Product Description:

The PMB33F-00201-03 brushless servo motor is built by Pacific Scientific as part of the PMB Brushless Servomotors series. It is intended for closed-loop motion axes where repeatable torque and speed are required in industrial automation cells. By combining brushless windings with Hall-based feedback, the device converts electrical power into tightly regulated mechanical rotation for pick-and-place heads, indexing tables, and packaging actuators. Because the rotor is electronically commutated, the motor is suited to applications that need smooth low-speed control as well as frequent acceleration changes.

Its frame follows the NEMA Size 34 outline, so mounting holes and pilot diameters align with standard face-mount gearboxes and brackets. The standard frame outline also allows the motor to fit many existing mounting arrangements without custom adapter plates. On a 240 V AC bus, the motor can deliver a nominal stall current of 11.0 ARMS. Power and feedback leave the housing through flying leads with MS connectors, which keeps the connection arrangement compact while still allowing secure mating. Rotor position is detected by an internal Hall sensor, enabling commutation with compatible drive electronics. Electromagnetic output is increased by a stack length multiple of 3, which provides more active material than shorter PMB variants.

The factory-applied shaft seal and PTC thermistor option adds protection at the output end and provides temperature input for shutdown logic. The thermistor gives the connected controller a direct temperature signal so overheating can be addressed before insulation stress increases. A flat shaft simplifies coupler or pulley installation and helps prevent slip without the added length of a keyway. The motor shares electrical constants, cogging behavior, and winding conventions used across other PMB models. In multi-axis systems that use the same product line, feedback logic and connector hardware remain aligned.