>> P.67
LubricationPrecautionforUseGreaseisnotpre-packedintheCRWUGseriesandCRWUseries,sopleaseperformadequatelubricationasneeded.BothofoillubricationandgreaselubricationareavailableintheCRWUGseriesandCRWUseries.Generally,oillubricationshouldbeselectedlowfrictionalresistance,andgreaselubricationforlowspeed.Forgreaselubrication,useofhigh-qualitylithium-soapbasegreaseisrecommended.forhighspeedorDustProtectionSincetheCRWUGseriesandCRWUseriesarefinishedwithhighaccuracy,harmfulforeignsubstancessuchasdustandparticlesenteringintothebearingwillcauselowlifeorimpairedaccuracy.Forapplicationsinotherthancleanenvironment,covertheentireunitwithaprotectivecase,etc.topreventharmfulforeignsubstancessuchasdust,particlesandwaterfromoutsidefromentering.Ⅱ-59❶HandlingAstheCRWUGseriesandCRWUseriesaredesignedhighlyprecisely,takeextracareforhandling.CageoftheCRWUGserieshasapiniongearincorporated.Whenthecageisdroppedorhandledroughly,thepiniongearmaycomeoff.Inaddition,donotcutoffthecageasdoingsomaycausepiniongearcomingoffandbreakageofgearjointsection.WayoftheCRWUGserieshasarackincorporated.Inoperation,takenotethattherackmaycomeoffwhentheendscrewisremoved.FortheCRWUseries,thecagemaybedeviatedfromtherightpositionduetooffsetloadorirregularandhigh-velocitymotion,etc.Fullystrokeitonceincertainoperatingtimeorcertainnumberofreciprocatingmotiontocorrectthecageposition.fixingscrewsof❷Preloadre-adjustmentPreloadamountoftheCRWUGseriesandCRWUseriesisadjustedtozeroorslightpreloadstate,sotheymaybeusedastheyare.PreloadamountoftheCRWUGseries,CRWU,andCRWU…Rmaybere-adjustedbyfollowingtheprocedurebelow.Preloadadjustmentisstartedfromthepreloadadjustingscrewatthecenterofwaylengthandthenbothendsinturn,withthepreloadadjustingsidewaytemporarilyfixed.Whilemeasuringtheclearanceonthetablesides,tightenthepreloadadjustingscrewssubsequentlyuntildeflectionofthedialgaugestops.Measurethetighteningtorqueforpreloadadjustingscrewsatthispoint.Whenadjustingpreloadadjustingscrewneareitherend,strokethetablesoftlyandcheckthatthecylindricalrollerisonthepreloadadjustingscrewsection.Aftertheaboveprocedure,theclearancebecomeszeroorinslightpreloadstate,butpreloadisstillnotadjustedevenly.Withthesameprocedureagain,re-adjustallthepreloadadjustingscrewsevenlytothetorquepreviouslymeasured.3.giFExampleofpreloadadjustmentmethod❸OperatingtemperatureAssyntheticresincomponentsareusedfortheCRWUGseries,themaximumoperatingtemperatureis120°C,whileitshouldbelowerthan100°Cforcontinuoususe.Whenitexceeds100°C,contactIKO.AssyntheticresincomponentsarenotusedfortheCRWUseries,itmaybeusedathightemperature.However,whenitexceeds100°C,contactIKO.❹MaximumvelocityOperatingvelocityshouldnotexceed30m/minduringoperation.