Product Description:

The PMB33E-00214-03 is a brushless servomotor manufactured by Pacific Scientific in the PMB Series brushless servomotors line. In automated cells, it drives rotary axes that demand tight velocity regulation and repeatable positioning, making it suitable for pick-and-place heads, small conveyors, and indexing tables. Brushless construction avoids commutator wear and helps the motor maintain consistent response during repetitive duty. The motor is intended for compact motion systems where accurate starts, stops, and speed changes are important to overall machine performance.

The motor uses a NEMA Size 34 frame, so its mounting face and pilot diameter align with common U.S. drive hardware. A nominal stall current of 7.4 ARMS at 240 VAC indicates the continuous current required while the rotor is locked, which helps match the motor to a compatible power stage and cabling. Feedback comes from a high-resolution encoder rated at 2048 ppr, allowing fine commutation and position reporting to the motion controller. That encoder output also supports smoother low-speed control and more precise short indexing moves. Wiring is provided through flying leads with MS connectors, combining flexible lead-outs with secure plug connections inside compact enclosures. Rotor position and phase alignment are handled by a digital encoder with commutation, so no separate Hall sensors are required.

The windings use a stack length multiple of 3, which adds iron depth and raises continuous torque compared with shorter versions in the same frame size. The motor includes shaft seal and PTC thermistor protection, so the shaft exit is better protected from splash while the thermistor provides temperature feedback to the drive. That thermal signal can be used to limit current if winding temperature rises too far during heavy cycling. A flat shaft provides a simple coupling surface for pulleys or gears without adding axial length. This shaft style is useful where compact belt drives or direct gear inputs need a straightforward mechanical interface.