Product Description:

The MAC090B-0-PD-1B/110-A-0/S001 belongs to the MAC AC Servo Motors series manufactured by Bosch Rexroth Indramat. Classified as a motor for analog drives, it converts drive-stage current into controlled rotary motion for positioning and speed-regulated tasks in automation cells. Natural convection removes heat from the stator, so the unit can be installed without external blowers. A 110 mm centering diameter aligns the flange to gearboxes or mounting plates, while the 24 mm shaft with a 50 mm extension transfers torque to couplings. This model is supplied without a blocking brake, which reduces mass and is suitable for applications where the load is mechanically locked elsewhere.

The electrical profile sets continuous and dynamic limits. At standstill the motor can develop 7.2 Nm while drawing a steady 11.9 A, and this constant torque supports low-speed holding applications. During motion, the winding set labeled PD reaches a nominal speed of 1500 rpm, matching drive outputs built for standard 50/60 Hz machine sequences. Short bursts up to 86 A accommodate rapid acceleration, and each ampere contributes approximately 0.67 Nm/A through the torque constant. Incremental encoder feedback transmits position data to the analog drive so current loops can react to load changes without overshoot.

Mechanical and thermal characteristics round out the operating range. A rotor inertia of 36 × 10⁻⁴ kg·m² balances quick response with load stability, and the overall mass is 18 kg, light enough for gantry axes while still helping to damp vibration. The laminated iron core has a winding inductance of 5.1 mH and a phase-to-phase resistance of 0.97 Ω, and these values influence current rise and heat dissipation during indexing cycles. With a thermal time constant of 60 minutes, the frame temperature changes slowly, allowing the motor to track duty-cycle variations without frequent derating. Power and feedback conductors exit on Side A, which helps keep cable routing orderly inside compact control cabinets.