>> P.483
KK340.20.5151050100150SlidingvelocityVmm/sFig.4SlidingvelocityfactorforlubricationtypePILLOBALLs2Lifeofmaintenance-freetypePILLOBALLsPHS…EC・POS…EC[1]ConfirmationofpVvalueBeforeattemptingtocalculatethelife,makesurethattheoperatingconditionsarewithinthepermissiblerangebyreferringtothepVdiagraminFig.5.Whentheoperatingconditionsareoutofthepermis-siblerange,pleaseconsultIKO.ThecontactpressurepandslidingvelocityVareobtainedfromequations(3)and(4).Permissiblerange125102050100200806040206810421mm2/NpContactpressureSlidingvelocityVmms/Fig.5pVdiagramformaintenance-freetypePILLOBALLRodEndsatenAlternddirectiooaLLoaddirectionConstant8234510.50.40.30.20.10.05b3SlidingvelocityfactorEEOscillatingangleEEOscillatingangleFig.3Oscillatingangle[2]LifecalculationThelifeoflubricationtypePILLOBALLscanbecalcu-latedbythefollowingequations.60f√￣￣()2 G= 3.18b1b2b3 Cdt ×105 ……………(5)dkβ PLh= G ……………………………………(6)where, G:Life(Totalnumberofoscillations) b1:Loaddirectionalfactor(RefertoTable8.) b2:Lubricationfactor(RefertoTable8.) b3:Slidingvelocityfactor(RefertoFig.4.)Cdt: Dynamicloadcapacityconsideringtemperatureincrease,N(Refertoequation(1).) P:Equivalentradialload,N Lh:Lifeinhours,h f:Numberofoscillationsperminute,min-1(Refertoequation(2).)Table8Loaddirectionalfactorb1andlubricationfactorb2forlubricationtypePILLOBALLsLoaddirectionalfactorb1LoaddirectionConstantAlternate15Lubricationfactorb2PeriodicallubricationNone1Regular15
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