Product Description:

The PMB33C-20116-01 brushless servomotor is manufactured by Pacific Scientific and belongs to the PMB Brushless Servomotors series. It provides closed-loop rotary motion for automated equipment that requires repeatable positioning, steady speed control, and accurate response to changing loads. A permanent-magnet rotor, driven by a matched servo drive, delivers controlled torque while the integrated encoder supplies real-time feedback. Standard NEMA mounting dimensions let the motor replace older units in existing machine layouts without mechanical rework, and the design supports installation on indexers, feeders, small transfer stations, and similar compact motion axes.

The motor has a frame rated at NEMA Size 34, giving a 3.4-inch square face for straightforward machine mounting. The active lamination depth uses a stack length multiple of 3, which increases continuous torque without changing the bolt circle. During locked-rotor or low-speed duty, the winding draws 3.8 ARMS at 240 VAC maximum, a value used when sizing power modules and cabling for thermal limits. Electrical connections exit the housing as flying leads with AMP connectors, reducing junction hardware and keeping assemblies compact. Mechanical drive to pulleys or couplings is transferred through a square key shaft, ensuring positive torque transmission and simplified alignment.

Position feedback resolution is 4096 ppr, produced by a digital encoder with commutation that also supplies electrical angle information to the drive and eliminates separate Hall devices. For environments where fluid ingress is likely, a configurable shaft seal helps prevent lubricant washout and guards the front bearing. As a PMB Series Brushless Servomotor, it uses the standard encoder and commutation arrangement for this motor line. This arrangement keeps feedback and commutation functions in one device, which reduces the number of separate motor-mounted components.