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DamageRollingcontacttracesMarksoftheballsrollingintheracewaygrooveIndentationBrinellingFrettingcorrosionFlakingCreepPitchingSmearingMarksofplasticdeformationontheracewaygrooveMarksofplasticdeformationfromtheballsontheracewaygrooveWearaccompanyingoxidationduetoslightvibration(alsocalledfalseindentation)ScalingoftheracewaygrooveduetometalfatigueFitsurfaceslidingSmallholesontheracewaygrooveduetometalfatiguePartialseizingElectriccorrosionSurfacemeltingduetoconduction(electricaldischarge)Roughness(satin)TempercolorCroakingRoughnessoftheracewaygrooveandballsurface(similartotheskinofapear)DiscolorationduetohightemperatureRetainerself-excitationvibrationnoise(similartoafrogcroaking)RacewaynoiseNoiseoftheballsrollingintheracewaygrooveClearanceRadialclearanceAxialclearanceClearanceintheradialdirectionwithinthebearingClearanceintheaxialdirectionwithinthebearingInclinationangularclearanceInnerringtiltanglewiththeouterringfixedResidualclearanceRadialclearanceafterthebearingisassembledintotheshaftorhousing(Clearanceafterfit)EffectiveclearanceResidualclearancewithconsiderationoftemperatureOperationclearanceRadialclearanceduringoperationContactangleAngleformedbytheplaneverticaltothebearingcentralaxisandthelineofactionoftheforcemovingbetweentheracewayringandballsNominalcontactangleDesigncontactangle127
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