Product Description:

The R46GENA-HS-NS-NV-00 is a servo motor manufactured by Pacific Scientific within the R Servomotors series. Designed for machine tools, conveyors, and indexing equipment, it converts electrical commands from a drive into controlled rotary motion that maintains tight speed and position tolerance under dynamic load. It is intended for motion systems that need repeatable response during frequent starts, stops, and direction changes. That operating role makes it suitable for axes where the drive must maintain stable torque while following commanded position changes.

The motor delivers a continuous stall torque of 7.6 Nm, which is the torque it can hold at zero speed without overheating. During acceleration, it can reach a peak torque of 20.2 Nm, giving the drive short bursts of force to overcome static friction or rapid load changes. Its square frame measures 4.25″ square, which fits panels drilled for inch-based hardware. Rotor inertia is 0.40 kg·m² × 10⁻³, so velocity loops can settle quickly without excessive overshoot. The laminated core stack is 6 inches long, which influences the magnetic path and the torque constant used in controller calculations. Housing style and winding type are standard, so no special fins or high-fill windings change the thermal or electrical profile.

Mounting follows the English pattern, so the face threads and pilot diameter match UNC fasteners common in North American machinery. There is no brake, so the axis must rely on drive current or an external lock to hold position when power is removed. The magnetic circuit uses rare earth (samarium cobalt) material, which supplies high residual flux density while resisting demagnetization at elevated temperatures. Position feedback comes from Hall sensors, giving the controller commutation and coarse speed information without a secondary transducer. A shaft seal is omitted, so fluids should be kept away from the front bearing region to preserve service life. This arrangement is best suited to clean installations where contamination around the shaft end is controlled.