Product Description:

The F46HENA-R2-NS-NV-00 is a brushless servo motor manufactured by Pacific Scientific within the F Servomotors series. It is intended for positioning and speed-control tasks in industrial automation, where closed-loop drives synchronize axes or regulate material flow on assembly lines and packaging equipment. The motor’s electromagnetic design delivers repeatable torque, and its standard mechanical configuration aligns with common mounting patterns used in multi-axis machines.

Performance is anchored by a continuous stall capability of 61 lb-in, meaning the rotor can hold that load indefinitely without overheating. When rapid acceleration is required, peak torque rises to 155 lb-in, giving short-term force for indexing or rapid starts. The torque constant of 5.5 lb-in/A links drive current to output torque, simplifying current-loop tuning, while the voltage constant of 65 V/Krpm indicates the back-EMF level that the amplifier must overcome at speed. A frame width of 4.25 inches helps the motor fit into compact machine layouts, and the six-layer magnet stack increases flux density without lengthening the housing. No secondary feedback is provided, so the system relies on the primary resolver or encoder used by the drive. The motor has no holding brake, so any static load must be secured by drive torque or by external restraints.

The motor weighs 27.4 lbs, a value that affects support structure sizing and inertia matching. An IP65 enclosure keeps dust and low-pressure water jets away from the internal windings, yet there is no shaft seal, so the coupling area should be protected from coolant splash. The permanent magnets are made of Ferrite, which offers stable magnetic performance across typical operating conditions. The English mounting shaft standard supports use with imperial hardware, and the shaft area should remain shielded where direct liquid exposure is possible.