>> P.481
K32■SelectionofPILLOBALLLoadcapacitiesofPILLOBALLsaredeterminedbasedontheallowablecontactpressureonslidingsurfacesandthestrengthofbodyforeachtype.Thus,asuitabletypeandsizeshouldbeselectedbasedonthedynamicloadcapacityCdandstaticloadcapacityCsshowninthedimensiontables.■AccuracyTheaccuracyofPILLOBALLsisshowninTables2and3.Themaximumradialinternalclearanceoftheinserttypeis0.035mm.■FitRecommendedfitsforPILLOBALLsareshowninTable4.Loadcapacity1DynamicloadcapacityThedynamicloadcapacityCdisobtainedonthebasisofthecontactpressureontheslidingsurface.Thedynamicloadcapacityisusedforcalculatingthelife.Thedynamicloadcapacityconsideringtemperatureincreaseisobtainedfromthefollowingequationusingthetemperaturefactor,whichisacorrectionfactorfortheeffectofPILLOBALLtemperature.Cdt=ftCd……………………………………(1)where, Cdt: Dynamicloadcapacityconsideringtemperatureincrease,N ft:Temperaturefactor(RefertoTable5.) Cd: Dynamicloadcapacity,N(Refertothedimensiontables.)unit:mmTable2ToleranceTypeDimensionDimensionsymbolTolerancePBBoredia.ofinnerringOutsidedia.ofouterringWidthofinnerringWidthofouterringBoredia.ofinnerringBoredia.ofinnerringWidthofinnerringWidthofinnerringBoredia.ofinnerringWidthofinnerringdDH7h60-0.1±0.1H7+0.038-0.0130-0.1270-0.1+0.063-0.012SeeTable3.BCddB1BdBPHS(…A)POS(…A)PHS…ECPOS…ECPHSBPOSBPHSAunit:mmTable3ToleranceofwidthBofinnerringofPHSAtypedNominalboredia.ofinnerringOverIncl.HighLow∆BsDeviationofasingleinnerringwidth-1420142022000-0.2-0.3-0.4Table4RecommendedfitsConditionToleranceclassShaftHousingbore(1)NormaloperationDirectionallyindeterminateloadingh7n6,p6H7N7Note(1) ThisisapplicabletoPILLOBALLSphericalBushings,Inserttype.2StaticloadcapacityhestaticloadcapacityCsisthemaximumstaticloadthatcanbeappliedonthePILLOBALLwithoutbreak-ingtheinnerorouterringofthePILLOBALLSphericalBushing(ortheinnerringorbodyofthePILLOBALLRodEnd),andwithoutcausingseverepermanentdeformationthatwillmakethePILLOBALLunusable.Table5TemperaturefactorftTypePBPHS(…A),POS(…A)PHSB,POSBPHS…ECPOS…EC111110.910.7510.550.7-Temperature℃-30+80+80+90+ 90+100+100+120+120+150+150+180Fig.1ShapesofgreasenippleK
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