Bearing assembly construction
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorsYasuyosi Yasui, Mitugu Izuta, Sigeki Okaguchi
Life of this patent
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Abstract
In an axle box structure of soft metal such as aluminum alloy including a bearing bore, a sleeve member of hard metal such as iron pressedly engaged within the bearing bore, and a rolling bearing assembled within the sleeve member to support an axle shaft thereon, the sleeve member has on its outer periphery an axial knurl or serration to be embedded in the axle box structure, the knurl or serration being annularly formed with a predetermined axial length substantially at the central portion of the sleeve member such that the crest diameter of the knurl or serration is larger than the outer diameter of the sleeve member and that the root diameter of the knurl or serration is smaller than the outer diameter of the sleeve member.
Claims3
In an axle box structure of soft metal including a bearing bore, a sleeve member of hard metal engaged within said bearing bore, and a rolling bearing assembled within said sleeve member to support an axle shaft thereon,
- the improvement wherein said sleeve member has on a portion of its outer periphery an axial knurl or serration means for embedding in said axle box structure, said knurl or serration means being annularly formed in a predetermined axial length substantially at the central portion of said sleeve member wherein the crest diameter of said knurl or serration means is larger than the outer diameter of said sleeve member and the root diameter of said knurl or serration means is smaller than the outer diameter of said sleeve member.
Dependencies are inferred from the claim text.