Product Description:

The MAC090A-0-RD-4-C/110-A-0 is an AC servo motor developed by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Intended for closed-loop analog drives, the unit converts controller current commands into regulated torque and speed for positioning tables, packaging lines, and material-handling stations in industrial automation. It is built for applications that need repeatable rotary motion, stable response to changing loads, and direct integration with established MAC drive hardware. Because it is a servo motor, it supports precise acceleration, deceleration, and controlled holding behavior when paired with a suitable drive controller.

Its flange includes a centering diameter of 110 mm, which helps align the motor accurately with gearboxes or direct-coupled loads. Heat is removed by natural convection, so the housing dissipates losses to the surrounding air without an external fan. Power leads exit through a connector on side A, keeping the cable outlet on one end of the motor for straightforward routing in compact machine spaces. For velocity feedback, the motor uses tacho feedback or an incremental or absolute encoder, allowing the associated analog drive to regulate speed with a consistent signal source. The motor is supplied without a blocking brake, so any holding function at standstill must be provided by the drive or a separate mechanical device.

The winding code is RD, which identifies the electrical winding used in this model. The motor has frame size 090 and frame length A, giving it a compact housing for general-purpose servo axes. This format fits applications such as pressing, filling, and winding equipment where steady motion control and simple passive cooling are useful. Its overall dimensions also help when surrounding machine parts limit space near couplings, guards, or transfer mechanisms.