Method for producing erosion-resistant hub bearing unit

A method of manufacturing a hub bearing unit includes providing a bearing ring having at least one raceway surface, preferably a bearing outer ring, preferably formed from steel having a carbon content of between about 0.55 wt% and 0.60 wt%. The bearing ring is carbonitrided in a furnace having a cl...

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Bibliographische Detailangaben
Hauptverfasser:	RYBSKI DAVID CHRISTOPHER, JUAREZ FERNANDO, MOUSSEAU MICHEL
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BEARINGS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL 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 HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method of manufacturing a hub bearing unit includes providing a bearing ring having at least one raceway surface, preferably a bearing outer ring, preferably formed from steel having a carbon content of between about 0.55 wt% and 0.60 wt%. The bearing ring is carbonitrided in a furnace having a closed atmosphere containing ammonia gas. The bearing ring is then tempered by heating the bearing ring to at least 500 degrees Celsius (500 DEG C). Subsequently, at least one raceway surface of the bearing ring is subjected to induction hardening, preferably by means of a dedicated inductor coil. And finally, the raceway surface of the bearing ring is machined to the expected final size and surface smoothness. 一种制造轮毂轴承单元的方法包括：提供具有至少一个滚道表面的轴承圈，所述轴承圈优选是轴承外圈，所述轴承圈优选由碳含量在大约0.55重量％至0.60重量％之间的钢形成。在具有包含氨气的封闭气氛的炉内对所述轴承圈进行碳氮共渗。然后，通过将所述轴承圈加热到至少500摄氏度(500℃)来对所述轴承圈进行回火。接着，对所述轴承圈的至少一个滚道表面进行感应硬化，优选通过专用的感应器线圈进行感应硬化。最后，将所述轴承圈的滚道表面机加工至期望的最终尺寸和表面光洁度。