Product Description:

The PMB33F-00201-00 is a brushless servomotor produced by Pacific Scientific within the PMB Brushless Servomotors series. Acting as an electromechanical link between a servo drive and a machine load, it converts controlled stator currents into accurate rotary motion for indexing tables, small conveyors, and automated assembly stations. The motor’s constant-torque design supports repetitive start-stop profiles without mechanical belts or clutches, making it suitable for multi-axis systems that demand synchronized positioning across several stations in a single production cell. Because commutation is electronic rather than brush-based, the design avoids brush wear and supports consistent response during frequent cycling.

The motor uses a NEMA size 34 frame, so its face dimensions match common 3.4-inch mounting patterns. When supplied by 240 VAC, the winding can accept a nominal stall current of 11.0 ARMS, which indicates the current level the motor can hold at stall under rated conditions. Rotor state is detected by an integrated Hall sensor, allowing the drive to determine commutation without an external encoder. Power and feedback conductors exit the housing as flying leads terminated with rugged MS connectors, which helps simplify cable routing in automated equipment. This lead-and-connector arrangement also keeps the motor body compact and supports straightforward integration into enclosed machine spaces.

A flat shaft provides a secure contact surface for the coupling, helping reduce slip during repeated starts and reversals. The magnetic circuit uses a lamination pack with a stack length multiple of 3, which increases active iron while keeping the same frame size. Supplied as a standard motor, the unit comes without a custom winding or an integrated brake. The longer lamination stack supports higher torque from the same mounting envelope, which is useful when the axis must accelerate quickly in limited space. Motion holding, when required at standstill, must be handled by the drive or by external machine hardware.