Product Description:

The R22HENA-R1-NS-NV-11 is a brushless servo motor produced by Pacific Scientific for the R Servomotors series. As a servo motor, it converts drive current into precise rotary motion for position or speed control in automated machinery such as pick-and-place heads or indexing tables. The motor’s round housing simplifies integration with compact gearboxes and other space-limited drive arrangements. It is supplied without a shaft seal or brake, allowing external retention hardware to be selected to match the application. The standard housing also fits common clamp mounts and supports feedback-ready operation in compact motion systems.

A continuous stall torque of 0.6 Nm can be sustained at zero speed without overheating under steady conditions. For short bursts, the motor can reach a peak output of 1.62 Nm, which supports rapid indexing moves and temporary overload demand. The rated shaft speed is 8000 rpm, and the motor uses a 2.0" OD frame for a compact package. Rotor inertia is 0.014 kg·m²×10⁻³, so the motor can respond quickly to current changes with little stored inertia to overcome. A rare earth samarium-cobalt magnet set helps maintain magnetic flux at elevated temperatures and supports stable operation during demanding duty cycles.

The motor follows the English mounting code, and the stack length measures 2 inches, which keeps the axial profile shallow when space behind the mounting plate is limited. It uses a high-speed winding that helps reduce copper losses at elevated frequencies and supports torque at higher velocity. Primary position data comes from a frameless, transmitter-type resolver in a size 15 resolver format, which suits applications exposed to electrical noise. No secondary feedback is included, so the resolver is the main source of position information. This arrangement keeps the feedback system simple while preserving compatibility with analog resolver input circuits.