Product Description:

The PMB33C-10200-01 is a brushless servomotor from Pacific Scientific in the PMB Brushless Servomotors series. It uses a permanent-magnet rotor and low electrical inertia to support closed-loop positioning, indexing, and velocity regulation in factory automation equipment. When paired with a compatible drive, the motor provides bidirectional torque for conveyors, gantry axes, and small spindle attachments. Its operating profile suits automated stations that require repeatable motion through frequent acceleration, deceleration, and holding cycles.

The motor uses a space-efficient NEMA size 34 frame, so it mounts on the common 3.4-inch square face used by many servo and stepper packages. Power and feedback exit through flying leads with MS connectors, which helps routing through cabinet openings while keeping quick-disconnect terminations at the cable ends. This layout can simplify cable management where the motor is installed in confined machine spaces. Rotor position is sensed by a resolver, an analog feedback device that tolerates vibration and elevated ambient temperatures better than many optical systems. At 240 VAC, the winding draws a nominal stall current of 3.8 ARMS, and that value helps match the motor to the drive current range and conductor capacity.

The motor includes a factory-installed shaft seal to limit dust or lubricant entry along the output journal. It also uses a round shaft, which avoids keyway stress concentrations and works well with clamp-style couplings on precision linear stages. Continuous torque is supported by a stack length multiple of 3 magnetic core, using three lamination sections in the stator without changing the face size. The lamination pack keeps the motor's electrical characteristics consistent for this length configuration. That steady electromagnetic layout supports predictable response with the matching drive during speed and position control.