Product Description:

The PMB33F-00100-01 is a brushless servomotor built by Pacific Scientific. The unit is intended for closed-loop motion tasks that require precise torque at standstill and accurate feedback in machine tools, pick-and-place modules, and indexing axes. That makes it suitable for applications that must hold position at low speed, reverse quickly, and respond predictably to command changes during repetitive motion cycles. It combines a permanent-magnet rotor with electronic commutation so that a matched drive can regulate position, velocity, and stall torque during industrial automation sequences.

Its frame corresponds to NEMA Size 34, allowing installation in equipment designed for that mounting pattern. A stack length multiple of 3 increases the active iron length so higher continuous torque is possible without enlarging the frame cross-section. When powered from a 240 Vac drive, the nominal stall current reaches 11.0 ARMS, which is the continuous locked-rotor current needed to hold load without overheating. Power conductors exit the housing as flying leads with AMP connectors, an arrangement that reduces enclosure depth and eliminates a protruding terminal box. Rotor position is reported by a resolver, which provides rotor-angle feedback and strong noise immunity under vibration.

The shaft is machined with a flat, which simplifies coupling to set-screw hubs and removes the need for keyways. An optional shaft seal can be added to limit fluid ingress along the output shaft in washdown or oil-mist environments. This shaft arrangement is suited to couplings that clamp or lock with a set screw rather than a keyed bore. The motor belongs to the PMB Brushless Servomotors series, where this configuration supports general servo duty with straightforward mounting and protected shaft entry.