Product Description:

The R67HENA-R2-NS-NV-00 is a servo motor produced by Pacific Scientific within the R Servomotors series. It supplies closed-loop torque and speed control for positioning tables, pick-and-place axes, and other motion loops in industrial automation. The design integrates rare-earth magnetics, resolver feedback, and a high-speed winding so it can be paired directly with modern digital drives that demand quick transient response. This combination helps the drive maintain stable position information and smooth response during repeated start-stop motion.

The motor delivers a continuous stall torque of 19.9 Nm, allowing it to hold a static load without overheating when energized at rated current. For short acceleration bursts, it rises to a peak capability of 48.9 Nm, giving headroom for overcoming inertial and friction peaks. At the rated shaft speed of 3000 rpm, the electromagnetic design balances torque output and back EMF to match common 160 Vdc bus drives. Rotor inertia is only 1.72 kg·m² × 10⁻³, supporting fast velocity changes while keeping servo stiffness high. The square mounting flange measures 5.75″ square, and this footprint follows the English mounting convention for machine plates that use inch-based dimensions. The motor housing is the standard style and does not incorporate a shaft seal, so installation should avoid fluid splash zones.

The laminated stator stack extends 7 inches along the axis, adding copper volume for sustained power output while keeping the frame compact. Torque density is increased by rare-earth samarium cobalt magnets, which resist demagnetization under high thermal loads. The windings use the high-speed option, presenting lower inductance and enabling wide-bandwidth current loops. Because the unit is supplied with no brake, mechanical holding devices must be considered for vertical loads. The frameless size-21 resolver provides primary feedback, and the absence of a secondary transducer keeps the feedback arrangement straightforward for compatible drive systems. The English mounting face matches equipment that uses inch-based mounting dimensions.