6mm Ceramic Bearing Balls, Si3N4 Silicon Nitride Ball G5 Precision 5pcs

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.

eBay