>> P.484
[2]LifecalculationtheforfrominFig.6isobtainedisgiventypePILLOBALLRodtotalslidingdistanceSthecontactpressurepThelifeofmaintenance-freeEndswhichobtainedfromequation(3).Thetotalnumberofoscillationsandlifeinhourscanbeobtainedfromthefollowingequations.G=16.67×b1× Sf ………………………(7) VLh= G ……………………………………(8)where,G:Life(Totalnumberofoscillations)b1: Loaddirectionalfactor(Refer60ftoTable9.)S:Totalslidingdistancem f:Numberofoscillationsperminutemin-1V:Slidingvelocitymm/s Lh:LifeinhourshTable9Loaddirectionalfactorformaintenance-freetypePILLOBALLsb1LoaddirectionConstantAlternateLoaddirectionalfactorb110.2(1)Note(1) Thisvalueisapplicablewhentheloadchangescompara-tivelyslowly.Whentheloadchangesrapidly,pleasecon-sultIKO,asthefactordegreasessharply.■OilHoleandGreaseNipplethespecificationsofoilholeandTable10showsgreasenippleontheouterringorbody.Further,lubricationnozzlemodelscompatiblewiththegreasenippleareshowninTable11.ForPILLOBALLswithoutanoilholeandgreasenip-ple,applygreasedirectlyonthesphericalsurface.Table10SpecificationsofoilholeandgreasenippleTypeBorediameterofinnerring dmmPBPHS(…A)d≦44<dd≦44<d≦66<dPHSB・POSBPOS(…A)PHSAPHS…EC,POS…ECSpecification1oilhole+oilgrooveNoneWithgreasenippleNone1oilholeWithgreasenippleNone(1)WithgreasenippleNoneNote(1) GreaseNippleisavailableforsize4orlargerwithsup-plementalcode.Table11TypesandDimensionofLubricationNozzlesTypeDimensionA-5126T5020Totalslidingdistance1005001000×310200SmA-5120RFig.6Contactpressureandtotalslidingdistanceformaintenance-freetypePILLOBALLRodEnds■LubricationB-5120RMaintenance-freetypePILLOBALLRodEndshaveaslidingsurfacelining.linedwithaself-lubricatingTherefore,theycanbeusedwithoutlubrication.Lubricationprepackedgrease.use.Operatingwithoutwearofseizure.typePILLOBALLsarenotprovidedwithforthetheslidingcontactsurfacesandcauselubricationincreasePerformproperlubricationwillRemarkHSP-3(YamadaCorporation)canbeusedforthem.Theabovenozzlescanbeatachedongreasegunshownbelow.thestandardBodyofgreasegunLubricationNozzleK355040302010010mm/N2pContactpressure
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