base torque class. Length code B adds active lamination length for greater continuous output without changing the mounting circle. The GD winding identifies the copper gauge and turns count used with compatible MAC analog amplifiers. Motion information is supplied through standard-accuracy tachofeedback, which provides a linear voltage slope that remains stable across the stated speed range. This feedback method supports applications that require dependable velocity regulation from a conventional analog servo drive.