Product Description:

The PMB33F-10201-03 brushless servomotor is manufactured by Pacific Scientific and belongs to the PMB Brushless Servomotors series. It is intended for precision velocity and position control on medium-power axes in material-handling and automated assembly cells. By delivering rapid torque rise and predictable motion, the unit converts electrical energy from a matched servo drive into controlled rotation that couples directly to belts, lead screws, or gearheads. Its brushless design eliminates brush wear and helps extend service intervals.

The mechanical interface follows the NEMA Size 34 footprint, so the motor face matches standard 3.4-inch mounting patterns. Power density is supported by a nominal stall limit of 11.0 ARMS, indicating the continuous phase current the drive must sustain when the rotor is locked. Installation is simplified by flying leads with MS connectors, which combine power, feedback, and ground terminations into sealed circular plugs. Output torque is delivered through a round shaft made of stainless steel, allowing clamp couplings when keyed components are not required. Rotor position is conveyed to the controller by an embedded Hall sensor, which provides digital commutation signals that synchronize stator energization with magnet orientation.

To help resist contamination and monitor heat, the motor is supplied with a shaft seal and a PTC thermistor. The seal helps protect the front bearing area, while the thermistor produces an overtemperature signal that the drive can use for shutdown or derating. Electromagnetic output is scaled by a stack length multiple of 3, which increases lamination depth and raises torque without changing the mounting pattern. This added stack length increases active magnetic material while keeping the same basic face size.