>> P.254
ROLLER BEARINGSRoller Bearings for SheavesShaft dia. 180-280mmIdentification numberSealed typeShield typeNAS 5036UUNRNAS 5036ZZNRNAS 5038UUNRNAS 5038ZZNRNAS 5040UUNRNAS 5040ZZNRNAS 5044UUNRNAS 5044ZZNRNAS 5048UUNRNAS 5048ZZNRNAS 5052UUNRNAS 5052ZZNRNAS 5056UUNRNAS 5056ZZNRShaftdia.mm180190200220240260280Mass (Ref.)kg30.031.540.552.055.585.090.9Boundary dimensionsmmdDD2BCC1S18028029413613511012.519029030613613511012.520031032615014912014.522034035616015913014.524036037616015913014.526040041619018915417.528042044019018915417.5Notes(1)Minimum allowable value of chamfer dimension r(2) llowable rotational speed applies to grease lubrication. Considering that the axial load acts under practical operating conditions, up to 1/10 of this value is recommended for actual use.Remarks1.The inner ring has an oil groove and two oil holes.2.Roller Bearings for Sheaves are provided with prepacked grease.E21
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