Product Description:

The PMB33F-10114-03 is a brushless servomotor manufactured by Pacific Scientific as part of the PMB Brushless Servomotors series. Designed for integration with servo drives in automated machinery, the motor translates drive current into precise rotary motion for positioning, feed, and actuation axes. Its compact frame, rare-earth magnet rotor, and stator wound for synchronous operation allow it to supply continuous torque while maintaining tight velocity regulation. This makes the unit suitable for equipment such as electronic assembly stations, small conveyors, and packaging mechanisms that demand repeatable performance.

Mechanical envelope and electrical loading are set by the motor’s NEMA Size 34 frame, a square flange pattern that matches standard 3.4-inch mounting interfaces used on mid-torque axes. Under stall conditions, the winding draws 11.0 ARMS when the supply bus is held at 240 VAC, so drive sizing must accommodate that continuous current without thermal derating. Position data is supplied by a high-resolution feedback device; the integrated encoder delivers 2048 ppr, and its digital encoder with commutation tracks both incremental position and the absolute phase required for sinusoidal phase current control. These parameters support stable low-speed operation and smooth motion even when load inertia varies.

Field wiring enters through flying leads with AMP connectors, letting installers trim cable length and terminate quickly inside the cabinet. For environments where oil mist or fine dust are present, the optional shaft seal and PTC thermistor package protects the front bearing and reports winding temperature to the drive. The output end uses a round shaft so couplings or timing pulleys can slide on without a key, reducing assembly steps. Magnetic material is distributed over a stack length multiple of 3, giving the torque density expected for this frame while keeping overall mass compatible with gantry carriages.