Product Description:

The MAC090B-0-ND-3-C/110-A-0/J is a servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is intended for use with legacy current-controlled servo amplifiers that provide closed-loop speed and position regulation in production machinery, packaging lines, and transfer systems. In an automation axis, the unit converts electrical torque commands into precise rotation of its output shaft, enabling synchronized movement of tool heads, carriages, or conveyor sections within the overall control architecture. Because the regulating electronics are located in the separate amplifier, the motor remains focused on electromechanical conversion and feedback support during operation.

A centering flange of 110 mm aligns the housing concentrically with mounting plates for accurate installation. The shaft is supplied without a blocking brake, so stationary loads must be held by external clamping or by drive-generated torque when the axis is stopped. Heat is removed through natural convection, eliminating fans or liquid circuits and keeping the cooling method simple. The stator coils connect through a connector that accepts industrial circular plugs, allowing secure cable attachment at the motor. The unit is designated as a motor for analog drives, so the torque loop is closed in an external amplifier rather than by onboard electronics.

Position sensing uses tacho feedback on a dedicated rear encoder hub, and a second shaft end is provided so the tachogenerator can mount without an inline coupling. The feedback signal has standard tacho quality, supplying a proportional voltage that the analog drive uses for speed regulation. Incoming power reaches the stator windings from side A, keeping power and control cables on a common machine face for cleaner routing. This layout places the feedback device at the rear of the motor while leaving the primary output shaft available for the driven load. It also supports straightforward integration where the amplifier depends on a stable analog speed signal for continuous correction.