Product Description:

The R43G0NA-R2-NS-VS-00 servo motor is built by Pacific Scientific as part of the R Servomotors series. It is a brushless AC rotary actuator intended for closed-loop speed and position tasks in automated machinery, indexing tables, and material handling axes. The compact frame and resolver feedback integrate with digital drives to deliver repeatable motion profiles in industrial automation lines. The unit’s square frame simplifies mounting to gearheads or direct-drive couplings, while rare-earth magnets supply high torque density appropriate for continuous multi-shift production.

At a continuous stall capacity of 3.9 Nm, the motor can hold load torque indefinitely without overheating, which is useful for positioning axes that dwell for extended periods. When rapid acceleration is demanded, it reaches a peak output of 10.4 Nm, giving the drive headroom for start-stop cycles and short overloads. The mechanical power curve is centered on a rated shaft speed of 1500 RPM, aligning with common gearbox ratios and synchronous drive frequencies. Rotational responsiveness is aided by an inertia of only 0.22 kg·m² × 10⁻³, which helps the drive follow command changes with minimal lag. Installation space is controlled by a 4.25-inch square frame that fits standard NEMA mounting patterns inside compact equipment panels.

A stack length of 3 inches provides the magnetic path needed for the published torque while keeping overall motor weight moderate. Torque density is supported by rare-earth samarium cobalt magnets that maintain magnetic flux at elevated temperatures. Precise loop closure is achieved through a frameless resolver size 21, which supplies rotor angle feedback to the drive electronics. For washdown or dusty settings, a Viton shaft seal helps block fluid ingress, and the motor is supplied without a holding brake to reduce axial length.