>> P.261
F6■FitTherecommendedfitsforThrustBearingsareshowninTable3.■MountingWhenmountingThrustBearings,thefollowingitemsshouldbeconsidered.1Wheninnerandouterringsarenotused,thehard-nessoftheracewaysurfacesshouldbe58〜64HRC,theeffectivehardeningdepthshouldbeadequate,andthesurfaceroughnessshouldbelessthan0.2μmRa.2Whenmountinginnerandouterringstoshaftandhousingbore,dimensionsrelatedtomountingshouldbebasedonthedimensiontables.Also,themountingsurfacesshouldbefinishedatrightanglestothecenteraxisandtheyshouldbesuf-ficientlyrigid.3Toavoidelasticdeformation,thethrustwasherASmustbeseateduniformlyonitsmatingsurface.AsmallwarpinanASwasherwillbecorrectedauto-maticallywhenanaxialloadisapplied.4ThrustRollerBearingsarecombinationsofacop-peralloycomponentandcylindricalrollers.WhenhandlingtheAZKitself,careshouldbetakentopre-ventdeformations,blemishes,etc.ThrustneedlerollerbearingsThrustrollerbearingsInnerringsOuterringsThrustwashersNTBAZKAZWSGSASh8h6h6──h8────H7──H7──TypeofbearingToleranceclassShaftHousingboreTable3RecommendedfitsFig.1MountingexamplesF1N=0.102kgf=0.2248lbs.1mm=0.03937inch
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