Product Description:

The R22GMNA-R1-NS-NV-03 is manufactured by Pacific Scientific as part of the R Servomotors series. It is a compact rotary drive element intended for motion axes that need repeatable positioning under closed-loop control. By integrating a rare-earth magnet set with resolver feedback, the unit translates current commands from a matched drive into accurate torque for pick-and-place, light conveying, or small packaging equipment used in automated plants.

This motor can hold a load at stall with 0.6 Nm of continuous torque and reach a transient output of 1.62 Nm for acceleration bursts. At its rated speed of 5300 rpm, it maintains stable velocity while limiting losses through its standard winding. The round frame measures 2.0" OD, allowing it to fit installations that follow NEMA-23 style footprints, and the rotor’s reflected inertia is only 0.014 kgm²×10⁻³, which supports fast response with modest drive current. A standard housing is used, but no shaft seal is fitted, so added external protection may be needed in dirty or wet locations. The unit is supplied without a holding brake, so static load retention must be provided by the drive or by a mechanical lock. No secondary feedback devices are present, which keeps the wiring simpler.

Rare-earth magnets based on samarium cobalt provide high energy density in a small stack, and the primary position device is a frameless resolver in size 15 that supports analog sine-cosine interrogation. The laminated core has a stack length of 2 inches, which balances thermal mass with the axial envelope. Hardware interfaces follow metric mounting conventions, and the factory assigns a standard winding for typical 160 V class servo drives. The standard housing style, along with the lack of a shaft seal and brake, makes the motor better suited for clean, dry environments where rapid starts and stops are needed without added holding components.