Silicon Nitride Ceramic Single Ball 3/16" (4.762 mm)

Every CeramicSpeed Ball is made of the highest quality Grade 3 Silicon Nitride, featuring the highest achievable surface finish and roundness. The quality of the balls is what determines the performance and longevity of a bearing.

The production of a CeramicSpeed Ball is a time-consuming process that ensures the highest quality ceramic ball, which is smoother, rounder and harder than any other steel or ceramic ball available on the market.