Product Description:

The MAC021B-0-OS-2KE/032-B-0/S008 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is intended for use with analog drive controllers where precise torque and velocity control are required in automated machinery. By converting electrical input into regulated shaft motion, the motor supports positioning tables, packaging equipment, and other duty cycles that rely on stable closed-loop performance. Its operating role suits axes that need repeatable starts, stops, and speed changes during normal production cycles.

This model is cooled solely by natural convection, so the housing must be installed where ambient air can remove heat without external blowers. Integrated tacho feedback sends an analog speed signal to the drive, allowing continuous velocity monitoring without a separate encoder channel. The frame uses the compact size 021 format, which helps the motor fit machines with limited installation space. That smaller envelope can be useful in compact machine sections where clearance is restricted by guards, tooling, or nearby components. The length code B gives a longer active stack than the shortest version, and winding code OS sets the phase resistance and inductance values used by compatible MAC drives.

The motor operates without a blocking brake, so any static load that must remain fixed after power removal requires an external holding method. Power conductors enter through a power connector on side B, which can simplify cable routing when side A faces the gearbox or machine frame. This arrangement keeps the electrical connection at the opposite end of the load interface and supports compact installation layouts. The motor is intended for voltage-controlled servo systems rather than digital fieldbus-based amplifiers, which matches the feedback and winding arrangement used on this model.