Product Description:

The MAC090A-0-RD-3-C/130-B-0/S011 is an AC servo motor built by Bosch Rexroth Indramat and supplied through the MAC AC Servo Motors series. It delivers rotary motion for indexing tables, pick-and-place axes, and general machinery that uses analog velocity and torque loops. By translating current from a compatible drive into controlled shaft torque, the unit enables closed-loop positioning and speed regulation across automated production cells. The motor is suited to applications that require responsive acceleration, repeatable movement, and stable operation under changing mechanical loads.

Mechanical mounting is simplified by a centering pilot of 130 mm, which aligns the flange with gearboxes or machine frames that have a matching bore. Heat is removed through natural convection, so no external blower or liquid-cooling circuit is required. Motor terminals are accessed through a connector on side B, allowing cables to exit away from the driven load and reducing interference with nearby mechanical components. Rotor position and speed information are provided by a combined tacho feedback device on a second shaft end. This arrangement supplies an analog velocity signal while providing space for an auxiliary encoder when higher position resolution is required. The feedback element is supplied in the manufacturer’s standard accuracy class, supporting typical motion-control tolerances without special feedback adjustments.

The motor has no blocking brake, so vertical or suspended loads must be held by a mechanical lock or drive-applied torque when the axis is stationary. Its operating characteristics are intended for use with analog drive controllers, allowing integration into machinery that uses analog command and feedback circuits. Because cooling relies solely on ambient airflow, adequate clearance should be maintained around the housing to prevent heat from accumulating during continuous operation. The side-B power cable should be routed separately from the analog tacho circuit where practical, helping reduce electromagnetic interference in the feedback signal. Proper cable separation supports stable speed regulation, particularly in equipment with switching devices, high-current conductors, or long cable runs near the motor connection. The absence of a brake also reduces rotating mass, while external load-retention equipment can secure the axis whenever motor torque is unavailable.