Product Description:

The PMB33E-10200-03 is a PMB Series brushless servomotor produced by Pacific Scientific and belongs to the PMB Brushless Servomotors series. Designed for closed-loop motion axes, the unit converts drive current into controlled torque and speed for pick-and-place gantries, indexing tables, and similar automation equipment. The motor uses Hall-free commutation with a resolver feedback element, allowing the paired drive to command position and velocity with high repeatability across its continuous duty range. This arrangement removes the need for Hall sensors inside the motor body and keeps the feedback package compact. It fits directly into size-34 mounting patterns common on compact machinery.

Mechanical integration is governed by its NEMA Size 34 frame, giving the flange and pilot dimensions expected by standard slide, gearhead, or belt-drive fixtures. During locked-rotor conditions at 240 VAC, the windings draw up to 7.4 ARMS, so the connected drive must supply that current without exceeding thermal limits. Power and feedback exit through flying leads with MS connectors, which simplifies wiring when the motor is installed in confined spaces or routed through existing cable paths. Rotor position is detected by a resolver, which provides analog angle feedback across a wide temperature span and tolerates electrical noise better than many incremental encoder arrangements. Motion is transferred through a round shaft, easing direct coupling to pulleys or flexible couplings where keyways are not required. The shaft format also supports compact coupling hardware in machines with limited radial clearance.

Application tailoring is supported by the factory-installed shaft seal and PTC thermistor. The seal blocks lubricant ingress at the shaft opening and helps protect internal components in dirty operating areas. The thermistor sends temperature data to the drive for overload protection, allowing the control system to react when winding heat rises during sustained load. The magnetic core uses a stack length multiple of 3, which raises torque output relative to shorter stacks without changing the mounting envelope.