Product Description:

The MAC093B-0-OS-2-C/110-A-0 is an AC servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is intended for analog drives, where it converts commanded current from legacy velocity amplifiers into precise rotary motion for material handling, printing, and general automation equipment. The motor uses a permanent-magnet rotor to provide consistent torque response, and its electromechanical layout fits the 093 frame class used throughout this product line. This makes it suitable for systems that need stable speed control without adding unnecessary complexity to the motor assembly.

The motor has a frame size of 093 and a length code of B, which provides additional stator iron and increased thermal capacity compared with shorter versions in the same frame. Its nominal speed is 2000 rpm when the analog drive supplies rated current to the windings. Heat is removed by natural convection, so cooling depends on the housing surface rather than forced airflow. Speed feedback is supplied by a standard tachogenerator that outputs 3 V/1000 rpm, and this analog signal supports stable velocity-loop control across the operating range. The tachogenerator is built into the motor, so no external encoder is required for basic speed feedback.

A centering diameter of 110 mm positions the flange accurately on gearboxes or mounting plates. Power leads exit through a connector on side A, which helps keep cable routing compact inside the cabinet. The motor has no blocking brake, so vertical axes require an external holding device during power loss. Winding code OS matches the motor’s electrical characteristics to the analog amplifier voltage range while supporting consistent tachogenerator behavior during load changes. This arrangement keeps the feedback signal proportional to motor speed and supports smooth operation in closed-loop analog drive systems.