Product Description:

The PMB33E-10200-02 brushless servomotor is manufactured by Pacific Scientific within the PMB Brushless Servomotors series. As an electromechanical actuator, it receives power from a matched servo drive and delivers precise velocity and torque for positioning axes in assembly cells, indexing stations, and material-handling lines. Its permanent-magnet rotor and stator windings support continuous operation, while the housing size allows installation where a compact high-performance motor is needed. The motor is intended for applications that require repeatable motion without the bulk of a larger frame.

The motor uses a NEMA Size 34 frame, fitting standard 3.4-inch square mountings common on small machinery. At 240 Vac, it draws a nominal stall current of 7.4 ARMS, a rating that guides drive sizing and cable selection during locked-rotor conditions. Power and feedback leave the enclosure through flying leads with MS connectors, simplifying wiring while preserving environmental sealing. A rear-mounted resolver supplies rotor position feedback and commutation angle, eliminating the need for Hall sensors. Mechanical power is delivered through a round shaft that accepts custom couplings without keyways and helps minimize stress concentrations under reversing loads.

Thermal protection is provided by a PTC thermistor, which changes resistance sharply when winding temperature approaches its limit so the drive can reduce power or stop the motor in a controlled way. The magnetic section uses a stack length multiple of 3, increasing active iron to raise continuous torque without enlarging the flange footprint. The motor uses identical resolver pinouts and consistent lead colors across related models. This keeps signal connections arranged the same way when similar motors are installed on the same machine.