Product Description:

The MAC112B-0-GD-4-C/130-B-0 is an AC servo motor produced by Bosch Rexroth Indramat and included in the MAC AC Servo Motors series. As a motor for analog drives, it translates current commands from a legacy velocity or position controller into mechanical rotation that can be coupled directly to industrial gearboxes, conveyors, or pick-and-place actuators. The design targets applications that need repeatable motion, moderate inertia, and straightforward point-to-point positioning without embedded digital communication.

Mechanically, the rotor seats against a centering shoulder of 130 mm, a diameter that aligns the stator housing with machine frames and limits radial runout during acceleration. Frame size 112 identifies the outer lamination width, while length code B extends the active stack so more copper and iron are available for continuous torque. The winding code GD sets the phase resistance, inductance, and voltage constant expected by analog amplifiers. Thermal energy is removed by natural convection, so installation must leave sufficient clearance for upward airflow instead of relying on forced fans or liquid jackets.

Electrical integration is simple because the power leads terminate at a coded connector on side B, allowing parallel cable routing when several motors share a common mounting plate. Feedback is provided through tachofeedback, an incremental encoder, or an absolute encoder, giving the drive velocity and position reference options from the same hardware platform. Regulation accuracy is adequate for general automation tasks because the standard tacho quality rating helps limit jitter in the speed loop. The motor ships with no blocking brake, so separate clamping devices or motor-holding torque from a drive must maintain axis position when power is removed.