Product Description:

The PMB33C-10116-02 is a brushless servo motor engineered by Pacific Scientific and supplied within the PMB Brushless Servomotors series. It converts three-phase electrical input into controlled rotary motion, supporting precise indexing, velocity regulation, and torque control in automated assembly lines and packaging equipment. The motor combines rare-earth magnet materials with an integrated feedback device to give compact machines consistent dynamic performance. That arrangement supports accurate start-stop behavior on compact axes where repeatable motion is required throughout long production runs. Its compact format is useful where machines need servo response without a large motor footprint.

With a frame coded as NEMA size 34, the motor bolts directly to machinery that already uses this standardized 3.38-inch square mounting pattern. At a supply of 240 VAC, it can hold the shaft at stall while drawing 3.8 ARMS. Motion feedback is delivered by an optical disk that generates 4096 ppr, allowing the controller to resolve very small position changes. Commutation tracks are provided in the same assembly, so the motor uses a digital encoder with commutation and does not require separate Hall sensors. Power and signal conductors exit the rear housing on flying leads with AMP connectors, enabling quick harness connection during installation.

The mechanical end uses a round shaft that accepts clamp, set-screw, or keyed couplings as required by the load. Internally, the laminated core is built to a stack length multiplier of 3, increasing active magnetic length compared with shorter motors in the same frame family. Thermal protection is furnished by a PTC thermistor embedded in the windings; when resistance rises with temperature, the drive can initiate an orderly shutdown. This helps limit overheating during repeated acceleration, low-speed holding, or other duty cycles that keep current high for extended periods. The motor is suited for conveyor lanes, gantry axes, and similar equipment that require repeatable servo positioning over long operating periods.