Product Description:

The MAC112B-0-GD-1-B/130-A-0 is an AC servo motor manufactured by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Intended for integration with analog velocity and position controllers, the motor converts command voltages into precisely regulated rotary motion for machine tools, packaging equipment, and automated material transfer axes. Its 112-frame housing accommodates a permanent-magnet rotor that supports fast load changes while remaining within the thermal envelope provided by passive cooling during normal operation in repetitive industrial duty cycles.

The flange has a centering diameter of 130 mm, a dimension used to align the motor accurately against gearboxes or mounting plates. Heat is removed solely through natural convection, so no external blower or liquid circuit is needed. Position and speed are returned to the drive by incremental encoder feedback, allowing analog control loops to close at the drive without extra sensors. The motor uses motor size 112, which indicates the stator outside diameter and supports the corresponding torque capability and bolt-circle pattern. The electrical behavior is set by winding code GD, which establishes phase resistance, inductance, and nominal current for the paired drive.

The motor has motor length code B, which gives a reference for total stack height when installation space is constrained. Power conductors exit through a connector on side A, directing the cable run toward the machine interior and supporting strain-relieved routing. Classified as a motor for analog drives, it matches interfaces that output ±10 V speed or current commands instead of digital fieldbus traffic. The rotor shaft can coast freely because the unit is supplied without a blocking brake, so applications that need hold-in-place capability must rely on external clamping or the drive’s torque-holding function during planned stops or power loss.