Product Description:

The PMB33F-10116-03 is a servomotor produced by Pacific Scientific for the PMB Brushless Servomotors series. It mates with digital amplifiers to deliver precise torque and velocity control in automated assembly cells, pick-and-place stations, and index tables. By supplying real-time position feedback through an integrated encoder, the unit lets a motion controller execute repeatable moves without mechanical backlash. This arrangement supports smooth acceleration, deceleration, and holding performance on axes that require responsive motion under changing loads.

The mechanical envelope follows the NEMA Size 34 standard, so the 86 mm square face mounts directly to common gearbox or adapter plates. With a nominal stall capability of 11.0 ARMS at 240 VAC, the windings can remain energized at standstill without exceeding thermal limits, which sets the continuous torque baseline for drive sizing. High-density feedback is achieved through a 4096 ppr optical encoder, enabling sub-degree position resolution for tight servo loops. Conductors are supplied as flying leads with AMP connectors, allowing termination in the cabinet rather than on the motor body. Commanded phase alignment and rotor angle are detected through a digital encoder with commutation, eliminating separate Hall devices and reducing electrical startup steps.

The factory option set adds shaft seal and a PTC thermistor, so the front bearing is protected from splash while the thermistor reports temperature excursions to the drive. A round output shaft simplifies direct coupling with collets, pulleys, or flexible couplings and avoids keyway stress concentrations. Magnetic stack height is set at a multiple of 3, which increases continuous torque without changing the frame size or mounting pattern. This option set is useful where the motor may see frequent starts, stops, and dwell periods, and where winding temperature needs to be monitored during operation.