>> P.289
LubricationLithium-soapbasegreasewithextreme-pressureadditive(AlvaniaEPGrease2[ShellLubricantsJapanK.K.])ispre-packedinLinearWayModuleseries.ThoughgreasenipplesarenotappendedtoLinearWayModuleseries,oilholesareprovidedtoslidemembersothatthegreaseorlubricationoilsuppliedfrommachines/devicesisdirectlyguidedtotherollingelementsrecirculationroute.Lubricationiseasilyconductedbyprovidingthesupplyrouteinthemachines/devicesasshowninFig.3.DustProtection3.giFExampleoflubricationmethodTheslidemembersofLinearWayModuleseriesareequippedwithendsealsasstandardfordustprotection.However,iflargeamountofcontaminantordustarefloating,oriflargeparticlesofforeignsubstancessuchaschipsorsandmayadheretothetrackrail,itisrecommendedtocoverthewholeunitwithbellowsortelescopetypeshield,etc.PrecautionforUse❶Mountingsurface,referencemountingsurfaceandtypicalmountingstructureWhenmountingtheLinearWayModuleseries,properlyalignthereferencemountingsurfacesBandDofthetrackrailandslidememberwiththereferencemountingsurfaceofthetableandbedandfixthem.(SeeFig.4)ThereferencemountingsurfacesBandDandmountingsurfacesAandCarepreciselyground.Machiningthemountingsurfaceofthetableandbed,suchasmachineordevice,tohighaccuracyandmountingthemproperlywillensurestablelinearmotionwithhighaccuracy.DCAPreloadamountvariesdependingonoperationalconditionsofyourmachineanddevice.However,asexcessivepreloadmayleadtoshortlifeanddamageontheraceway,itistypicallyidealtoadjusttozeroclearanceorslightpreloadstate.❸ShoulderheightandcornerradiusofthereferencemountingsurfaceFortheoppositecornerofthematingreferencemounting,itisrecommendedtohaverelievedfilletasinFig.6.RecommendedvaluefortheshoulderheightandcornerradiusonthematingsideisindicatedinTable7.1,Table7.2andTable7.3.indicated4.giFReferencemountingsurfaceandtypicalmountingstructureB❷FixingtheslidememberTypicalmountingstructureofLinearWayModuleseriesisshowninFig.5.Asaconvenientmeanstoeliminateplayortogivepreloadinlinearmotionrollingmechanism,preloadadjustingscrewsareoftenused.Setthepreloadadjustingscrewsatthepositionsoffixingboltsofslidememberandinthemiddleoftheheightofslidemember,andthenpresstheslidememberbytighteningthescrew.FormountingtheslidememberofLinearWayModuleLWLM,itisrecommendedtofixtheslidememberfromthetableside,becausetheallowanceforthepreloadadjustmentintheboltholeofslidememberissmall.Inthiscase,theboltholeandthecounterboreinthetableshouldbemadelargertogivetheadjustmentallowance.DCADCPreloadadjustingscrewABB5.giFMountingbypreloadadjustingscrewsⅡ-2396.giFCornerofthematingreferencemounting❹TighteningtorqueforfixingscrewTypicaltighteningtorqueformountingofLinearWayModuleseriestothesteelmatingmembermaterialisindicatedinTable6.Whenvibrationandshockofthemachineordevicearelarge,fluctuatingloadislarge,ormomentloadisapplied,fixitbyusingthetorque1.2to1.5timeslargerthanthevalueindicatedinthetableasnecessary.Ifthematingmembermaterialiscastironoraluminumalloy,reducethetighteningtorquedependingonthestrengthcharacteristicsofthematingmembermaterial.Table6TighteningtorqueforfixingscrewBoltsize2.6×0.453×0.54×0.75×0.86×18×1.25MMMMMMM10×1.5M12×1.75TighteningtorqueN・mHighcarbonsteel-madescrewStainlesssteel-madescrew-1.84.18.013.632.763.91100.71.1------Remark:Thetighteningtorqueiscalculatedbasedonstrengthdivision12.9andpropertydivisionA2-70.
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