SKF密封件手册6234-Maximizing bearing

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1、MaximizingbearingperformanceRadialshaftsealsHMS5andHMSA10•Longerservicelife•Improvedsealingperformance•ExcellentoilcompatibilityInstallationexamplepoundresultsinthatthesealwillrapidlypumpbacktheoil.Table1anddiagram1showthedifferencesbetweentheformerlyusedstandardmaterialandthenewcompou

2、ndforHMS5RGandHMSA10RGwhenitcomestosecurepropersealingandalongservicelife.ThecompleterangeofHMS5andHMSA10sealsisalsoavailableonrequestinafluororubbercompoundwiththegarterspringinstainlesssteel.ThiscompoundhasthedesignationsuffixVandisusedinapplicationswithtemperaturesbeyondthelimitsofn

3、itrilerubber.ApplicationsandoperatingRadialshaftsealsconditionsSeriesHMS5(†fig.1)andHMSA10HMS5andHMSA10(†fig.2)aredesignedforoptimumuseinapplicationslubricatedwithoilorgreaseintemperaturesrangingfrom–40to+100°C(–40to212°F),shorttermupto120°C(248°F).TheseriesarealsoappropriateforMainfea

4、turesretentioninthebore.Italsopreventsspringsealinglubricantswithinawiderangeofbackatassembly.viscosities.ThenewmetriclineofrubberoutsidediamTheauxiliarylipoftypeHMSA10isnoneterradialshaftseals,HMS5andHMSA10,iscontacting,whichmeansthatthesealtypeSurfacespeed:designedinaccordancewithISO

5、6194andnormallycanbeusedatthesamespeedsasupto14m/s(2755ft./min.)DIN3760foruseinawiderangeofindustrialthesingleliptypeHMS5,withoutsignificantlyOperatingpressure:applications.TheavailablesizerangeofHMS5increasedtorqueandunderliptemperature.max0,03MPa(5psi)andHMSA10includesafullcoverageof

6、theISO6194andDIN3760dimensionsuptoThesevaluesarethemaximumvaluefor250mmshaftsizes.MainfeaturesareMaterialeachserviceconditionandshouldnotoccurtogether.Considerationmustbetakentohow•NewoptimizedsealmaterialMetalinsert:theserviceconditionsaffecteachother.•SpringloadedsealinglipMildsteel•

7、BalancedsealinglipandflexsectionSpring:•BeadedoutsidediameterSpringsteelMachiningdirections•Auxiliarylip(typeHMSA10only)Sealinglipsandoutsidediameter:RecommendationsaccordingAcrylonitrilebutadienerubber,hardness75°ShoreA,materialcodeSKFNBR3243.toISO6194standardDesignThecompoundhasthe