Product Description:

The MAC112B-0-LD-2-C/130-A-1 is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Built for analog drives, it converts ±10 V command signals into controlled shaft rotation for feed axes, indexing tables, and material-handling systems in industrial automation. The unit combines laminated stator cores, rare-earth permanent magnets, and an integrated tachogenerator to form a closed velocity loop directly at the amplifier, which helps reduce the processing demand on the control system. A factory-supplied blocking brake secures the shaft when power is removed, preventing load drift on vertical or suspended mechanisms.

Inside the stator, the LD winding code identifies the resistance and inductance values that let the paired analog amplifier deliver rated torque without excessive current ripple. Under nominal excitation, the rotor stabilizes at 2000 rpm, a speed suited to gearless coupling with ball-screw drives or conveyor pulleys. The integrated brake can apply up to 45 Nm, so the axis remains stationary during emergency stops or service work. Mounting accuracy is helped by a 130 mm centering diameter that aligns the flange with precision-machined housings. Heat is removed through natural convection, eliminating the need for external blowers in enclosed cabinets.

Tachometer feedback supplies 3 V/1000 rpm, giving the drive a linear velocity signal for proportional-integral speed control across the full range. Mechanical proportions follow frame size 112, while length code B increases magnetic stack depth for higher continuous output without changing the flange outline. Power conductors reach the stator through a connector on side A, which helps simplify cable routing when the motor is installed against machine panels. Standard tacho components keep ripple within acceptable limits so analog drives maintain smooth motion even at low shaft velocities.