Product Description:

The MAC090B-O-JD-1-B/110-A-0/I1250 is a servo motor supplied by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed as a motor for analog drives, it converts drive current into mechanical rotation for positioning and velocity control tasks in industrial automation cells. The unit uses natural convection cooling and is sealed to IP65, allowing installation inside machines without separate enclosures while keeping the feedback connector and power plug reachable on side A.

The mechanical interface uses a centering diameter of 110 mm, which aligns the motor flange with gearboxes or mounting surfaces. When the rotor is locked, the stator can deliver a continuous torque of 6.7 Nm at a continuous standstill current of 18.2 A. Under rated conditions, the shaft reaches 3000 rpm, giving a balance between speed and torque for conveyor, gantry, or tool-axis duties. Transient load spikes are handled through a peak pulse current of up to 137 A, so short acceleration or deceleration events stay within the motor’s intended operating range. Incremental encoder feedback supplies position and speed data to the analog drive controller for closed-loop regulation.

Electromagnetic behavior begins with a torque constant of 0.41 Nm/A, indicating the torque produced for each ampere supplied and helping relate commanded current to mechanical output. The stator winding shows an inductance of 2.0 mH and a resistance of 0.38 Ohm, which affect current rise and copper losses inside the motor. Thermal storage is represented by a time constant of 60 min, meaning heat accumulates gradually and allows moderate overload before steady-state temperature is reached. A rotor inertia of 36×10⁻⁴ kg·m² and a total mass of 18 kg give the axis sufficient damping for smooth motion without external flywheels.