Product Description:

The PMB31D-00200-03 is a servo-grade motor built by Pacific Scientific and supplied within the PMB Brushless Servomotors series. It serves as the electromechanical element that translates regulated drive current into torque and speed for automated pick-and-place axes, light conveyor stations, and indexing tables. By using a permanent-magnet rotor and electronic commutation, the motor supports the closed-loop response needed for precise positioning tasks in programmable industrial machinery. That operating style fits repeatable motion on compact machinery that needs accurate starts, stops, and speed changes.

This model uses the dimensional envelope of NEMA Size 34, allowing direct mounting to gearheads and frames that follow the corresponding U.S. standard. Power and feedback lines exit through flying leads with MS connectors. These preterminated cables shorten installation time, maintain shield continuity, and keep the external connection layout straightforward in enclosed machine spaces. A built-in resolver supplies analog position data to the drive so real-time velocity and alignment corrections can be executed even in electrically harsh areas. When energized from a 240 VAC bus, the stator can safely produce a nominal stall current of 5.4 ARMS, which indicates the continuous phase current available under locked-rotor conditions without triggering thermal limits.

The output shaft has a flat, so couplings can be clamped without keys and backlash can be reduced in reciprocating loads. A factory-installed shaft seal and PTC thermistor help block contaminant ingress and report winding temperature for drive-side derating. The laminated core uses a stack length multiple of 1, which keeps the magnetic path short and helps keep inertia low. The short stack also supports quick response when the axis changes direction or follows short move profiles. Its permanent-magnet brushless design eliminates commutator wear in continuous-duty motion platforms.