Product Description:

The PMB33E-00116-03 is a brushless servomotor built by Pacific Scientific and supplied within the PMB Brushless Servomotors series. As a NEMA frame motor, it provides rotary actuation for positioning axes, indexing tables, and other motion tasks in industrial automation equipment. The unit combines electronic commutation with encoder feedback so the connected drive can regulate speed and position as load conditions change during transfer, alignment, and point-to-point motion.

Mechanically, the housing follows the NEMA Size 34 footprint, which simplifies mounting to common brackets and gearheads, and the overall body length of 210.3 mm helps the motor fit where installation depth is limited. The winding has a phase-to-phase inductance of 6.8 mH, which helps smooth inverter-generated current ripple and influences electrical response during dynamic operation. At zero speed, the motor can draw up to 7.4 ARMS continuously from a 240 VAC bus for stall duty, allowing the axis to hold substantial static load without a separate brake. Position data is supplied by a digital encoder rated at 4096 ppr, giving the drive fine feedback resolution for alignment and repeatable motion control.

For high-speed moves, the feedback device supports shaft rotation up to 8,000 rpm without losing data, which suits rapid traverse and indexing cycles. Power and feedback connections are provided through flying leads with AMP connectors, a layout that works well when the machine harness is prepared in advance and routed through compact spaces. The motor includes a shaft seal and a PTC thermistor so contaminants are kept away from the bearing area and winding temperature can be monitored by the control system. A flat shaft end is used for clamp-style couplings, which helps support backlash-free power transmission in precision motion assemblies.