Product Description:

The R46HENA-R2-NS-VS-00 servo motor is produced by Pacific Scientific within the R Servomotors series. It converts electrical energy into controlled rotary motion for automated machinery, providing the torque source for axes that require accurate velocity and position control. The brushless construction and resolver feedback allow integration with digital drives that supervise motion in packaging cells, pick-and-place robots, and indexing tables. This arrangement supports closed-loop motion without sliding electrical contact at the commutation system, which helps maintain stable response during repeated starts, stops, and reversals.

Its continuous stall capability reaches 7.6 Nm, which is the steady load the shaft can withstand without overheating, while a momentary peak of 20.2 Nm accommodates acceleration and shock events. Rotor inertia is 0.40 kg·m² ×10⁻³, balancing quick response with mechanical stability during rapid speed changes. The frame measures 4.25" square, so the motor occupies modest space yet matches common mounting flanges. Magnetic flux is generated by rare-earth samarium cobalt, yielding high torque density and strong thermal performance. A frameless size-21 transmitter resolver supplies primary feedback for commutation and position data, and that feedback method supports accurate rotor tracking in demanding machine cycles.

The enclosure carries a Viton shaft seal that restricts dust and fluid ingress around the output shaft. A stack length of 6 inches increases winding volume, and the stator employs high-speed windings to accept elevated electrical frequencies for faster control loops. The unit follows English mounting conventions, matching inch-based pilots on gearboxes and adapter plates. It is supplied without a holding brake, so the load must be secured externally when power is removed. Secondary feedback is not included, which keeps the motor interface simpler and leaves the resolver as the primary motion feedback channel.