uxcell 2mm Ceramic Bearing Balls Si3N4 Silicon Nitride Ball G5 Precision 20pcs

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 bicycles, 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 Specification: Size: 2mm Precision: G5 Material: Silicon Nitride (Si3N4) Package Content: 20 Piece