Patent ID: 9657582
Date: 2017-05-23
CPC Classifications: B64C,F01D

Claim:
1. A tail rotor assembly for a helicopter comprising a rotor hub and a rotor blade, the rotor hub comprising: a gimbal assembly that transfers rotational movement of a mast to the rotor hub and comprising two opposing pairs of elastomeric bearings that enable the rotor hub to flap relative to the mast; a plate attached to the gimbal assembly; a pitch horn/shear restraint comprising a rotatable connection to the plate; and an elastomeric centrifugal force bearing attached to the hub plate and configured to withstand centrifugal force of a rotor blade when the mast is rotated and that is configured to accommodate pitch changes of the rotor blade, wherein the rotor blade is positioned between the rotatable connection of the pitch horn/shear restraint and the elastomeric centrifugal force bearing.