Product Description:

Pacific Scientific's R22HDNA-R1-NS-NV-01 belongs to the R Servomotors series and serves as a compact brushless actuator for automated pick-and-place heads, small indexing tables, and other high-speed axes. By converting commanded current into controlled rotary motion, it gives a direct means of positioning loads at repeatable velocities while maintaining tight feedback loops with compatible drive amplifiers. Its brushless design supports responsive motion control in compact machinery where low maintenance and accurate speed regulation are important. This helps the axis remain stable during frequent start-stop cycles.

At the core of its performance envelope, the motor can sustain 0.6 Nm of continuous stall torque without overheating, while short-duty surges may reach 1.62 Nm. High rotor responsiveness is supported by an inertia of only 0.014 kg·m² × 10⁻³, so speed changes occur quickly with limited drive current. The stator is rated for a maximum speed of 8000 rpm, and the High Speed winding code indicates the copper fill and insulation used for that operating range. The housing uses the standard style for the series. The unit is supplied without a holding brake and without a shaft seal, which reduces drag and overall length. No secondary feedback device is included, so the drive processes a single position channel.

For mechanical integration, the motor body fits a 2.0 in. outer diameter frame that clamps into circular mounts rather than square flanges. Axial depth is kept short by a 2-inch stack length, which helps in installations where space is limited. Rotor magnets are made from rare-earth samarium cobalt, supplying high energy density and thermal stability at elevated speeds. Position information is delivered by a frameless resolver size 15, a transmitter-type sensor that tolerates vibration better than optical encoders. The resolver also avoids the light-source and disk elements used in encoder feedback systems.