Product Description:

The PMB33E-20114-00 is produced by Pacific Scientific as part of the PMB Brushless Servomotors series and is used for closed-loop speed and position tasks in industrial automation. Its electronic commutation removes the need for mechanical brushes, supporting consistent torque delivery and reducing maintenance. The motor is suited for linear actuators, pick-and-place heads, and indexing tables where compact mounting and repeatable motion are priorities. Its compact format also fits axes where installation space is limited but controlled motion is still required.

Several electrical and feedback features shape its operating characteristics. The maximum continuous stall current at 240 VAC is 7.4 ARMS, which is the steady current the drive must supply when the rotor is held at a standstill under load. Mounting follows the NEMA Size 34 frame standard, so the flange fits widely used brackets and gearboxes. Feedback resolution is 2048 ppr, giving the controller 2048 position pulses per revolution for fine incremental motion. Rotor position is reported by a digital encoder with commutation, which also supplies phase information so the drive can apply stator current at the correct electrical angle. Power and signal conductors exit as flying leads with AMP connectors, allowing straightforward connection to the matching drive and feedback interface.

Mechanical coupling is handled through a square key on the shaft, preventing slip when torque is transmitted to pulleys or couplings. The electromagnetic section uses a stack length multiple of 3, which indicates a longer active motor stack for higher torque than shorter motors in the same family. It is offered as a standard motor, so it does not include special windings or seals. Its classification as a brushless servomotor indicates compatibility with servo drives that regulate current, velocity, and position in real time. These features suit motion systems that use couplings, belt drives, or compact gearheads on repeated servo cycles.