Product Description:

The R46HENA-R2-NS-NV-00 is an AC servo motor built by Pacific Scientific and cataloged within the R Servomotors series. As a rotary actuator, it drives axes that require accurate speed and position control inside automated cells, pick-and-place stations, and packaging equipment. By linking to a digital drive, the unit converts commanded current into mechanical shaft motion so closed-loop regulation of torque and velocity can be maintained across a broad operating range. Its operating profile suits repeated indexing, controlled acceleration, and precise positioning where stable response is needed during frequent starts and stops.

Continuous stall torque of 7.6 Nm is the load the motor can hold indefinitely without overheating, which suits static or low-speed operation. When rapid acceleration is demanded, the drive can deliver a peak output of 20.2 Nm for short intervals, giving machinery added torque to overcome load inertia. The rotor’s mass moment of 0.40 kg·m²×10⁻³ supports quick speed changes and responsive motion profiles. A 4.25-inch square frame matches standard flanges for straightforward installation, while the High Speed winding helps the motor accept higher electrical frequency with reduced commutation loss.

Performance is further supported by rare earth samarium cobalt magnets that sustain high flux density at elevated temperatures. The magnetic stack measures 6 inches in length, increasing active iron within the same frame size, and an English face-mount pattern supports integration with legacy equipment. Primary feedback is provided by a frameless resolver size 21, supplying rotor angle data to the drive without external sensors and supporting consistent commutation during low-speed operation or repeated reversals. The motor is shipped without a holding brake and with no shaft seal, so external measures are needed for load retention and contamination control. Secondary feedback is not included, which keeps the feedback arrangement simpler and reduces cable complexity.