>> P.484
K35101020501002005001000×3Sm10020304050Nmm/2p■LubricationMaintenance-freetypePILLOBALLRodEndshaveaslidingsurfacelinedwithaself-lubricatinglining.Therefore,theycanbeusedwithoutlubrication.LubricationtypePILLOBALLsarenotprovidedwithprepackedgrease.Performproperlubricationforuse.Operatingwithoutlubricationwillincreasethewearoftheslidingcontactsurfacesandcauseseizure.■OilHoleandGreaseNippleTable10showsthespecificationsofoilholeandgreasenippleontheouterringorbody.Further,lubricationnozzlemodelscompatiblewiththegreasenippleareshowninTable11.ForPILLOBALLswithoutanoilholeandgreasenip-ple,applygreasedirectlyonthesphericalsurface.Table10SpecificationsofoilholeandgreasenippleType1oilhole+oilgrooveNoneWithgreasenippleNone1oilholeWithgreasenippleNone(1)WithgreasenippleNonePBPHS(…A)d≦44<dd≦44<d≦66<dPOS(…A)PHSAPHSB・POSBPHS…EC,POS…ECSpecificationTable9Loaddirectionalfactorformaintenance-freetypePILLOBALLsb1Loaddirection10.2(1)Loaddirectionalfactorb1ConstantAlternateNote(1) Thisvalueisapplicablewhentheloadchangescompara-tivelyslowly.Whentheloadchangesrapidly,pleasecon-sultIKO,asthefactordegreasessharply.Note(1) GreaseNippleisavailableforsize4orlargerwithsup-plementalcode.[2]LifecalculationThelifeofmaintenance-freetypePILLOBALLRodEndsisobtainedfromthetotalslidingdistanceSwhichisgiveninFig.6forthecontactpressurepobtainedfromequation(3).Thetotalnumberofoscillationsandlifeinhourscanbeobtainedfromthefollowingequations.G=16.67×b1× Sf ………………………(7) VLh= G ……………………………………(8)60fwhere,G:Life(Totalnumberofoscillations)b1: Loaddirectionalfactor(RefertoTable9.)S:Totalslidingdistancem f:Numberofoscillationsperminutemin-1V:Slidingvelocitymm/s Lh:LifeinhourshFig.6Contactpressureandtotalslidingdistanceformaintenance-freetypePILLOBALLRodEndsBorediameterofinnerring dmmContactpressureTotalslidingdistanceTable11TypesandDimensionofLubricationNozzlesTypeDimensionB-5120RA-5126TA-5120RLubricationNozzleBodyofgreasegunRemarkHSP-3(YamadaCorporation)canbeusedforthem.Theabovenozzlescanbeatachedonthestandardgreasegunshownbelow.
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