Product Description:

The R22HMNA-R1-NS-NV-01 is a Pacific Scientific servomotor in the R Servomotors series. As a compact rotary actuator, it converts drive current from a matched servo amplifier into precise mechanical motion for indexing tables, electronic gearing, and small pick-and-place axes on automated equipment. This motor is intended for high-speed industrial automation where tight velocity control and rapid reversal are required.

This model develops a continuous stall torque of 0.6 Nm, so it can hold that load indefinitely without exceeding rated temperature when the shaft is locked. During transient moves, it can supply up to 1.62 Nm, allowing acceleration of light inertial loads. A rated speed of 8000 rpm keeps cycle times short during fast point-to-point travel. Rotor inertia is 0.014 kg·m² × 10⁻³, so current changes from the drive translate quickly into speed changes and help reduce following error. The flange uses a metric mounting pattern for compatibility with ISO-based gearheads, couplings, and machine frames. A size 15 frameless resolver supplies primary feedback for position and velocity, and there is no secondary transducer. The windings are arranged for high-speed operation.

The motor has a housing diameter of 2.0 in OD, which helps it fit into confined spaces or multi-axis clusters. Its stack length is 2 in, which keeps overall mass low and reduces overhang when the unit is cantilever mounted. Torque is produced by rare earth samarium cobalt magnets that provide high flux density with good resistance to demagnetization at elevated temperatures. The motor is supplied with no holding brake, so any static locking must be provided externally when the application requires it. The housing uses a standard cylindrical form and comes without a shaft seal, making it better suited to dry-area installations.