Product Description:

The PMB33E-10100-01 is a brushless servomotor manufactured by Pacific Scientific for the PMB Brushless Servomotors series. It serves as an electromechanical actuator in industrial automation, converting commanded current from a servo drive into regulated torque and speed. The unit’s medium frame size and rare-earth magnet rotor make it appropriate for pick-and-place axes, small conveyors, and indexing tables that require rapid reversals and accurate positioning while remaining compact inside machine enclosures. By integrating a continuous-duty stator with thermal headroom, the motor supports cyclic workloads and helps sustain consistent throughput on automated lines.

The motor is built to the NEMA Size 34 mechanical standard, so its 3.4-inch square face and pilot diameters match readily available mounting brackets and gearheads. During a locked-shaft condition, the windings accept 7.4 ARMS of nominal stall current, a figure the drive controller must accommodate for maximum torque production without nuisance trips. Rotor orientation is reported by a resolver, giving analog sinusoidal feedback that withstands vibration and electrical interference better than digital optics. Power and signal conductors exit on flying leads, and field attachment is streamlined through pre-terminated AMP connectors, reducing connection points that could loosen under cyclic motion.

The motor also includes sealing and shaft features suited to enclosed industrial machinery. A factory-installed shaft seal blocks contaminants and retains grease at the front bearing, extending service life in dusty or washdown cells. Torque is transferred through a round shaft, enabling direct clamp couplings without broached keys. The laminated core uses a stack length multiple of 3, which lengthens the active iron to increase continuous torque density while preserving the external envelope. The motor is intended for use with drives capable of 240 Vac.