Bird Precision - Waltham, MA
Manufacturer, Custom Manufacturer
Manufacturer of rings, vees, endstones, precision components & balls using synthetic ruby. Applications include gauges, indicators, aircraft instruments, watches, clocks, potentiometers & gyroscopes & where shaft of a rotating member is cylindrical, requiring the use of an annular bearing & pivot or shaft extends through the bearing to support some portion of the instrument. Ring jewels may substitute for ball bearings.
www.birdprecision.com/bearings/balls.cfm

Goodfellow Corp. - Coraopolis, PA
Distributor
Distributor of synthetic rubies. Pure metals & alloys for research, prototype development & small run applications.
www.goodfellowusa.com/A/Ruby.html

Swiss Jewel Co. - Philadelphia, PA
Distributor, Manufacturer, Custom Manufacturer
Manufacturer & distributor of synthetic precision sapphires & rubies for applications including industrial & medical OEM's, air & gas analyzers & monitors, UV & IR windows & lenses, optical, detector & pressure cells, photodiodes & bar code readers.
www.swissjewel.com/1/products/

Preciball - Savannah, GA
Manufacturer, Custom Manufacturer
Manufacturer of standard and custom synthetic rubies and sapphires. Available in different cut shapes. Synthetic ruby and sapphire cut parts are used for applications including mechanical parts, pumps and spray/dispersion nozzles for water, gas, glue or other chemicals. Synthetic ruby and sapphire cut parts can be also used as seals, valve seats, thermo isolation, gas burners and bearings in mechanical, medical and aerospace applications.
www.preciball.com/index.php/en/special-prod...

Norca Precision - Great Neck, NY
Manufacturer, Custom Manufacturer, Service Company
ISO 9000 & ISO 9002 certified custom fabricator of synthetic rubies. Products include ruby balls, bearings, orifices & nozzles.
www.norcaprecision.com/machined_sapphire.sh...

Microlap Technologies, Inc. - Rolla, ND
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of precision components made from synthetic ruby & sapphire, ceramic, silicon nitride, carbide & other materials based on customer requirements. Products are available in standard or custom sizes & configurations which enables a variety of multiple applications.
www.microlap.com

General Ruby & Sapphire Co., Div. of EWM General Corp. - New Port Richey, FL
Custom Manufacturer
Custom manufacturer of synthetic rubies. Specifications include 3.98 g/cc density, 2,040 degrees C melting point, 345 GPa Young's modulus, 2,000 Knoop hardness, 20 degrees C to 200 degrees C thermal expansion & 6.94.3 nm output wavelength. Applications include switched, power, holographic camera, laser metal working & medical laser systems.
www.generalruby.com/Ruby-Laser-Rods/

Sapphire Engineering, Inc. - Pocasset, MA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer Of Bearings, Plug Gages, Pivots, Ind. Sapphires; Lapping, Polishing Service

Imetra - Elmsford, NY
Manufacturer, Custom Manufacturer
Sapphire, Agate, Tungsten & Carbide

ICT, Inc. - Shelby, MI
Manufacturer
Manufacturer of zirconium oxide, sapphire, ruby & YAG crystals.

Silian Tech Co. Ltd. - Vancouver, BC
Manufacturer, Custom Manufacturer, Manufacturers' Rep
Manufacturer of synthetic sapphire, ruby & customized ceramic components for various industrial markets, sapphires & ruby: optical, synthetic windows, rods, balls, orifices, substrates, nozzles, cups, vees, UV & IR windows & lenses. ISO 9001-2000 certified.