Product Description:

The MAC112B-0-GD-1-L/130-A-0/J625/S05 is an AC servo motor manufactured by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. This electromechanical actuator converts controlled three-phase power from a drive amplifier into precise rotary motion for indexing, conveying, or coordinated multi-axis tasks within automated machinery. By pairing permanent-magnet excitation with responsive feedback, the unit delivers repeatable velocity and rapid torque rise. It is commonly used on machine axes that need smooth speed control, stable positioning, and repeatable motion over frequent start-stop cycles. Its frame dimensions follow standardized IEC patterns, allowing straightforward mechanical integration without extensive redesign of the mounting interface.

The motor’s centering pilot measures 130 mm, providing a reference surface that keeps the stator concentrically aligned with gearboxes or machine plates and limits runout at high speed. Heat is removed by natural convection, so airflow around the housing must remain unobstructed and no external blower is required. Because cooling depends on the outer housing surface, clear space around the motor helps support steady thermal performance during continuous operation. Frame designation 112 indicates the square cross-section that sets bolt-circle spacing and shaft height for this size. Power conductors exit through a quick-disconnect connector on side A, allowing cables to follow a consistent routing path in compact machine layouts. Winding code GD indicates the resistance, inductance, and nominal voltage used with the analog amplifier.

Position and speed signals are generated by incremental encoder feedback, supplying pulse streams to the controller for real-time error correction while still permitting simple homing routines. That feedback method allows the control loop to compare commanded and actual motion continuously during operation. Magnetic stack length index B balances inertia and continuous torque for mid-range loads that must accelerate quickly and stop accurately. Its classification as a motor for analog drives means the feedback and winding parameters are matched to voltage-controlled amplifiers rather than fieldbus servo modules. The motor has no blocking brake, so vertical or overhauling axes must rely on external clamps or the drive’s holding current when power is removed. In applications with suspended loads, a separate holding device may be needed to keep the axis from drifting at standstill.