Product Description:

The PMB33E-00100-01 is a brushless servomotor manufactured by Pacific Scientific for the PMB Brushless Servomotors series. The unit functions as a torque and velocity actuator that couples to a digital drive to move coordinated axes in automated assembly lines, pick-and-place modules, and material-handling equipment. By using permanent magnets instead of brushes, the motor supplies precise motion with reduced electrical noise and minimal maintenance, making it suitable for continuous-duty industrial automation. Because commutation is electronic, the motor can respond smoothly to drive commands during start, stop, and speed-change cycles.

The frame is classified as NEMA Size 34, so the mounting face follows the 3.4-inch industrial standard and can bolt directly to gearboxes or linear stages that share this footprint. Under locked-rotor conditions at 240 VAC, the winding draws 7.4 ARMS. This current must be supported by the matched servo amplifier, and the machine panel must dissipate the related heat load. Power and feedback exit the housing through flying leads with AMP connectors, which simplifies routing through cable tracks and avoids the need for an external motor plug. Rotor position is detected by a resolver, and the housing is fitted with a shaft seal to protect the front bearing against oil mist and fine dust.

The output shaft has a flat instead of a keyway, providing a positive drive surface while keeping rotor inertia low for rapid acceleration. The motor uses stack length multiple 3, which increases copper volume and torque density relative to shorter stacks in the same frame. This longer active section helps the motor deliver more torque without changing the established mounting format. The shaft arrangement also allows compact couplings to clamp directly to the machined drive surface, which helps simplify alignment in tightly spaced axis layouts. The motor is well suited to indexing axes and transfer mechanisms that need fast acceleration with controlled torque output.