Product Description:

The MAC90B-0-PD-1-C/110-A-0/J1250/S01 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Intended for analog drive systems, the unit converts controlled current from a servo amplifier into precise rotary motion for positioning tables, feeders, and similar automation axes. Its housing brings the power terminals out on side A so cabling can remain inside a cabinet or cable track during installation.

At a nominal speed of 2000 rpm, the shaft reaches its rated working velocity, aligning with medium-speed production duties. The motor supplies a standstill torque of 7.2 Nm, giving static holding force when the axis is locked in place, and this requires a continuous standstill current of 11.9 A from the drive. Torque rises proportionally with current according to the torque constant of 0.67 Nm/A, making current programming the primary means of force control. A phase inductance of 5.1 mH limits the rate of current change and smooths pulse-width modulation switching, while the 0.97 Ω copper resistance sets baseline thermal losses. The rotor inertia of 0.0036 kg·m² provides a balance between rapid acceleration and load stability. Natural convection removes internally generated heat, and the 110 mm centering diameter aligns the flange with standard machine frames.

For short indexing moves, the amplifier may apply a peak pulse current of 86 A without exceeding thermal limits. The enclosure is rated at IP65, preventing dust ingress and resisting low-pressure water jets commonly encountered on factory floors. The motor weighs 18 kg, providing structural rigidity while remaining manageable during installation. A thermal time constant of 60 min means the winding temperature changes gradually, allowing intermittent overloads before the convection path reaches its steady-state temperature.