Product Description:

The R33GEAC-B2-NS-NV-00 is a brushless servo motor manufactured by Pacific Scientific for the R Servomotors series. It is intended for closed-loop positioning and speed regulation in industrial automation cells, conveying equipment, and pick-and-place axes where compact electromechanical power is required. Its compact format and conventional housing layout let it fit machinery that follows this motor family’s dimensional pattern while supplying the torque density expected from rare-earth magnet designs.

The continuous stall capability is 2.5 Nm, so the motor can hold static loads without overheating when the shaft is locked by the drive. A rated speed of 3000 rpm establishes the mechanical output the winding can sustain under nominal bus voltage. For fast indexing moves, the electromagnetic structure supports a peak torque of 6.54 Nm, giving headroom for acceleration before thermal limits are reached. Rotor inertia is held to 0.093 kg·m² × 10⁻³, and this low value permits rapid velocity changes and short settling times in servo loops. The square mounting face measures 3.25" square, which suits machinery laid out for that bolt circle. A standard winding set is used, and drive-to-motor feedback relies on the primary resolver interface. The absence of a shaft seal reduces drag and is acceptable in clean, dry enclosures.

Holding torque during power-off is provided by a 24 V DC brake that releases automatically when the drive re-energizes the coil. Output torque is produced by magnets made of rare earth (samarium cobalt), giving high coercivity and stable flux across the motor’s operating temperature range. The active lamination stack is 3 inches long, which shortens the motor for tight installations while still supporting its intended duty cycle. Installation uses an English mounting pattern that matches threaded fasteners common in North American machinery. Housing style C presents the conventional rear conduit box used in this series.