Product Description:

The MAC090B-O-JD-2-C/110-A-0 is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. It is intended for analog drive systems that require accurate velocity and position control in packaging, printing, or material-handling axes. Natural convection removes heat from the stator housing, and an internal tacho generator provides feedback so closed-loop regulation can be maintained without an external encoder. The motor connects to system power through a connector on side A of the housing, and a 110 mm centering seat helps align the flange during installation. The motor has no blocking brake, so holding force must be provided by the drive or by external mechanical means.

At rated conditions, the shaft reaches a nominal speed of 3000 rpm. It delivers a continuous standstill torque of 6.7 Nm with a corresponding standstill current of 18.2 A. During rapid acceleration or load transients, the drive may command a peak pulse current of 137 A, giving the motor short-term torque well above its continuous rating. The electromagnetic design develops torque in proportion to current, and each ampere produces about 0.41 Nm/A, which helps the controller regulate output predictably. The phase winding resistance is 0.38 Ω, so power loss at rated current remains moderate and the motor can be matched correctly with the amplifier and supply cabling.

A rotor inertia of 36 × 10⁻⁴ kg·m² supports quick response while helping maintain stable speed during changing loads. The overall mass of 18 kg gives the motor a solid mechanical presence for fixed installation on machine frames. Heat absorbed during continuous duty dissipates gradually because the motor has a thermal time constant of 60 min, which should be considered when setting duty cycles and available airflow. The winding inductance of 2.0 mH helps moderate current ripple, allowing the analog drive to deliver smoother torque across the operating range.