Concept 60 Replacement Spindle Shaft - KYOSHO H6004  [KYH6004]

Replacement spindle for Concept 60

The KYOSHO H6004 spindle shaft is a precision spare part intended as a direct replacement for the Concept 60 spindle assembly. It reconnects rotor components to the transmission stack, restoring axial alignment and reducing play when a worn shaft is causing rotor tracking issues.

In service, install the shaft during scheduled maintenance or after damage: remove the rotor head and retaining hardware, inspect surrounding bearings and gear faces for wear, fit the new spindle into the original seating, confirm smooth rotation and correct endplay, then secure the fasteners and re-check blade tracking. Proper seating and bearing condition are critical for correct function.

Replacing a worn spindle shaft often removes vibration sources and helps re-establish predictable rotor behavior; after fitting, verify rotor balance and perform a cautious hover check before full-power operation. Keep spare shafts clean and lightly oiled to prevent corrosion while in storage.