Product Description:

The MAC90B-0-JD-1B/110-A0/J625/S01 is an AC servo motor built by Bosch Rexroth Indramat and placed within the MAC AC Servo Motors series. Designed for analog drive systems, it converts electrical command signals into controlled mechanical rotation for positioning and velocity tasks on assembly lines, packaging stations, and processing machines. The motor is supplied without a blocking brake, so holding torque at standstill must be provided by the drive or by external mechanics. It uses natural convection for cooling and mounts through a 110 mm centering diameter, which supports installation on enclosed machine axes.

The motor produces a continuous torque of 6.7 Nm while drawing a steady phase current of 18.2 A. At its nominal operating point, the shaft runs at 3000 rpm, which suits many general-purpose servo applications and supports responsive speed control. For rapid load changes, the stator can accept up to 137 A for short pulses, helping the axis accelerate quickly during transient demands. The IP65 enclosure keeps dust and water jets away from internal components, and power and feedback cabling are routed on side A to simplify cable direction in suitable machine layouts. Reliable operation is supported up to 1000 m above sea level.

Thermal behavior is characterized by a time constant of 60 min, so winding temperature rises gradually during sustained operation rather than peaking immediately. Dynamic response is helped by a rotor inertia of 36 × 10⁻⁴ kg·m², which balances acceleration capability with smooth mechanical behavior. Torque production scales with current through a constant of 0.41 Nm/A, giving the drive a predictable relationship between commanded current and motor output. The inverter sees a phase inductance of 2.0 mH, and together with the winding resistance, this electrical behavior supports stable current control and precise velocity regulation in analog systems.