Product Description:

The PMB33F-00201-02 brushless servomotor is manufactured by Pacific Scientific within the PMB Brushless Servomotors series. As a compact rotary actuator for industrial automation, the motor converts drive current from a servo amplifier into torque that positions or regulates machine axes. It is installed in pick-and-place stations, light conveyors, or indexing tables where closed-loop speed and position control are needed. By combining electronic commutation with internal feedback devices, the unit reduces maintenance associated with brushed designs and supports the rapid acceleration profiles used in automated equipment.

The PMB33F-00201-02 is built on a NEMA Size 34 frame, so its flange and pilot dimensions match common U.S. mounting hardware and simplify retrofits. Power exits the housing through flying leads with MS connectors, allowing quick assembly without opening the motor enclosure. Continuous stall torque is developed at a nominal supply, while a maximum stall phase current of 11.0 ARMS at 240 VAC sets drive sizing and thermal limits. A trio of digital commutation tracks from an integrated Hall sensor reports rotor position to the controller for six-step switching. The magnetic circuit is extended axially by a stack length multiple of 3, which increases copper volume and raises torque density without altering the mounting envelope.

Thermal monitoring is provided by a built-in PTC Thermistor that changes resistance sharply near the allowable winding temperature and prompts the drive to reduce current. A flat shaft end presents a simple driving surface for couplings or pulleys and helps limit slippage under intermittent loads. This shaft style is suited to compact power transmission components that clamp directly to the motor output. The thermal sensor also helps protect the windings during repeated acceleration and deceleration cycles.