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AssigneeNtn Corporation
InventorsEiji Tajima, Hiroyuki Ogura, Syougo Suzuki, Shigeaki Fukushima, Mitsuru Umekida, Akira Torii, Akira Sera, Hisashi Ohtsuki
Estimating the term…
A wheel bearing device having a unitized hub ring, double-row bearing and constant velocity universal joint with one of double-row inner raceways formed on the joint outer ring. An end portion of the joint outer ring is fitted to an outside periphery of the hub ring through serrated portions. The hub ring is plastically deformed and expanded from an inside diameter side toward an outside diameter side by pushing a steel ball into a through hole of the hub ring preventing play in the serrated portions by the diameter expansion. A surface-hardened layer is formed at least on a base portion of the wheel mounting flange.
A wheel bearing device comprising a hub ring, a double-row bearing and a constant velocity universal joint, at least the hub ring and the double-row bearing are unitized together, the hub ring and the constant velocity universal joint are fitted through torque transmission means and are joined by means for fastening in an axial direction, wherein clearance in a fit portion of the torque transmission means is prevented by a play prevention member.
A wheel bearing device comprising a hub ring, a constant velocity universal joint and a double-row bearing which are unitized together, one of double-row inner raceways of the bearing being formed on a joint outer ring of the constant velocity universal joint, wherein the joint outer ring is fitted onto the hub ring with torque transmission means being provided in between, and the hub ring and the joint outer ring are joined together by plastic deformation.
A wheel bearing device comprising a hub ring and a double-row bearing unitized with each other, wherein a pitch circle diameter of an outboard bearing of the double-row bearing is smaller than that of an inboard bearing.
A wheel bearing device comprising a hub ring and a double-row bearing unitized with each other, wherein the pitch circle diameter of outboard rolling elements of the double-row bearing is smaller than that of inboard rolling elements.
A wheel bearing device comprising a hub ring, a constant velocity universal joint and a double-row bearing which are unitized together, at least one of double-row inner raceways of the bearing and a wheel mounting flange being formed on the hub ring, and a stem portion of a joint outer ring of the constant velocity universal joint being fitted into the hub ring through torque transmission means, wherein a pilot member as a separate element having a wheel guide portion and a brake guide portion is fitted to a side-end portion of the wheel mounting flange of the hub ring, and the hub ring and the pilot member are fixed to the joint outer ring by swaging.
A wheel bearing device comprising a hub ring, a constant velocity universal joint and a double-row bearing which are unitized, at least one of inner raceways of double-row raceways of the bearing and a wheel mounting flange being formed on the hub ring, a stem portion of a joint outer ring of the constant velocity universal joint being fitted into the hub ring through torque transmission means, wherein a surface-hardened layer is formed at least on an outboard base portion of a wheel mounting flange.
Dependencies are inferred from the claim text.