ball bearings, ball screws, ceramic balls, ceramic bearings, linear bearings, ceramic engineering, surface finishing, houseware products, roller bearings, silicon nitride balls, ball valves, linear motion bearings, rotary motion bearings, ball bearing guide components, silicon nitride (12033-89-5) available from saint-gobain advanced ceramics based in east granby, ct. click the links below to visit our website or contact us via our profile page.