Product Description:

The PMB33F-10216-03 is a brushless servomotor manufactured by Pacific Scientific and supplied within the PMB Brushless Servomotors series. It converts power from a matched servo drive into regulated rotary motion for positioning, indexing, and continuous-speed duties on automated lines. The motor’s closed-loop feedback and low electrical time constants support precise control, making it suitable for packaging stations, pick-and-place arms, and similar industrial axes that demand repeatable accuracy.

The frame conforms to NEMA Size 34, so its 3.4-inch square face matches standard servo mounting patterns. Position feedback is generated by an optical encoder that produces 4096 ppr, giving the controller angular resolution of 0.088° per count. When locked at rated load the motor draws a nominal stall current of 11.0 ARMS from a 240 VAC bus, a value that defines drive sizing for continuous torque delivery without thermal overload. Power and feedback conductors exit as flying leads with MS connectors, allowing quick field replacement without rewiring terminal strips. Rotor commutation data is embedded within a digital encoder with commutation, eliminating separate Hall devices and reducing cable complexity.

Additional protection is provided through a factory-installed shaft seal and PTC thermistor; the seal blocks dust or coolant from the front bearing, while the thermistor signals the drive before windings reach critical temperature. Output torque is transmitted through a round shaft that accepts clamp-style couplings where key backlash is undesirable. The laminated core follows a stack length multiple of 3, giving this version higher continuous torque than shorter stacks in the same family. Designed and built by Pacific Scientific, the motor maintains mechanical interchangeability and electrical compatibility across the full PMB portfolio, easing upgrades or spares stocking in multi-axis cells.