>> P.301
Ⅲ-7LoadRatingandLifeDynamicequivalentloadWhenaloadisappliedinadirectionotherthanthatofthebasicdynamicloadratingoracomplexloadisapplied,thedynamicequivalentloadmustbecalculatedtoobtainthebasicratinglife.Obtainthedownwardandlateralconversionloadsfromtheloadsandmomentsinvariousdirections.Fre=krFr+C0―T0M0+C0―TXMX(6)Fae=kaFa+C0―TYMY(7)[ForLinearWayHSidemountingtype(LWHY)]Fae=kaFa+C0―T0M0+C0―TXMx(8)Fre=krFr+C0―TYMY(9)where,Fre:Downwardconversionload,NFae:Lateralconversionload,NFr:Downwardload,NFa:Lateralload,NM0:MomentloadintheT0direction,N・mMX:MomentloadintheTXdirection,N・mMY:MomentloadintheTYdirection,N・mkr,ka:onversionfactorsforloaddirection(SeeTable3)C0:Basicstaticloadrating,NT0:taticmomentratingintheT0direction,N・mTX:taticmomentratingintheTXdirection,N・mTY:taticmomentratingintheTYdirection,N・mTable3ConversionfactorforloaddirectionSeriesnameandsizeConversionfactorkrkaFr≧0Fr<0C-LubeLinearWayMLLinearWayLBallretainedtype111.19Ballnon-retainedtype110.84C-LubeLinearWayMLV111.19C-LubeLinearWayMV11.231.35C-LubeLinearWayMELinearWayE15～3011135～4511.191.28LowDecibelLinearWayE111C-LubeLinearWayMHLinearWayH8～12111.1915～3011135～6511.191.28LinearWayHHorizontalmountingtype15～3011135～45(1)110.840.95LinearWayF33～4211169111.19LWFH11.191.28C-LubeLinearWayMULLinearWayU25,30111.1940～86111C-LubeLinearRollerWaySuperMXLinearRollerWaySuperX111LinearRollerWayX111inearWayModuleLWLM110.73LRWM110.58Note(1)heuppervalueofkacolumnsrepresentstherightdirectionandthelowervaluerepresentstheleftdirection.Obtainthedynamicequivalentloadfromthedownwardandlateralconversionloads.P=XFre+YFae(10)where,P:Dynamicequivalentload,NX,Y:Dynamicequivalentloadfactor(SeeTable4)Fre:Downwardconversionload,NFae:Lateralconversionload,NTable4DynamicequivalentloadfactorClassXYFre≧Fae10.6Fre<Fae0.61FrFrFrFaFaFaLinearWayandLinearRollerWayLinearWayModuleLinearWayHSidemountingtype
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