Product Description:

The PMB33E-10114-02 is a brushless servomotor produced by Pacific Scientific within the PMB Brushless Servomotors series. As a NEMA 34-frame rotary actuator, it converts commanded current into controlled torque for positioning or speed loops in automated machinery. An internal digital feedback element supplies motion data directly to compatible drives, making the unit suitable for pick-and-place heads, indexing tables, and packaging axes. The brushless design also supports clean operation because there are no brushes to wear during normal use.

For feedback fidelity, the motor employs an incremental encoder that delivers 2048 ppr. This resolution allows the drive to resolve 2048 positions per revolution and supports fine servo loop tuning. Its continuous torque is supported by a nominal stall current of 7.4 ARMS at 240 VAC, which indicates the RMS phase current required while the shaft is held at stall. The mechanical interface follows the NEMA Size 34 standard, so the mounting face and pilot dimensions match widely used brackets and gearboxes. Rotor position signals come from a digital encoder with commutation, which removes the need for separate Hall sensors and simplifies wiring. Power and feedback exit the housing through flying leads with AMP connectors, allowing direct connection to mating harnesses and control hardware.

The shaft has a round profile, allowing clamp-style couplings where backlash must be minimized. The motor uses a stack length multiple of 3, which indicates a triple-stack magnetic length for higher torque than shorter versions in the same family. Thermal monitoring is handled by a built-in PTC thermistor, so the drive can reduce current if winding temperature rises too far. This protection helps the motor operate within safe thermal limits during repeated starts, stops, and holding periods.