HOLDER AND CYLINDRICAL ROLLER BEARING
To provide a holder capable of preventing concentrated wear of a part of the holder facing the rolling surface and side surface of a cylindrical roller, during skewing.SOLUTION: A column part of a holder has a first opposite surface that is a side surface facing a pocket and faces a rolling surface...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a holder capable of preventing concentrated wear of a part of the holder facing the rolling surface and side surface of a cylindrical roller, during skewing.SOLUTION: A column part of a holder has a first opposite surface that is a side surface facing a pocket and faces a rolling surface of a cylindrical roller. An annular part has a second opposite surface that is a side surface facing the pocket and faces a side surface of the cylindrical roller. A relief part has an R surface machined into an arc around a virtual point, a first inclined surface extending on a tangent to the R surface and extending from the R surface toward the first opposite surface, and a second inclined surface extending on the tangent to the R surface and extending from the R surface toward the second opposite surface.SELECTED DRAWING: Figure 3
【課題】スキューの際、円筒ころの転動面及び側面と対向する保持器の一部が集中して摩耗することを防止できる保持器を提供する。【解決手段】本開示の保持器の柱部は、ポケットを向く側面であり、円筒ころの転動面と対向する第1対向面を有する。環状部は、ポケットを向く側面であり、円筒ころの側面と対向する第2対向面を有する。逃げ部は、仮想点を中心に円弧状に加工されたR面と、R面に対する接線上を延在し、R面から第1対向面に向かって延びる第1傾斜面と、R面に対する接線上を延在し、R面から第2対向面に向かって延びる第2傾斜面と、を有する。【選択図】図3 |
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