Product Description:

The PMB33C-00101-01 is a brushless servomotor produced by Pacific Scientific and placed within the PMB Brushless Servomotors series. It is intended for closed-loop motion axes where compact size and stable stall torque are required for indexing, conveying, or coordinated robotic joints in industrial automation lines. Its brushless design supports controlled rotary motion with consistent feedback response, which helps repeatable positioning and smooth speed regulation during frequent starts, stops, and direction changes.

The frame follows the NEMA Size 34 standard, so its mounting face and pilot diameter match widely used 86 mm flange hardware. The nominal stall current is 3.8 ARMS, which is the continuous phase current the drive must supply to hold full rated torque when the rotor is locked. Rotor position feedback is obtained from an integral Hall sensor, allowing six-step commutation during startup and low-speed operation. Power and signal conductors exit as flying leads with AMP connectors, which reduces cabinet depth because no panel-mounted connector shell is required. A shaft seal is available as a customization to guard the front bearing and internal magnetics in areas where oil mist or dust can enter along the shaft.

A flat shaft end simplifies coupling because set-screw hubs seat against one planar surface, helping prevent slip during reversing duty. The laminated stator stack uses a stack length multiple of 3, which increases copper volume and magnet interface area to raise continuous torque without changing the flange size. Rated electrical performance is referenced to 240 VAC, so the selected drive must ensure that the DC bus derived from this line voltage can furnish the stated stall current. The motor is intended for compact servo axes that need dependable torque in a standard mounting format.