PROVIDENCE, R.I., May 6, 2025 -- A line of miniature sapphire and ruby balls for a wide range of applications including precision bearings, valves, stylus tips, fiber-optic and optical components has been introduced by Meller Optics, Inc. of Providence, RI.
Meller Sapphire & Ruby Balls are offered in 42 inch and metric sizes from 0.1 mm to 0.5" dia. with 0.000025" sphericity and ±0.0001" basic diameter tolerance and feature Mohs 9 hardness. Capable of withstanding up to 50,000 psi, these robust, chemically inert miniature balls have a 2,000ºC melting point, are biocompatible, and provide excellent optical transparency.
Suitable for a wide variety of applications, Meller Sapphire & Ruby Balls exhibit zero porosity and have surface finishes of 20-10 scratch-dig or better. They have a 0.2 coefficient-of-friction, a refraction index of 1.76 microns at 20oC and are non-magnetic. These versatile balls can also be drilled and precision ground into miniature plano-convex lenses.
Meller Sapphire and Ruby Balls are priced according to material, size, and quantity; delivered from stock. Samples are available upon request.
For more information contact:
Meller Optics, Inc.
Craig Schweriner, Marketing
120 Corliss St. / P.O. Box 6001
Providence, RI 02940
(800) 821-0180 FAX (401) 331-0519
e-mail: craig@melleroptics.com
www.melleroptics.com
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