Product Description:

The MAC090C-0-KD-3-C/110-B-1/S005 is a servo motor produced by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Intended for analog drive controllers, it converts proportional current commands into controlled torque for positioning, conveying, or indexing axes in automated equipment. The motor body follows the 090 frame format and mates with standard flange patterns, allowing it to fit existing MAC machine layouts. Its mechanical design targets medium-inertia loads that demand continuous duty operation without auxiliary cooling.

Its centering seat diameter of 110 mm aligns the stator housing precisely with mating machine frames, limiting radial runout at the shaft. A cooling system based on natural convection removes loss heat through the aluminum casing, eliminating the need for fans or liquid circuits. The motor reaches base speed at 1500 rpm, a value used by the drive for velocity feedback and commutation timing. The integral tacho generator supplies 3 V/1000 rpm, so the controller receives 4.5 V at nominal speed for closed-loop regulation. Electrical behavior is tied to the KD winding code, which sets phase resistance and inductance for use with matched analog amplifiers.

A standard blocking brake mounted on the non-drive end locks the shaft whenever power is removed, preventing uncommanded motion on vertical or suspended loads. Position feedback is delivered by an auxiliary shaft that carries tacho feedback and a second shaft end, providing an extra coupling point for an encoder or mechanical load. Power enters through a connector on side B, which helps keep the cable route clear of moving machine elements. Motion smoothness is supported by the motor’s standard tacho quality, which minimizes ripple in the velocity feedback signal for consistent speed regulation.