Product Description:

Bosch Rexroth Indramat's MAC112B-0-GD-2-F/130-B-1 is a brushless AC servo motor in the MAC AC Servo Motors series. It converts electrical power from a current-controlled amplifier into tightly regulated rotary motion with rapid torque response. In automated transfer lines, printing presses, and machine tools, it positions loads, follows velocity profiles, and holds static torque on demand. This operating profile suits axes that need repeatable motion and stable low-speed control during frequent starts and stops.

The motor leaves the factory with a blocking brake as standard equipment, and the brake can hold up to 45 Nm of load when power is off. This allows secure parking on vertical axes during power loss or planned shutdowns. A mounting pilot of 130 mm centers the housing for coaxial alignment with couplings or gearboxes. Heat from copper losses is removed by natural convection, so no additional blower or coolant manifold is required. Rotor speed is monitored by embedded tacho feedback, which provides an analog voltage proportional to rpm for closed-loop control. The motor has length code B, which gives a moderate body length and helps keep installation depth manageable.

The frame uses size 112, which corresponds to the stator diameter and mounting bolt pattern used across the series. Power and protective earth conductors enter through a connector on side B, routing cabling away from the driven shaft and improving access at the connection point. That layout also helps keep cable bends away from the coupling area. Its internal tachogenerator is built for increased smooth-running quality, which helps reduce speed ripple at low rpm in printing or winding applications. The motor works with current-controlled analog servo controllers rather than pulse-width switching drives. The GD winding code corresponds to voltage and current ratings compatible with 300 V class supplies.