Product Description:

The MAC112B-0-GD-3-F/130-A-0/S0054 is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed as a motor for analog drives, it converts control signals from legacy drive amplifiers into accurate mechanical motion, allowing automated equipment to position loads or regulate speed without relying on additional gearing stages. In factory environments, the unit is typically coupled to ball screws, belt transmissions, or direct-drive shafts where dependable closed-loop velocity control is needed.

This model is supplied without a blocking brake, so holding torque must be provided by the drive or an external clamp when power is removed. Its centering pilot measures 130 mm, establishing the primary alignment reference for flange mounting against gearboxes or machine frames. Heat is removed through natural convection, which simplifies installation by eliminating fans or liquid circuits but requires free airflow around the housing. The feedback package combines tacho feedback and a second shaft end; the tacho supplies an analog speed signal to classic controllers, while the duplicate shaft end permits an extra encoder or mechanical load sensor. Rotor and stator characteristics follow the GD winding code, which sets resistance and inductance values that match medium-voltage analog drive modules.

The motor has a motor length B, which gives a stack height that balances continuous torque with manageable mass. It also has a motor size 112, which fixes the shaft diameter and bolt circle common to other 112-frame motors in the series. Power cabling enters through a connector on side A, allowing the lead set to stay clear of adjacent axes when the motor is mounted with the flange toward the machine wall. The rotor-mounted tacho is graded for increased smooth run quality, which helps minimize velocity fluctuation at low speeds and supports uniform surface finish in printing, winding, or tooling applications.