BEARING RING AND CONICAL ROLLER BEARING

• Main Authors: WAKIZAKA TAKASHI, HAYASHI YASUYOSHI, TAKENOUCHI SAHOKO
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2023
• Subjects: 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

To provide a bearing ring capable of improving roundness on a raceway surface.SOLUTION: A bearing ring comprises an inner diameter surface and an outer diameter surface extending in a circumferential direction, which is a direction along a circumference centered on a central axis of the bearing ring. One of the inner diameter surface and the outer diameter surface has a raceway surface. A value obtained by dividing an outer diameter of the bearing ring by an inner diameter of the bearing ring is 1.1 or less. A value obtained by dividing a maximum thickness of the bearing ring in an axial direction, which is a direction along the central axis, by a minimum thickness of the bearing ring in the axial direction is 2.0 or more. The difference between a maximum value of a diameter of the raceway surface and a minimum value of the diameter of the raceway surface is more than 1 time and 2 times or less an upper limit of JIS 0 class. An amount of uneven thickness of the bearing ring is not more than 2×10-4 times the outer diameter of the bearing ring.SELECTED DRAWING: Figure 1 【課題】軌道面における真円度を改善することが可能な軌道輪を提供する。【解決手段】軌道輪は、軌道輪の中心軸を中心とする円周に沿う方向である周方向に延在している内径面及び外径面を備える。内径面及び外径面の一方は、軌道面を有する。軌道輪の外径を軌道輪の内径で除した値は、１．１以下である。中心軸に沿う方向である軸方向における軌道輪の肉厚の最大値を軸方向における軌道輪の肉厚の最小値で除した値は、２．０以上である。軌道面の直径の最大値と軌道面の直径の最小値との差はＪＩＳ０級の上限値の１倍超２倍以下である。軌道輪の偏肉量は、軌道輪の外径の２×１０－４倍以下である。【選択図】図１