Product Description:

The PMB33C-10214-03 is a brushless servomotor built by Pacific Scientific and assigned to the PMB Brushless Servomotors series. This motor converts electrical energy into controlled mechanical rotation through electronic commutation and a permanent-magnet rotor. Because commutation is handled electronically, the motor can respond quickly to changing drive commands without brush wear. That operating principle supports repeatable motion in packaging equipment, feeders, and other machinery that depends on controlled rotary response. Within motion control systems, it provides the actuation needed for positioning, velocity regulation, and short indexing moves on automated machines.

The motor uses flying leads with MS connectors, allowing direct wiring to panel-mounted drives while preserving shield continuity through circular military-style plugs. Its mechanical frame follows the NEMA Size 34 outline, so bolt patterns match standard 3.4-inch square motor mounts used on small gantry and conveyor modules. Continuous stall torque depends on drive current, and the drive may supply up to 3.8 ARMS at 240 VAC for locked-rotor operation within the motor's thermal limits. Feedback is provided by a digital encoder with commutation, and its incremental tracks provide 2048 ppr resolution for precise servo loop control. The encoder also supplies commutation information so the drive can maintain accurate rotor alignment during startup and low-speed operation.

A stack length factor of 3 increases the active copper and iron volume, which can raise peak torque without changing the mounting footprint. The motor includes a shaft seal and a PTC thermistor; the seal helps limit dust or fluid entry at the coupling, while the thermistor provides temperature input for overload protection. The output uses a round shaft, which works well with clamp-style hubs and timing pulleys. This shaft form is also well suited to couplings that rely on clamping force instead of a keyed connection.