Product Description:

The F46HCNA-R2-NS-NV-00 is a brushless servo motor produced by Pacific Scientific as part of the F Servomotors series. In automated machinery, this motor serves as the primary torque source, letting motion controllers command precise velocity and position without the commutator maintenance associated with brushed designs. Brushless construction also helps reduce routine wear during normal operation. The unit ships with no secondary feedback, so the primary resolver or encoder handles all loop information.

For continuous operation, the shaft can hold 61 lb-in of torque, while short duty cycles permit peaks up to 155 lb-in. A frame width of 4.25 inches sets the physical envelope for mounting inside tight mechanical packages. Electrical performance scales linearly with current thanks to the torque constant of 5.5 lb-in/A, so paired drives can predict load response accurately. That relationship helps the amplifier match current demand to changing loads during acceleration and deceleration. The back-EMF value of 65 V/Krpm indicates the generated voltage per 1,000 rpm, which is used to size bus voltage and regeneration hardware. It is supplied without a holding brake to reduce mass and inertia. The motor has a magnet stack length of 6 and a standard motor configuration.

Total mass is 27.4 lbs, which is a consideration when integrating the NEMA mount. Environmental protection reaches IP65, meaning the housing is dust-tight and resists low-pressure water jets, but there is no shaft seal, so the coupling interface must be protected from direct washdown. The face mounting pattern follows the NEMA Face standard, allowing the motor to fit machine interfaces that use the same bolt circle. Internally, the rotor uses Ferrite magnets, which support the listed torque levels without rare-earth materials.