Product Description:

The PMB33E-10101-01 is a brushless servomotor produced by Pacific Scientific in the PMB Brushless Servomotors series. Designed for closed-loop motion systems, it converts drive current into precise rotary movement for indexing tables, pick-and-place heads, and other automated axes that require consistent torque across variable speeds. This arrangement supports accurate starts, stops, and speed changes in equipment that depends on repeatable servo response. By combining permanent-magnet excitation with electronic commutation, it delivers repeatable positioning without the brush maintenance associated with conventional motor designs.

Based on the NEMA Size 34 frame, the motor matches standard 3.4-inch square mounting patterns used in many motion systems. A nominal stall current of 7.4 ARMS at 240 VAC indicates the continuous phase current needed to hold rated torque, so the selected drive must support that load without overheating. Field wiring is simplified by flying leads with AMP connectors, which removes the need for a separate terminal block. Rotor position feedback is supplied by an integrated Hall sensor, providing commutation signals to the drive during operation. Internally, the lamination stack uses a stack length multiple of 3, which increases active iron length compared with shorter motor lengths.

For applications exposed to oil mist or fine particulate, the motor is available with a shaft seal to help keep contaminants away from the front bearing. The output spindle uses a round shaft, allowing clamp or set-screw couplings where moderate backlash is acceptable. Its modular stack design allows torque and speed characteristics to vary with motor length while the basic frame format remains consistent. This layout keeps the mechanical package compact while supporting the operating demands of general automation equipment.