Product Description:

The R22H5NA-R1-NS-NV-17 is a servo motor produced by Pacific Scientific for the R Servomotors series. This compact rotary actuator is intended to provide closed-loop torque and velocity control on light-duty axes in automated pick-and-place equipment, electronic assembly fixtures, and small conveyors. By coupling directly to a precision gearbox or load shaft, the unit supplies the motion element required by an industrial drive system that relies on real-time feedback for positional accuracy.

Its electromagnetic stack is designed for continuous operation at 0.6 Nm of stall torque, meaning the rotor can hold that load indefinitely without thermal overload. During rapid indexing, the drive may command up to 1.62 Nm, which is the stated peak limit available for short bursts. The high-speed winding enables a base velocity of 8000 rpm, so full torque is delivered within a smaller electrical frequency window. Rotor inertia is limited to 0.014 × 10⁻³ kg·m², allowing quick reversals with minimal control loop overshoot. Because the unit uses a high-speed winding set, its electrical time constant is reduced, improving current rise when the controller demands sudden acceleration. The motor is supplied without a holding brake, so the application must use a mechanical locking device if the axis needs static positioning when power is removed.

The frame has an outer diameter of 2.0 inches and a stack length of 2 inches, providing a short axial profile while still meeting thermal dissipation targets. A standard housing style, machined from aluminum, accepts customary face mounting patterns, and the rotor magnets are rare-earth (samarium cobalt) to sustain flux at high temperatures. Position data are returned through a frameless resolver, transmitter type, size 15, eliminating the need for optical encoders, and no secondary feedback channel is provided. Because there is no shaft seal, the motor should be mounted where fluid ingress is not expected.