Product Description:

The MAC112B-0-LD-2-C/130-A-0/S005 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Intended for analog drive systems, it converts current commands into controlled shaft rotation for positioning or tension-regulated applications in automated lines. Its integrated tachometer, standardized flange, and passive cooling let the motor mount directly on machine frames or inside electrical cabinets without auxiliary ventilation. This arrangement suits equipment that needs steady speed regulation with a compact motor package.

The mechanical interface starts with a centering diameter of 130 mm, which helps the flange mate accurately with gearboxes and minimize radial runout. Internal heat is removed through natural convection, so adequate air clearance is required around the housing fins. The electromagnetic circuit is rated for a nominal speed of 2000 min⁻¹, giving a balance between fast step response and continuous torque output. Phase geometry follows the LD winding code, which sets the resistance and inductance values used for predictable amplifier tuning. The unit is supplied without a blocking brake, so static load retention must come from an external brake or mechanical lock when the axis is vertical. Integrated tacho feedback supplies an analog velocity signal that closes the speed loop for legacy Rexroth drive controllers.

The tacho generator outputs 3 V/1000 min⁻¹, giving drive electronics a linear voltage reference for precise current modulation during acceleration and deceleration. The type code indicates a motor length B, which sets the active lamination stack and corresponding thermal capacity. It also indicates a motor size 112, which fixes the stator outside diameter and bolt circle. Power leads exit through a connector on side A, allowing neat routing toward drives mounted to the left of the motor while maintaining the specified natural airflow path. This cable direction can also help keep the connection point accessible in compact machine layouts.