Product Description:

The PMB33E-00116-02 is a brushless servomotor produced by Pacific Scientific and belongs to the PMB Brushless Servomotors series. Designed for closed-loop motion axes in industrial automation, the unit converts drive current into continuous rotary torque while returning position feedback to the controller for accurate regulation. It combines permanent-magnet rotor technology with electronic commutation to provide smooth rotation for pick-and-place modules, indexing tables, and packaging actuators that require accurate speed and position control. This operating style suits repetitive automation cycles that require controlled acceleration, deceleration, and stable motion in a compact installation.

Its frame follows the NEMA size 34 standard, so the flange and pilot match common American servo mounts used on compact machinery. Motion feedback comes from an integrated digital encoder that delivers 4096 ppr resolution, allowing the controller to issue fine position commands without interpolation. Under maximum static load, the winding can draw 7.4 ARMS at 240 VAC, which helps size the inverter for continuous duty. Power, feedback, and thermal leads exit the housing through flying leads with AMP connectors, simplifying connection to panel harnesses where cabinet space is limited. The feedback device also provides commutation tracks because it uses a digital encoder with commutation, which removes the need for separate Hall sensors and reduces wiring complexity.

The mechanical output shaft is flat, presenting a broad surface for set-screw couplings and helping reduce play compared with keyed connections in light servo assemblies. The flat section also supports secure clamping without adding a keyway slot to the shaft. Internal temperature is monitored by a PTC thermistor, which increases resistance sharply near the insulation limit so the drive can trigger a controlled shutdown before overheating damages the windings. The lamination stack uses a length multiple of 3, giving the motor higher continuous capacity than shorter stacks while keeping the same general mounting envelope.