Product Description:

The MAC112B-0-GD-4-C/130-B-0/WI511LV is an AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. As a motor for analog drives, it converts drive commands into precise rotary motion for positioning tables, gantries, and machine-tool axes in automated equipment. The unit couples directly to load mechanisms through its keyed shaft, delivering closed-loop motion when paired with compatible controllers and feedback devices. Because it is supplied with internal permanent-magnet excitation, no external magnetizing current is required.

Mechanical mounting is simplified by a 130 mm centering diameter that aligns the flange concentric to gearboxes or frames without additional adapters. Heat generated in the stator is dissipated through the housing by natural convection cooling, so no blower or liquid circuit is required where ambient airflow is available. Incoming three-phase power enters through a connector on side B, keeping the cable bundle on the non-drive end and allowing tight installation against machinery faces. Electromagnetic characteristics are set by the GD winding code, which gives the resistance and inductance values needed for drives that supply the rated current and voltage. Torque capability is also related to the frame cross-section indicated by motor size 112.

The motor has no blocking brake, so holding torque must be provided by external mechanics or continuous motor excitation during power-off periods. Axial stack length is coded as motor length B, giving a mid-range inertia value that balances acceleration with load stability. Speed feedback uses standard tacho quality, and the motor also supports tacho feedback with an incremental or absolute encoder through the same rear connector for applications that need higher feedback resolution. Analog drive systems can use these feedback signals to regulate speed and position without an auxiliary cooling system.