Product Description:

The PMB33F-20116-00 is a brushless servomotor produced by Pacific Scientific in the PMB Brushless Servomotors series. It serves as a rotary actuator for closed-loop positioning and velocity tasks, converting electrical power from a matched drive into controlled mechanical torque for automated machinery, pick-and-place tools, and light process equipment. Its NEMA 34 frame and integral feedback package allow straightforward replacement of stepper motors while improving dynamic response in modern motion platforms. That combination also supports indexing and positioning duties that need tighter speed regulation than open-loop motion systems can provide.

The motor uses a NEMA Size 34 frame, so mounting holes and pilot diameter match common 3.4-inch square installations. When operated from a 240 VAC drive, it can deliver continuous stall torque while drawing up to 11.0 ARMS. Power and feedback exit through flying leads with AMP connectors, which avoids a bulky terminal housing and supports fast harness routing in compact assemblies. Rotor position is reported by a digital encoder with commutation, which simplifies phase alignment at startup. The feedback device provides a resolution of 4096 ppr, supporting smooth low-speed motion, stable creep behavior, and accurate servo settling during short positioning moves.

Torque is transmitted through a square key on the output shaft, providing positive drive engagement with pulleys or couplings subjected to reversing loads. The electromagnetic section uses a stack length multiple of 3, which increases active magnetic length without exceeding the frame envelope. The unit is supplied as a standard motor, indicating a regular production configuration rather than a custom build. This arrangement suits applications that need a keyed shaft, integrated feedback, and a compact frame for closed-loop servo operation, while keeping the installation layout consistent with common NEMA 34 mounting patterns.