Patent ID: 8857756

Claim:
A helicopter, comprising: a fuselage; a drive train coupled to the fuselage; a yoke coupled to the drive train; a grip coupled to the yoke; a rotor blade coupled to the grip; a bearing disposed between the drive train and the rotor blade, the bearing comprising: an elastomeric material; a housing member coupled to the elastomeric material; and an anti-rotation member coupled to the housing member opposite the elastomeric material; a bearing mount coupled to the grip and comprising a first opening configured to receive the anti-rotation member of the bearing, wherein the first opening is defined at least in part by a first surface configured to contact a corresponding surface of the anti-rotation member when the first opening of the bearing mount receives the anti-rotation member of the bearing such that the first surface prevents the anti-rotation member from completing a rotation within the first opening; and an attachment member coupled to the bearing and comprising an elongated shaft aligned along an axis that intersects the anti-rotation member and at least some of the elastomeric material; wherein the bearing mount further comprises a second opening defining a passageway through the bearing mount, and wherein the attachment member is coupled to the anti-rotation member and configured to pass through the passageway of the bearing mount when the first opening of the bearing mount receives the anti-rotation member of the bearing.