>> P.108
Ⅱ-58PrecautionforUse❶ountingsurface,referencemountingsurfaceandtypicalmountingstructureWhenmountingtheMVseries,properlyalignthereferencemountingsurfaceBandDofthetrackrailandslideunitwiththereferencemountingsurfaceofthetableandbedandfixthem.(SeeFig.2)ThereferencemountingsurfacesBandDandmountingsurfacesAandCarepreciselyground.Machiningthemountingsurfaceofthetableandbed,suchasmachineordevice,tohighaccuracyandmountingthemproperlywillensurestablelinearmotionwithhighaccuracy.Referencemountingsurfaceoftheslideunitistheoppositesideofthemark.Thetrackrailreferencemountingsurfaceisidentifiedbylocatingthemarkonthetopsurfaceofthetrackrail.Itisthesidesurfaceabovethemark(inthedirectionofthearrow).(SeeFig.3)Fig.2ReferencemountingsurfaceandtypicalmountingstructureFig.3ReferencemountingsurfaceBACDTrackrailSlideunitBDMarkMarkReferencemountingsurface❷houlderheightandcornerradiusofthereferencemountingsurfaceFortheoppositecornerofthematingreferencemounting,itisrecommendedtohaverelievedfilletasindicatedinFig.4.RecommendedvaluefortheshoulderheightandcornerradiusonthematingsideisindicatedinTable12.Fig.4CornerofthematingreferencemountingTable12houlderheightandcornerradiusofthereferencemountingsurfaceSizeMountingpartofslideunitMountingpartoftrackrailShoulderheighth1CornerradiusR1(maximum)Shoulderheighth2CornerradiusR2(maximum)2050.230.52550.530.53050.530.5❸TighteningtorqueforfixingscrewTypicaltighteningtorqueformountingoftheMVseriestothesteelmatingmembermaterialisindicatedinTable13.Whenvibrationandshockofthemachineordevicearelarge,fluctuatingloadislarge,ormomentloadisapplied,fixitbyusingthetorque1.2to1.5timeslargerthanthevalueindicatedinthetableasnecessary.Ifthematingmembermaterialiscastironoraluminumalloy,reducethetighteningtorquedependingonthestrengthcharacteristicsofthematingmembermaterial.Table13TighteningtorqueforfixingscrewBoltsizeTighteningtorqueN・mHighcarbonsteel-madescrewStainlesssteel-madescrewM5×0.88.05.0M6×113.68.5M8×1.2532.720.4Remark:hetighteningtorqueiscalculatedbasedonstrengthdivision12.9andpropertydivisionA2-70.R2R1R2h2h1R1MountingpartoftrackrailMountingpartofslideunit1N=0.102kgf=0.2248lbs.1mm=0.03937inch
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