Product Description:

The MAC112B-0-LD-3-C-130-A-0-S005 is an AC servo motor manufactured by Bosch Rexroth Indramat in the MAC AC Servo Motors series. It is intended for analog drives and converts drive controller commands into precise rotary motion for industrial positioning and contouring tasks. The combination of a laminated stator core, an integral tachogenerator, and a second shaft end lets the motor supply continuous speed feedback to legacy analog velocity loops used on machine tools and handling axes. This arrangement supports stable closed-loop operation where the amplifier depends on analog velocity signals rather than digital encoder data. This makes the motor suitable for installations where simple analog servo electronics remain in service.

The mechanical interface is centered by a 130 mm pilot, and the housing dimensions correspond to size code 112, which matches common mounting dimensions within this frame class. Rated speed is 2000 rpm, a value commonly used to balance torque, usable speed range, and gearbox selection in axis applications. Heat produced by copper losses is removed through natural convection, so additional blowers or liquid circuits are unnecessary when free airflow is available around the housing. The winding code LD identifies the electrical winding arrangement used for this motor. That winding selection sets the resistance and inductance values expected by compatible analog drive units. Natural cooling also reduces maintenance because the motor does not require a separate fan assembly or coolant connections.

Tachometer calibration is 3 V/1000 rpm, which provides an analog velocity signal proportional to rotor speed for amplifiers that require low-level speed feedback. Power cables exit through a connector on side A, which can simplify routing when the motor is mounted near a machine wall or enclosure panel. The motor has no blocking brake, so holding torque during power-off must be provided by external mechanics or drive torque. The unit uses tachofeedback and a second shaft end, allowing an additional encoder or mechanical element to be coupled without affecting the tachometer output. The second shaft end can also support auxiliary motion components when the application requires a direct mechanical takeoff.