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Ⅲ-8GreasereplenishmentmethodNewgreasemustbesuppliedthroughagreasefeeddevicesuchasagreasenippleuntiloldgreaseisdischarged.Aftergreaseisreplenished,running-inisperformedandexcessgreasewillbedischargedtooutsideofthelinearmotionrollingguide.Dischargedgreasemustthenberemovedbeforestartingtheoperation.Theamountofgreaserequiredforstandardreplenishmentisabout1/3to1/2ofthefreespaceinsidethelinearmotionrollingguide.Whengreaseissuppliedfromagreasenippleforthefirsttime,therewillbegreaselostinthereplenishmentpath.Theamountlostshouldbetakenintoconsideration.Generally,immediatelyaftergreaseisreplenished,frictionalresistancetendstoincrease.Ifadditionalrunning-inisperformedfor10to20reciprocatingcyclesafterexcessgreaseisdischarged,frictionalresistancebecomessmallandstable.Forapplicationswherelowfrictionalresistanceisrequired,thereplenishmentamountofgreasemaybereduced,butitmustbekepttoanappropriatelevelsoasnottogiveabadinfluenceonthelubricationperformance.MixingofdifferenttypeofgreaseMixingdifferenttypesofgreasemayresultinchangingthepropertiesofbaseoil,soapbase,oradditivesused,and,insomecases,severelydeterioratethelubricationperformanceorcausetroubleduetochemicalchangesofadditives.Oldgreaseshouldthereforeberemovedthoroughlybeforefillingwithnewgrease.OillubricationForoillubrication,heavyloadrequireshighoilviscosityandhighvelocityrequireslowoilviscosity.Generally,forlinearmotionrollingguidesoperatingunderheavyload,lubricationoilwithaviscosityofabout68mm2/sisused.Forlinearmotionrollingguidesunderlightloadathighspeedoperation,lubricationoilwithaviscosityofabout13mm2/sisused.Lubricationpart"C-Lube"C-LubeLinearBallSplineMAGhasbuilt-inlubricationpart,"C-Lube".C-Lubeisaporousresinwithmoldingformedfineresinpowder.Itisalubricationpartimpregnatedwithalargeamountoflubricationoilinitsopenporesbycapillaryinside.Lubricationoilissupplieddirectlytoballs(steelballs),nottothesplineshaft.WhentheballshavecontactwithC-Lubebuiltintheexternalcylinder,lubricationoilissuppliedtothesurfaceoftheballs.Asthesteelballscirculate,thelubricantisdistributedtotheloadingareaalongthetrackrail.Thisresultsinadequatelubricationoilbeingproperlymaintainedintheloadingareaandlubricationperformancewilllastforalongtime.ThesurfaceofC-Lubeisalwayscoveredwiththelubricationoil.LubricationoiliscontinuouslysuppliedtothesurfaceofsteelballsbysurfacetensioninthecontactofC-Lubesurfaceandsteelballs.Table7GreasebrandsusedinlinearmotionrollingguideBrandBaseoilThickenerConsistencyRangeofoperatingtemperature(2)Usage℃AlvaniaEPGrease2[ShellLubricantsJapanK.K.]MineraloilLithium284-20～110Generalapplicationwithextreme-pressureadditiveAlvaniaGreaseS2[ShellLubricantsJapanK.K.]MineraloilLithium283-25～120GeneralapplicationMultempPSNo.2[KYODOYUSHICO.,LTD.]Syntheticoil,MineraloilLithium275-50～130GeneralapplicationLowDust-GenerationGreaseforCleanEnvironmentCG2[NIPPONTHOMPSONCO.,LTD.]SyntheticoilUrea280-40～200ForcleanenvironmentLonglifeLowDust-GenerationGreaseforCleanEnvironmentCGL[NIPPONTHOMPSONCO.,LTD.]Syntheticoil,MineraloilLithium/Calcium225-30～120ForcleanenvironmentLowslidingKlüberalfaGRY-VAC3(1)[NOKKLUEBER]SyntheticoilEthylenetetra-fluorideNo.3-20～250ForvacuumAnti-FrettingGreaseAF2[NIPPONTHOMPSONCO.,LTD.]SyntheticoilUrea285-50～170Fretting-proof6459GreaseN[ShellLubricantsJapanK.K.]MineraloilPoly-urea305-Fretting-proofNotes(1)Setreplenishmentintervalstoshort.(2)heRangesofoperatingtemperaturearequotedfromthegreasemanufacturer'scatalogedvalues,butdonotguaranteeregularuseunderhightemperatureenvironment.Remarksheckwiththechosengreasemanufacturer'scatalogbeforeuse.Forgreaseforapplicationsotherthanthoselisted,pleasecontactIKO.
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