Product Description:

The PMB33F-10101-02 is a three-phase brushless servomotor manufactured by Pacific Scientific within the PMB Brushless Servomotors series. Designed for closed-loop motion control, it converts drive current into controlled torque and speed for indexing tables, packaging axes, and similar automation loads that need consistent positioning. A lightweight magnetic rotor reduces moving mass, while the stator windings are optimized for 240 V class inverters commonly found on factory floors. By supplying smooth, ripple-limited torque, the unit maintains product quality and throughput in repetitive or high-cycle applications.

The motor frame follows the NEMA Size 34 standard, giving a 3.4-inch square face that fits gearboxes or brackets that share this footprint. During locked-rotor conditions, its nominal stall current at 240 VAC is 11.0 ARMS, and drive sizing must allow continuous delivery of that current without exceeding thermal limits. Power and feedback conductors exit as flying leads with AMP connectors, which shortens assembly time by removing the need for additional plugs. Rotor position for commutation is provided by an embedded Hall sensor, enabling six-step or trapezoidal control. To protect the windings, a PTC thermistor embedded in the stator changes resistance sharply near the allowable temperature so the drive can initiate a controlled shutdown.

The motor has a round shaft, which simplifies coupling alignment because keyways or splines are absent and makes it suitable for clamp-style hubs. The electromagnetic section is extended by a stack length multiple of 3, which increases available torque without changing the mounting face. This longer active section adds torque capacity while keeping the motor in a compact NEMA 34 package. The added stack length can help match motor output to applications that need more torque without moving to a larger frame.