Product Description:

The MAC112B-0-GD-2-C/130-A-0/S05 is an AC servo motor manufactured by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. It is specified as a motor for analog drives, meaning the drive electronics supply continuous current and velocity reference signals rather than discrete step commands. In automated production cells, this unit delivers closed-loop rotary motion to indexing tables, gantry axes, or material-handling actuators where precise speed regulation is required.

Heat produced by the stator windings is removed through natural convection, eliminating the need for forced air or liquid circuits and simplifying enclosure design. A centering flange diameter of 130 mm establishes the mechanical datum for coupling the housing to a gearhead or mounting plate with repeatable concentricity. The motor has frame designation 112, which corresponds to the stator lamination height, while length code B indicates the stack depth that affects continuous power. Power and protective-earth conductors exit through a connector on side A, orienting the cable run parallel to the motor shaft for compact routing inside a cabinet or machine arm. Winding code GD identifies the copper turns and insulation scheme chosen to match the inductance and resistance required by legacy analog drives that operate this model.

Rotor position and velocity are returned to the drive via integrated tacho feedback, supplying a proportional voltage that forms the basis of the velocity loop. The feedback device is built to standard tacho quality, giving repeatable output without the tighter tolerances associated with precision options. The motor is supplied without a blocking brake, so when power is removed, shaft holding torque must be provided by an external mechanical lock or by maintaining current in the drive. This motor is suited for legacy analog control architectures that still require dependable servo performance.