>> P.254
E21ROLLERBEARINGSRollerBearingsforSheavesNotes(1)Minimumallowablevalueofchamferdimensionr(2)llowablerotationalspeedappliestogreaselubrication.Consideringthattheaxialloadactsunderpracticaloperatingconditions,upto1/10ofthisvalueisrecommendedforactualuse.Remarks1.Theinnerringhasanoilgrooveandtwooilholes.2.RollerBearingsforSheavesareprovidedwithprepackedgrease.Shaftdia.mmSealedtypeShieldtypeMass(Ref.)IdentificationnumberkgBoundarydimensionsmm30.0NAS5036UUNRNAS5036ZZNR18028029413613511012.518031.5NAS5038UUNRNAS5038ZZNR19029030613613511012.519040.5NAS5040UUNRNAS5040ZZNR20031032615014912014.520052.0NAS5044UUNRNAS5044ZZNR22034035616015913014.522055.5NAS5048UUNRNAS5048ZZNR24036037616015913014.524085.0NAS5052UUNRNAS5052ZZNR26040041619018915417.526090.9NAS5056UUNRNAS5056ZZNR28042044019018915417.5280Shaftdia.180-280mmdDD2BCC1S
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