TAPERED ROLLER BEARING
To provide a tapered roller bearing that has excellent seizure resistance, as well as a long life and high durability.SOLUTION: In a tapered roller bearing, at least any one of an outer ring 11, an inner ring 13, and a plurality of tapered rollers 12 includes a nitrogen-enriched layer 11B, 12B, 13B....
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Format | Patent |
Language | English Japanese |
Published |
10.10.2019
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Abstract | To provide a tapered roller bearing that has excellent seizure resistance, as well as a long life and high durability.SOLUTION: In a tapered roller bearing, at least any one of an outer ring 11, an inner ring 13, and a plurality of tapered rollers 12 includes a nitrogen-enriched layer 11B, 12B, 13B. An oil-holding recess 14A is formed in a large annular part 107 of a cage 14. When a set radius of curvature of a roller large end face 16 of the tapered roller 12 is R, and a distance from an apex of a cone angle of the tapered roller 12 to a large collar face 18 of the inner ring 13 is R, a ratio R/Rof the set radius of curvature R to the distance Ris 0.75 or greater and 0.87 of less. When an actual radius of curvature of the roller large end face 16 of the tapered roller 12 after grinding is R, a ratio R/R of the actual radius of curvature Rto the set radius of curvature R is 0.5 or greater.SELECTED DRAWING: Figure 2
【課題】耐焼付き性に優れるとともに、長寿命かつ高い耐久性を有する円錐ころ軸受を提供する。【解決手段】円錐ころ軸受において、外輪11、内輪13および複数の円錐ころ12のうちの少なくともいずれか1つは窒素富化層11B、12B、13Bを含む。保持器14の大環状部107には保油穴14Aが形成される。円錐ころ12の大端面16の設定曲率半径をR、円錐ころ12の円錐角の頂点である点から内輪13の大鍔面18までの距離をRBASEとしたとき、設定曲率半径Rと距離RBASEの比率R/RBASEの値を0.75以上0.87以下とする。円錐ころ12の大端面16の研削加工後の実曲率半径をRprocessとしたとき、実曲率半径Rprocessと設定曲率半径Rとの比率Rprocess/Rが0.5以上である。【選択図】図2 |
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AbstractList | To provide a tapered roller bearing that has excellent seizure resistance, as well as a long life and high durability.SOLUTION: In a tapered roller bearing, at least any one of an outer ring 11, an inner ring 13, and a plurality of tapered rollers 12 includes a nitrogen-enriched layer 11B, 12B, 13B. An oil-holding recess 14A is formed in a large annular part 107 of a cage 14. When a set radius of curvature of a roller large end face 16 of the tapered roller 12 is R, and a distance from an apex of a cone angle of the tapered roller 12 to a large collar face 18 of the inner ring 13 is R, a ratio R/Rof the set radius of curvature R to the distance Ris 0.75 or greater and 0.87 of less. When an actual radius of curvature of the roller large end face 16 of the tapered roller 12 after grinding is R, a ratio R/R of the actual radius of curvature Rto the set radius of curvature R is 0.5 or greater.SELECTED DRAWING: Figure 2
【課題】耐焼付き性に優れるとともに、長寿命かつ高い耐久性を有する円錐ころ軸受を提供する。【解決手段】円錐ころ軸受において、外輪11、内輪13および複数の円錐ころ12のうちの少なくともいずれか1つは窒素富化層11B、12B、13Bを含む。保持器14の大環状部107には保油穴14Aが形成される。円錐ころ12の大端面16の設定曲率半径をR、円錐ころ12の円錐角の頂点である点から内輪13の大鍔面18までの距離をRBASEとしたとき、設定曲率半径Rと距離RBASEの比率R/RBASEの値を0.75以上0.87以下とする。円錐ころ12の大端面16の研削加工後の実曲率半径をRprocessとしたとき、実曲率半径Rprocessと設定曲率半径Rとの比率Rprocess/Rが0.5以上である。【選択図】図2 |
Author | KAWAI TAKASHI ISHIKAWA TAKANORI MIYAIRI SUSUMU FUJIKAKE YASUHITO |
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Snippet | To provide a tapered roller bearing that has excellent seizure resistance, as well as a long life and high durability.SOLUTION: In a tapered roller bearing, at... |
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SubjectTerms | BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS |
Title | TAPERED ROLLER BEARING |
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