Patent ID: 9616996
Date: 2017-04-11
CPC Classifications: B64C

Claim:
1. An aircraft rotor head, comprising: a rotor hub comprising a central portion having a longitudinal axis and radial arms extending outwardly from the central portion, each radial arm including a pair of radial arm elements and a bearing supportively disposed between the pair of radial arm elements; blade retention yokes, each blade retention yoke being pivotably coupled to the bearing of a corresponding pair of radial arm elements of one of the radial arms at one end and to a corresponding blade at another end; and a lag restraint star rotatable about the central portion and axially translatable between the pair of radial arm elements of each radial arm along the central portion with respect to the longitudinal axis, the lag restraint star being disposed radially between the central portion of the rotor hub and the blade retention yokes, and coupled to each of the blade retention yokes to facilitate uniform blade lead/lag and uniform blade coning.