Product Description:

The PMB31B-00100-00 is a brushless servomotor in the PMB Brushless Servomotors series. It is a permanent-magnet motor intended for closed-loop positioning and velocity control. The unit converts electrical power from a matched drive into precise rotary motion for automated machinery such as pick-and-place heads, indexing tables, or light conveyor axes. That role suits applications that need repeatable starts, stops, and speed changes under changing load conditions.

The motor frame is classified as NEMA Size 34, giving it a standardized mounting footprint for common 3.4-inch square motor installations. During stall at the rated supply, the windings draw up to 2.7 ARMS, and this current figure helps match the amplifier to the motor without overloading the drive during low-speed holding conditions. Power is introduced through flying leads with AMP connectors, so wiring can be completed quickly without soldering or field-installed plugs. A resolver provides rotor position feedback and tolerates high temperatures and electrical noise in demanding industrial environments. This feedback method supports dependable angle tracking without relying on optical code disks. Motion is transmitted through a flat shaft that offers a broad contact surface for set-screw or clamp-style couplings and helps prevent rotational slip under load.

The electromagnetic core uses a stack length multiple of 1, which makes this the shortest magnetic stack in the platform and keeps inertia low during rapid acceleration. The shorter stack can be useful where compact motor length and quick direction changes are important in tightly spaced mechanisms. Ordering is designated as a standard motor, so no special windings, seals, or custom hardware are included. Its place in the PMB Brushless Servomotors series keeps the mechanical format and control characteristics consistent across the product line.