Product Description:

The MAC90B-0-PD-1-B/110-A-1/I625/S01 is an AC servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is engineered for analog drive controllers, where a velocity or position command is translated into precise mechanical motion in automated transfer lines, gantries, and assembly cells. Its B-frame size fits common IEC mechanical envelopes, and the construction combines a sealed housing, permanent-magnet excitation, and an integrated brake so the unit can maintain load position when the axis is idle or power is removed. The optional brake module adds only 0.5 kg to the assembly, which helps preserve dynamic performance during repeated acceleration and deceleration.

The mechanical interface centers on a 110 mm centering diameter that aligns the stator flange with gearboxes or machine frames. Under rated drive frequency, the rotor reaches its nominal speed of 2000 min⁻¹, which gives the motor a practical operating speed for positioning and transfer tasks. At zero speed, the motor can deliver a standstill torque of 7.2 Nm, which is the continuous load it can hold while locked. Electromagnetic efficiency is reflected by a torque constant of 0.67 Nm/A, indicating the shaft torque produced for every ampere. To maintain the rated torque, the drive must supply a standstill current of 11.9 A.

Dynamic events are covered by a peak pulse current capability of 86 A, giving short bursts of acceleration without demagnetizing the rotor. The integrated holding brake closes in 20 ms and releases in 60 ms, timings that help the controller manage stopping and restart sequences on vertical axes. An enclosure rating of IP65 blocks dust ingress and low-pressure water jets so the motor can be mounted outside sealed cabinets. The brake also provides 6.5 Nm of holding torque, the thermal time constant is 60 minutes, and the phase inductance is 5.1 mH.