Not astonishingly, a ruby and sapphire ball render superior quality due to their supreme attributes. They offer utmost resistance to abrasion which is 5 times that of carbide. Both demonstrate the capability to bring about an exceedingly silky finish. Owing to their null porosity and crystalline composition, micro finishes of 2 can be accomplished effortlessly. Enormous hardness, unresponsiveness to chemical substances (even to hydrofluoric acid), a low friction coefficient, elevated thermal conductibility and outstanding resistance to wear and tear are some of the positive aspects that make these balls the most sought after in the industry. Their many beneficial attributes make them the major prospects for virtually hundreds of usages. Ruby balls are presently employed in fibre optic connectors, ball check valves, bar code scanners, wind indicators, medical check valves, ball point pens, and bearing applications. A sapphire ball can be drilled and employed as precise jeweled bearing rollers for low abrasion and long-wearing applications. They can also be applied in applications generating high heat; their melting point is 2,000 degree Celsius, even so oxidization of the material is not problematic at all. Sapphire also exhibits first-rate temperature and optical calibres, in addition to supreme firmness. Glass ball lens or half ball lens is manufactured from a variety of materials such as ruby, sapphire, ceramic, cubic zirconia, spinel and optical glass. Manufacturers of these balls and half balls generally check them for cent percent accuracy in size and polish aspects prior to delivery. Ruby and sapphire balls are used in fibre optic lens system for a number of reasons. Their resistance to scratch, excellent index of refraction (1.76 microns at 20 degrees Celsius), 80 percent to 90 percent conduction in infrared wavelengths, sturdiness and stability in temperature make them ideal in painstaking uses. Similarly, their use in ball and roller bearings can give the items a more extended lifespan because of low coefficient of friction, extensive wear, low elastic distortion and resistance to heat and chemical substances. Therefore, ruby or sapphire balls as well as half ball hemisphere are the ultimate things to own in order to enhance the production, performance and superiority of your products.