Product Description:

The PMB33F-00100-03 is a brushless servomotor manufactured by Pacific Scientific within the PMB Brushless Servomotors series. It provides electronically commutated torque for automated axes that demand repeatable positioning and rapid cycle times. By integrating windings, permanent magnets, and feedback inside a compact housing, the motor converts electrical power from a servo amplifier into controlled mechanical rotation for conveyors, pick-and-place heads, and material-handling fixtures. Its square flange geometry matches common NEMA layouts, making integration straightforward in both new and retrofit installations.

With a mechanical frame coded as NEMA Size 34, the motor uses a standard 2.75-inch pilot and four-bolt mounting pattern for common machine interfaces. At a DC link derived from 240 VAC, it can sustain a nominal stall current of 11.0 ARMS; the drive must be sized to deliver that current continuously when the rotor is locked. Position feedback is supplied by a resolver, an electromagnetic transducer that maintains accuracy across thermal swings and electrical noise. Power, signal, and protective earth conductors exit as flying leads with AMP connectors, which support direct connection to the matching harness. The output shaft incorporates a flat section so clamp couplings can transmit torque without keys.

This model includes a shaft seal and a PTC thermistor; the seal helps keep contaminants away from internal components, and the thermistor reports excessive winding temperature to the controller. The laminated stator core is built to a stack length multiple of 3, which raises continuous torque while keeping rotor inertia moderate. The windings support high-bandwidth sinusoidal commutation, which helps reduce torque ripple during precise motion control. Its compact profile suits packaging lines, electronic-assembly gantries, and small conveyors where installation space is limited.