Helicopter rotor blade support holder - is in form of sub-assembly combining rigid links, radial and axial-radial elastomeric bearings

摘要

The rotor is designed basically as in 2827320, each blade being connected to the hub via a link fitting between the blade-holding arms, forked at the outer end. The link inner end is a pin held with restricted rotational freedom by a radial elastomeric bearing. A second, radial-axial, elastomeric bearing in the root of the fork transfers the centrifugal load from the blade to the hub. The forked link (70) with its pin (70.1) and the elastomeric bearings (71, 72) are integrated into one sub-assembly by bonding one elastomeric layer to the corresp. fork surface.