ROLLING BEARING USED FOR ROTARY SEAT AND MANUFACTURING METHOD FOR RACEWAY OF ROLLING BODY

PROBLEM TO BE SOLVED: To provide a rolling bearing used for a rotary seat and a manufacturing method for a raceway of a rolling body in which a soft zone on a raceway causing fatigue flaking does not remain even though a high frequency quenching is applied to the raceway of a raceway ring in the rol...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MATSUSHITA TSUGIO, SEKIMOTO HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a rolling bearing used for a rotary seat and a manufacturing method for a raceway of a rolling body in which a soft zone on a raceway causing fatigue flaking does not remain even though a high frequency quenching is applied to the raceway of a raceway ring in the rolling bearing used for the rotary seat. SOLUTION: Upon heating the entire periphery of a raceway surface 3 by means of a high frequency coil 41 for an outer ring at the same time, the soft zone applied no heat treatment is not left on the raceway surface 3, and wear on the raceway is prevented by sufficiently standing for repeated passages of balls. Upon smoothly carrying out revolution of the balls around the raceway of the raceway ring, generation of noises caused by revolution and spinning of the balls can be prevented.