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A large planetary gear system forming the input stage of a wind turbine power generator, has one or more of the planetary gears with gear teeth having contact surfaces from which the asperity peaks have been removed prior to run-in or installation. The resulting gear contact surfaces have an improve...

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Bibliographische Detailangaben
Hauptverfasser:	MICHAUD, MARK, SUMMERS, EDWARD
Format:	Patent
Sprache:	dan
Schlagworte:	BLASTING DRESSING OR CONDITIONING OF ABRADING SURFACES ENGINEERING ELEMENTS AND UNITS FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GRINDING HEATING LIGHTING MACHINE TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MAKING GEARS OR TOOTHED RACKS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS POLISHING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A large planetary gear system forming the input stage of a wind turbine power generator, has one or more of the planetary gears with gear teeth having contact surfaces from which the asperity peaks have been removed prior to run-in or installation. The resulting gear contact surfaces have an improved material ratio (Rmr) allowing for greater load bearing capacity and power density. Harmful metal debris caused by run-in is also prevented. The gear surfaces may be finished to a surface roughness Ra of less than 0.25 microns and may be specular in appearance.