Specification Brand : uxcell BulletPoint : 7/8 BulletPoint1 : MR148-2RS (I.D.=8mm, O.D.=14mm, Thickness=4mm) BulletPoint2 : mr148rs bearings are sealed on BOTH SIDES to keep lubricant in BulletPoint3 : Chromium Steel long-life bearings, smooth and low noise BulletPoint4 : ABEC Tolerance 3 (P6), Z1 Noise Level for most general use BulletPoint5 : Static load rating of 386 newtons and dynamic load rating of 817 newtons Color : Blue ExternallyAssignedProductIdentifier1 : 793200412994 ExternallyAssignedProductIdentifier2 : 0793200412994 ExternallyAssignedProductIdentifier3 : 00793200412994 ItemName : uxcell MR148-2RS Deep Groove Ball Bearing 8x14x4mm Double Sealed ABEC-3 Bearings 4-Pack ItemPackageDimensions_Height : 13.8 centimeters ItemPackageDimensions_Length : 1.8 centimeters ItemPackageDimensions_Width : 9.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : deep-groove-ball-bearings Manufacturer : uxcell Material : Steel ModelNumber : a19042400ux1128 NumberOfItems : 4 PartNumber : a19042400ux1128 ProductDescription : Description: -These ceramic bearing balls are great for applications were there will be extreme rotation and a premium performance bearing ball is required to meet the demands. -Lighter and stronger than tungsten carbide, these silicon nitride balls are diamond polished, will not shatter or melt in the extreme conditions. -Higher hardness than chrome steel balls. Vickers hardness up to 1700HV. -Specially useful for casters, drawer slides, door locks and many other applications.
Suitable for a range of purposes, some of the most common are listed below: -1/8" is often used for clusters and old English-style headsets -1/4" is often used for rear wheels and bottom brackets -3/16" is often used for front wheels -5/32" is often used for headsets with pressing cups