Product Description:

The MAC90B-0-PD-2-C/110-A-0 is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed as a motor for analog drives, it supports closed-loop speed control through an internal tachogenerator and serves positioning tables, material-handling arms, and other industrial automation axes that need repeatable velocity and torque. Its integrated feedback allows the connected drive to monitor motor speed continuously during operation.

The motor sustains a continuous standstill torque of 7.2 Nm while drawing 11.9 A, which indicates the load it can hold without overheating under locked-rotor conditions. The motor reaches a rated speed of 2000 rpm, providing a fixed operating point for sizing gear ratios or direct-drive arrangements. A torque constant of 0.67 Nm/A links commanded current to produced torque, which helps the drive regulate output predictably. Short acceleration bursts are possible because the drive can supply a peak pulse current of 86 A. The housing cools by natural convection, so no external blower is required, and a 110 mm centering diameter aligns the flange with precision mounting faces. The motor has no blocking brake, so holding force must come from the drive or external mechanics. A standard tachogenerator reports real-time speed, and the power connector is located on side A for consistent cable routing.

The 18 kg mass moderates vibration and stores thermal energy that is released over a thermal time constant of 60 min. A rotor inertia of 36 × 10⁻⁴ kg·m² supports quick response while maintaining stability during follow-up moves. The stator has a winding inductance of 5.1 mH, which helps filter current ripple, and a winding resistance of 0.97 Ohm, which affects the voltage required for rated current. These values influence current response and thermal behavior during repeated motion cycles.