Specification Brand : TRiPEAK BulletPoint : BALL BEARING-DOUBLE ROW BulletPoint1 : 【Bearing Specification】Double Sealed Angular Contact Bearing with OD: 52mm x ID: 40mm x Width: 8mm x Angles: (45°/45°). Note that the inner angle is listed first. BulletPoint2 : 【Perfectly Sealed Feature】TRiPEAK Head Set Bearings are perfectly sealed to provide butter-smooth and play-free turning of the handlebar, stem, and fork. Focus on the ride for confident sharp turns and precise attack. BulletPoint3 : 【Precision Angular Machinery】Beveling both edges of the bearings to the exact angles intended. Provides optimal fit to your headset and conquers off-axis loads without cracking as conventional ones. BulletPoint4 : 【High Precision Bearing】The bearing balls are made of quality material that withstands sweat, protection of front end creaks and rough steering. BulletPoint5 : 【Easy Maintenance】Proper cleaning helps headset bearings last 3-times longer. To service the bearings, soak the cage in a degreaser and reinstall. The perfectly sealed cage will protect serviced bearings from dirt and grit. Color : silver tone CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 4710243282588 ExternallyAssignedProductIdentifier1 : 810191011750 ExternallyAssignedProductIdentifier2 : 0810191011750 GpsrSafetyAttestation : 1 IncludedComponents : Angular Contact bearing ItemDisplayDimensions_Length : 2 inches ItemDisplayWeight : 1.14 pounds ItemName : TRiPEAK Bicycle Headset Double Sealed Angular Contact Bearing 52mm OD x 40mm ID x 8mm Width x (45°/45°) Angles, 1 Piece ItemPackageDimensions_Height : 12.7 centimeters ItemPackageDimensions_Length : 0.6096 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : angular-contact-bearings Manufacturer : TRiPEAK Material : 高碳鋼 Material1 : Rubber Material2 : Alloy Steel ModelNumber : EMA-520400-H80A45D NumberOfItems : 1 PackageLevel : unit PartNumber : EMA-520400-H80A45D ProductDescription : Double Row Sealed Angular Contact Ball Bearing ProductSiteLaunchDate : 2019-01-22T08:00:00.000Z Size : Double Sealed Angular - 52*40*8mm (45°/45°) SpecificationMet : G5 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 31171500