Product Description:

The PMB33C-00101-03 is a brushless servomotor produced by Pacific Scientific and belongs to the PMB Brushless Servomotors series. In industrial automation, this motor delivers closed-loop torque and speed so that positioning tables, pick-and-place heads, and small conveyors can follow precise motion profiles under drive control. Its brushless design supports repeatable motion with reduced wear at the commutation system, which helps it suit continuous cycling in compact axis applications. When paired with a compatible servo drive, it can support accurate indexing, short moves, and steady low-speed operation in packaging, assembly, and material-handling equipment.

The motor uses a NEMA Size 34 frame, matching the mounting pattern commonly used for 86 mm square motors on many machine frames. Its winding has a nominal stall current of 3.8 ARMS when supplied by drives rated up to 240 VAC, and this current level indicates the inverter capacity needed to hold maximum static load without motion. Power and feedback are routed through flying leads with AMP connectors, so the cable connection is straightforward at the motor end. Rotor position is derived from Hall sensor feedback, which provides the commutation information needed for startup and stable low-speed control.

An optional shaft seal helps limit lubricant migration and protects the front bearing in applications exposed to light contamination. An integrated PTC thermistor reports winding temperature so the controller can respond before overheating occurs during sustained load. The output shaft includes a flat, giving couplings or pulleys a secure anti-rotation contact surface without a keyed shaft. Internally, the magnetic circuit uses a stack length multiple of 3, which increases torque density without changing the mounting footprint. This arrangement is useful where compact dimensions must be preserved while still providing enough torque for frequent starts, stops, and direction changes.