Specification Brand : NTN BulletPoint1 : These miniature bearings are made of high quality bearing steel for low noise and long service life. BulletPoint2 : They are double shielded to avoid entering and save lubricant. BulletPoint3 : Bearings have 5mm inner diameter, 16mm outer diameter and 5mm thickness. BulletPoint4 : These are great for small hobby 5mm shaft/rod projects. BulletPoint5 : There comes total 10 pieces miniature bearings which you may use for many different projects. ExternallyAssignedProductIdentifier : 4547359380743 ExternallyAssignedProductIdentifier1 : 0736077760218 ExternallyAssignedProductIdentifier2 : 736077760218 IncludedComponents : Ball Bearing ItemDisplayWeight : 5 pounds ItemName : 6301Z NTN New Single Row Ball Bearing ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 1.57 inches ItemPackageDimensions_Width : 1.57 inches ItemPackageQuantity : 1 ItemTypeKeyword : deep-groove-ball-bearings Manufacturer : NTN Material : Steel ModelNumber : Acogedorbwpdgc6ru1 NumberOfItems : 1 PackageLevel : unit PartNumber : 6301Z ProductDescription : THIS LISTING IS FOR 1 PIECE: 6301Z NTN RADIAL/DEEP GROOVE BALL BRG - 12 MM ID X 37 MM OD X 12 MM W; SHIELDED - FACTORY NEW ProductSiteLaunchDate : 2018-05-29T05:00:28.511Z Size : 15x32x9mm SpecificationMet : ABEC 3 SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 2 UnspscCode : 27110000