ROLLING BEARING UNIT FOR SUPPORTING WHEEL

• Main Authors: TAKANASHI HARUMI, TANABE MASAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 08.03.2018
• Subjects: AXLES FOR WHEELS OR CASTORS; BEARINGS; BLASTING; CASTORS; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INCREASING WHEEL ADHESION; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLE WHEELS; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a structure capable of securing working accuracy of a screw hole for a push bolt formed in a rotation-side flange, and capable of preventing damage to a tool for use in the working of the screw hole.SOLUTION: A screw hole 20a, into which a push bolt is to be screwed, is formed not in a part aligned with a thin-walled part 16a with respect to circumferential direction but in a part aligned with a thick-wall part 15a, in the thick-wall parts 15a and thin-wall parts 16a, which are provided alternately with respect to the circumferential direction in a rotation-side flange 11a.SELECTED DRAWING: Figure 2 【課題】回転側フランジに形成する押しボルト用のねじ孔の加工精度を確保でき、かつ、このねじ孔を加工するのに使用する工具の損傷を防止できる構造を実現する。【解決手段】回転側フランジ１１ａに円周方向に関して交互に設けられた厚肉部１５ａと薄肉部１６ａのうち、円周方向に関して薄肉部１６ａと整合する部分ではなく、厚肉部１５ａと整合する部分に、押しボルトを螺合させるためのねじ孔２０ａを形成する。【選択図】図２