Product Description:

The R45HENA-R2-NS-NV-00 belongs to the R Servomotors series manufactured by Pacific Scientific. It is a brushless AC servo motor intended to provide precise speed and torque control for axes in automated machinery, pick-and-place units, and coordinated motion platforms. By converting electrical drive commands into tightly regulated mechanical output, the unit supports repeatable positioning in industrial automation cells where coordinated motion accuracy is critical.

This motor can deliver a continuous stall torque of 5.7 Nm, supplying steady force when the shaft is held motionless under rated current. For rapid accelerations and transient loads, its peak torque rises to 15.1 Nm. The motor has a 4.25-inch square frame, which fits legacy English-sized mounting patterns. A reflected inertia of 0.31 kg·m²×10⁻³ limits torsional overshoot, enabling responsive motion profiles when paired with modern drives. The windings use a high-speed design, allowing higher base speeds before field weakening is needed and broadening the usable velocity range for conveyor or spindle axes.

Magnetic flux is generated with rare-earth (samarium cobalt) magnets that maintain stable properties across a wide temperature range. Primary position information is furnished by a size 21 frameless resolver of the transmitter type, giving analog sine-cosine feedback for drives that rely on resolver signals, and no secondary sensor is provided. The laminated iron stack length is 5 inches, which contributes to the motor’s active axial magnetic path and supports the stated torque density. Mounting follows the English bolt pattern, while the housing style is standard. The motor is supplied without a holding brake and without a shaft seal, making it suitable for installations where sealing is handled by the surrounding machine enclosure.