Product Description:

The F43HENA-R2-NS-NV-00 is a brushless servo motor in the F Servomotors series produced by Pacific Scientific. Designed as a rotary axis drive for industrial automation, it converts three-phase command current from a matched drive into regulated mechanical torque. The motor uses resolver feedback only, with no secondary transducer, to close the position and velocity loops required by packaging lines, pick-and-place heads, and indexing tables. That arrangement keeps the feedback package simple while still supporting stable closed-loop control during repeated start-stop cycles. It is intended for machines that need accurate rotary motion rather than standalone spindle duty.

Its continuous stall capability reaches 32 lb-in, which is the maximum torque the shaft can hold indefinitely at standstill without overheating. Electromagnetic coupling efficiency is represented by a torque constant of 5.4 lb-in/A, a ratio that indicates how much current is required to produce torque. The generated back electromotive force equals 64 V/Krpm, so a speed of 1 krpm induces that voltage across each phase and sets the required bus voltage margin. For transient moves, the rotor can deliver up to 81 lb-in of peak torque for short periods. This short-term overload capacity supports rapid indexing and acceleration without changing the continuous-duty rating. An enclosure rating of IP65 helps keep out dust and direct water spray, allowing installation on machine frames without a separate protective cabinet.

The motor has a flange width of 4.25 inches and weighs 16.6 pounds, which helps it fit English-pattern mounting arrangements and lighter gantry structures. A magnet stack length code of 3 uses Ferrite magnets to support the motor's torque output with a standard magnetic design. Because the motor has no shaft seal, the shaft opening should be kept away from process fluids when washdown protection is needed. The overall housing remains sealed, but the shaft area does not include a separate sealing element. The motor follows the English shaft standard and matches common gear reducers and couplings used on North American machinery.