Name: Thin Section Ball Bearing NJB055XP0 Item:Rubber Sealed 5/16"(7.938mm)Cross Section Ball Bearing Inner Diameter (ID): 139.7mm Outer Diameter (OD): 155.575mm Dimensions: 139.7*155.575*7.938 mm Dynamic load rating Cr: 1.040 N Static load rating Cor: 3,730 N ID (inner diameter)/Bore=139.7mm OD (outer diameter)=155.575mm Width/Height/thickness=7.938mm Cage: Brass Balls: Bearing Steel Closures: Double sealed with rubber J Lubrication: Self Lubricated (Grease) Bearing Equivalents: KRB055 ,KB055CP0 and CSCB055 Bearings