Product Description:

The MAC90B-0-JD-2-C/110-B-1 is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Classified as a motor for analog drives, it transforms drive amplifier commands into precise shaft rotation for positioning or speed regulation in automated machinery. Its tachogenerator and sealed housing let machine builders combine responsive motion with minimal external sensors in assembly lines, packaging stations, and material-handling axes.

The motor has a nominal speed of 3000 rpm, enabling operation with compatible drive stages. The shaft can supply a continuous torque of 6.7 Nm while drawing a continuous current of 18.2 A; these values indicate the steady mechanical workload the motor can sustain without exceeding its thermal limits. A torque constant of 0.41 Nm/A links drive current to developed torque, allowing predictable closed-loop tuning. Heat is removed solely by natural convection, so installation must ensure unobstructed airflow around the 110 mm centering flange. The winding has a resistance of 0.38 Ω and an inductance of 2.0 mH, which influence current ripple and drive filter sizing. The integrated tachogenerator delivers 3 V per 1000 rpm. Power enters through the terminal block on side B of the motor.

During rapid acceleration, the drive may command a peak pulse current of 137 A, providing short-term torque multiplication for indexing moves. When power is removed, an internal brake holds the shaft with 6.5 Nm of static torque to prevent load drift. The housing has an industrial IP65 rating, sealing the 18 kg assembly against dust and low-pressure water jets. Its rotor inertia of 0.0036 kg·m² balances quick response with stable operation. A 60-minute thermal time constant indicates how slowly the winding temperature rises after a load change, supporting intermittent duty cycles without exceeding safe limits.