ROLLING BALL BEARING

• Main Author: INOUE WAKANA
• Format: Patent
• Language: English; Japanese
• Published: 23.03.2017
• 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

PROBLEM TO BE SOLVED: To provide a rolling ball bearing which is excellent in a lubrication characteristic between balls and a cage guide part by a constitution using a rolling body guide-type cage, and can be used up to a high-speed rotation range.SOLUTION: A rolling ball bearing comprises an inner ring and an outer ring being bearing rings, balls being a plurality of rolling bodies interposed between the inner ring and the outer ring, and an annular cage 5 for holding the balls. A lubricant is supplied or sealed into a bearing inner space, the cage 5 has rolling-body guides being pocket parts 9 for holding the balls at a plurality of points in a circumferential direction, and the pocket parts 9 are formed into substantially-polygonal shapes whose apexes 10 are circular, and have flocking parts 6 which are formed by transplanting fibers at least at one of the apexes 10.SELECTED DRAWING: Figure 2 【課題】転動体案内形式の保持器を用いる構成において、玉と保持器案内部との潤滑特性に優れ、高速回転域まで適用可能な転がり玉軸受を提供する。【解決手段】転がり玉軸受は、軌道輪である内輪および外輪と、この内・外輪間に介在する複数の転動体である玉と、この玉を保持する円環状の保持器５とを備え、軸受内空間に潤滑剤が供給または封入され、保持器５は、転動体案内であり、円周方向複数個所に玉を保持するためのポケット部９を有し、このポケット部９は、各頂点部１０が円弧状である略多角形状であり、頂点部１０の少なくとも１つにおいて、繊維を植毛してなる植毛部６を有する。【選択図】図２