>> P.254
ROLLERBEARINGSRollerBearingsforSheavesShaftdia.180-280mmIdentificationnumberSealedtypeShieldtypeNAS5036UUNRNAS5036ZZNRNAS5038UUNRNAS5038ZZNRNAS5040UUNRNAS5040ZZNRNAS5044UUNRNAS5044ZZNRNAS5048UUNRNAS5048ZZNRNAS5052UUNRNAS5052ZZNRNAS5056UUNRNAS5056ZZNRMass(Ref.)kg30.031.540.552.055.585.090.9Boundarydimensionsmmd180190200220240260280D280290310340360400420D2294306326356376416440BC136136150160160190190135135149159159189189C1110110120130130154154S12.512.514.514.514.517.517.5Shaftdia.mm180190200220240260280Notes(1)Minimumallowablevalueofchamferdimensionr(2)Allowablerotationalspeedappliestogreaselubrication.Consideringthattheaxialloadactsunderpracticaloperatingconditions,upto1/10ofthisvalueisrecommendedforactualuse.Remarks1.Theinnerringhasanoilgrooveandtwooilholes.2.RollerBearingsforSheavesareprovidedwithprepackedgrease.E21
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