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PrecautionforUse❶RacewayRecommendedvaluesforsurfacehardnessandroughnessofmatingracewayareshowninTable5andtherecommendedvaluefortheminimumeffectivehardeningdepthisshowninTable6.1andTable6.2.Table5SurfacehardnessandroughnessofracewayItemRecommendedvalueRemarkSurfacehardnessSurfaceroughness58～64HRC0.2μmRaorlower(0.8μmRyorlower)Whenthesurfacehardnessislow,multiplytheloadratingbyhardnessfactor(1).Whereaccuracystandardislow,around0.8μmRa(3.2μmRy)isalsoallowed.Note(1)Forhardnessfactor,refertoFig.3inpageⅢ-5.Table6.1Minimumeffectivehardeningdepthofraceway(RWandRWB)unit:mmIdentificationnumberRecommendedvalueforminimumeffectivehardeningdepthRW26RW30RW40RW50RW70RW95RWB14RWB16RWB24RWB32RWB48RWB640.81.01.52.02.53.0Table6.2Minimumeffectivehardeningdepthofraceway(SRandGSN)unit:mmIdentificationnumberRecommendedvalueforminimumeffectivehardeningdepthSR15SR20SR25SR32SR40SR50GSN15GSN20GSN25GSN32GSN40GSN500.81.01.52.0❷AccuracyofmountingsurfaceForaccuracyofmountingsurface,valuesinTable7.1andTable7.2arerecommended.Table7.1Accuracyofmountingsurface(RWandRWB)ItemRecommendedvalueTable7.2Accuracyofmountingsurface(SRandGSN)ItemRecommendedvaluePermissibletiltReferencemountingsurface0.02/100orlowerPermissibletiltReferencemountingsurface0.015/100orlowerMotiondirectionReferenceline0.05/100orlowerReferencesurface❸GroovemachiningonSRandGSNmountingsurfaceWhenmountingSRandGSNtothegroove-machinedmountingsurface,thegroovedepthEshouldbedeeperthantheheightfromthebottomsurfaceofthewaytothebottomoftheSRandGSNtoprovideclearanceforoilpool.(SeeFig.2.)Otherthantheabove,groovewidthWcorrespondingtothewidthW1forSRshouldbeaswideasclearancefitandtherelationbetweentheclearanceandthegroovepositiononthereferencesurfacesidemustbeconsidered.EPermissibletiltReferencemountingsurface0.02/100orlowerW1WPermissibletiltReferencemountingsurface0.015/100orlower2.giFShapeofgrooveonthemountingsurface❹OperatingtemperatureThemaximumoperatingis120˚Candtemperatureupto100˚Cisallowedforcontinuousoperation.Whenthetemperatureexceeds100˚C,contactIKO.temperatureReferenceline0.05/100orlowerReferencesurfaceMotiondirectionⅡ-199
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