To provide a tapered roller bearing having high durability when used as a tapered roller bearing for a construction machine sprocket.SOLUTION: The tapered roller bearing having tapered rollers 4 the number of which is 40 pieces or more shows that a roller filling rate γ% is 70% or higher and lower than 89%, and a characteristic value A defined as A=(W×Dc)/(P1×P2×Z) is 2.0-8.0, where W is the axial width of a cage 5, Dc is the outer diameter of a large diameter side annular part 13 of the cage 5, P1 is the peripheral width of the small diameter side end of a pillar part 15, P2 is the peripheral width of the large diameter side end of the pillar part 15, and Z is the number of the tapered rollers 4.SELECTED DRAWING: Figure 1
【課題】建機スプロケット用円すいころ軸受として使用したときに高い耐久性を有する円すいころ軸受を提供する。【解決手段】円すいころ4の本数が40本以上である円すいころ軸受において、ころ充填率γ%が70%以上89%未満であり、保持器5の軸方向幅をW、保持器5の大径側環状部13の外径をDc、柱部15の小径側端部の周方向幅をP1、柱部15の大径側端部の周方向幅をP2、円すいころ4の本数をZとしたときに、A=(W×Dc)/(P1×P2×Z)で定義される特性値Aが2.0以上8.0以下である。【選択図】図1
TAPERED ROLLER BEARING
円すいころ軸受
2024-10-04
Patent
Electronic Resource
Japanese
Enhanced tapered roller bearing performance
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