Patent ID: 8360727

Claim:
A yoke and bearing fitting assembly for a multi-blade aircraft rotor, comprising: a yoke having arms extending generally radially from a central portion of the yoke, the arms each having an upper surface and a lower surface an aperture being formed in each arm and extending between the upper surface and the lower surface, the aperture having an inboard and an outboard end; and a bearing fitting comprising a body configured for insertion into the aperture of the yoke, such that the bearing fitting extends within the aperture from the inboard end to the outboard end, the bearing fitting having two rims protruding from a periphery of the body, the rim at the inboard end being discontinuous from the rim at the outboard end of the aperture, the bearing fitting also having a bearing mount adapted for mounting a pitch-change bearing assembly to the yoke; wherein each rim abuts one of the surfaces of the associated yoke arm when the bearing fitting is installed within the aperture, so as to create clamping forces between the rims and the arm; and wherein the bearing fitting is adapted for transmitting forces from the pitch bearing assembly into the yoke.