Product Description:

The PMB33C-00200-02 brushless servomotor is produced by Pacific Scientific as part of the PMB Brushless Servomotors series. It is a permanent-magnet, three-phase actuator designed to deliver repeatable torque and velocity commands from a matched drive. Within an automated line, the motor provides the primary rotary element for conveyors, gantry axes, or feed rolls where precise speed regulation and bidirectional positioning are required. Because it is intended for closed-loop motion, it is suitable for equipment that must maintain commanded speed through changing loads and short indexing moves.

Its frame follows the NEMA Size 34 standard, allowing installation on machines already drilled for that bolt circle. Power and feedback exit through flying leads with MS connectors, so cabling can be routed through existing energy chains before mating to standard circular shells. Under a 240 Vac supply, the motor reaches a nominal stall current of 3.8 ARMS, which helps with fuse selection and amplifier current limiting. A built-in PTC thermistor monitors winding temperature, and rotor position is fed back with a resolver that provides analog sine-cosine signals suited to high speeds and electrically noisy environments. This arrangement keeps the power and feedback interfaces grouped at the motor body, which can simplify routing in crowded machine sections.

The shaft carries a flat on its diameter, simplifying the connection to pinions or pulleys without requiring a keyed shaft. This model uses a 3 stack length multiple, which increases magnetic volume without changing the mounting footprint. The unchanged mounting envelope helps preserve clearance around couplings, guards, and adjacent components in dense machine layouts. The shaft form also allows straightforward alignment of clamping hubs and similar drive elements during assembly. These features make the motor suitable for compact axes where space is limited and steady torque delivery is needed over repeated motion cycles.