ELECTRONICS: Miniature precision sapphire and ruby balls for use in medical and chemical pumps as check- and metering valves, as ball- and roller bearings and endo-scope lenses are available from Meller Optics Inc.
Meller Sapphire and Ruby Balls are second only to diamond in hardness to provide superior wear resistance, have a 2,000C melting point, and are impervious to most chemicals, solvents, and detergents. Ideally suited for applications in medical devices and instruments, these miniature precision balls are offered in 42 inch and metric sizes from 0.1mm to 0.5 inch dia.
Featuring Moh 9 hardness (Knoop 1800 perpendicular to the C-axis and 2200 parallel to the C), Meller Sapphire and Ruby Balls have surface finishes of 20-10 scratch-dig or better and can be precision ground into plano-convex lenses and drilled for use as bearing rollers.
Meller Sapphire and Ruby Balls are priced according to material, size, and quantity; delivered from stock. Samples, literature, and price quotations are available upon request.
-Edited by Kelsey Anderson