Patent ID: 6994651

Claim:
An epicyclic gear system comprising: a sun gear located along a central axis; a ring gear located around the sun gear and sharing the central axis with the sun gear; at least one planet gear located between and engaged with the sun and ring gears for rotation about an offset axis, the planet gear having two raceways that are tapered and presented toward the offset axis, the raceways being oblique to the axis and tapered downwardly toward each other so that they are closest at their small ends; a carrier coupled to the planet gear and including a carrier flange located beyond one end of the planet gear, the carrier also including a carrier pin that extends from the carrier flange, along the offset axis, through the planet gear and has a shank at which it is secured to the carrier flange, an intermediate segment extended from the shank, and a head attached to the intermediate segment and projecting radially beyond the intermediate segment, whereby the pin is cantilevered from the carrier flange; an inner race attached to the head of the pin and extended back over, yet is spaced from, the intermediate segment of the pin, so that the inner race is cantilevered from the pin, the inner race being within the planet gear and including a race sleeve that fits over and is fastened to the head of the pin, the race sleeve being provided with two raceways that are tapered and oblique to the offset axis and are presented away from the offset axis and toward the raceway on the planet gear, one of the inner raceways being located within and inclined in the same direction as one of the outer raceways, the other of the inner raceways being located within and inclined in the same direction as the other of the outer raceways so that the inner raceways are closest at their small ends, the race sleeve further having a thrust rib at its one end where the rib is located at the large end of one of the inner raceways, the inner race also including an initially separate rib ring which is located at the opposite end of the race sleeve and has a thrust rib located at the large end of the other inner raceway; and tapered rollers organized in two rows between and contacting the outer raceways of the planet gear and the inner raceways of the inner race.