>> P.240
CrrdJEwDrrNAG49(d≦17)Boundarydimensionsd10101212151515171717202020202525252830303032353535D22222424282833303034373738384242444547474852555556C13131313131320131325171720251717253017173030202030mm(1)rsmin0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.60.60.60.6JEw15.515.518.518.51717212119.522.522.521.52424252529.529.530.531.534343538404040202024242725.525.529.531.531.532.532.537373839.541.541.542.546494949Mass(Ref.)g25.524.528.527.53836.580.54139.510076.57696.512289.589154173103102197260172168270ROLLERBEARINGSCagedRollerBearingsFullComplementRollerBearingsShaftdia.10-35mmIdentificationnumberShaftdia.mmFullcomplementtypeCagedtype──────TRU153320──TRU173425──TRU203820TRU203825──TRU254425TRU284530──TRU304830TRU325230──TRU355630NAG4900─NAG4901──NAU4900─NAU4901───────────────NAU4902NAU4903NAU4904NAU4905NAU4906NAU4907NAG4902──NAG4903──NAG4904───NAG4905───NAG4906───NAG4907──10121517202528303235Notes(1)Minimumallowablevalueofchamferdimensionr(2) Allowablerotationalspeedappliestooillubrication.Forgreaselubrication,amaximumof60%ofthisvalueisallowable.Consideringthattheaxialloadactsunderpracticaloperatingconditions,upto1/10ofthisvalueisrecommendedforactualuse.Remarks1.TheNAGandNAUserieswithaborediameterdof17mmorlesshavenooilhole.Inothers,theouterringhasanoilgrooveandtwooilholes.2.Nogreaseisprepacked.Performproperlubrication.E7
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