Product Description:

The PMB33E-10200-01 is a brushless servomotor produced by Pacific Scientific for the PMB Brushless Servomotors series. Intended for medium-torque rotary stages, the unit converts drive current into repeatable mechanical output that positions trays, webs, or pick-and-place heads with closed-loop accuracy. When paired with a compatible amplifier, it supports rapid starts, stops, and reversals so automated lines can maintain cycle rates without overshoot or drift. Its brushless design also supports smooth response in repetitive motion systems where stable speed and position control are required over frequent duty cycles.

Built on a NEMA Size 34 frame, the motor bolts directly to standardized four-hole patterns found on midrange gearheads and linear actuators. When the DC bus is derived from 240 VAC, the windings can sustain a nominal stall current of 7.4 ARMS without exceeding thermal limits. Rotor angle is reported through a resolver, which provides feedback for closed-loop operation and is well suited to high-frequency commutation. Field termination is streamlined because power and feedback exit the end bell through flying leads with MS connectors, so the mating plugs can be crimped or soldered without opening the housing. For washdown or lubricant-rich environments, a shaft seal is installed to reduce fluid ingress along the rotating journal and protect the front bearing.

Torque capacity is influenced by the laminated core, and this variant uses a stack length multiple of 3 to increase active magnetic length without changing the mounting dimensions. A round shaft simplifies coupling to timing pulleys, flexible couplers, or integral brakes by removing keyway alignment and reducing stress risers at the hub interface. This shaft form is also suitable for compact drive trains that rely on clamp-style hubs or other friction-based couplings.