Sapphire Ball

For good mechanical properties and hardness( Mohs 9), sapphire and ruby are often used for the bearing of many meters, clocks, parts of abrasion-resistance. V-shape and U-shape bearing are widely used in flowmeters, ammeters, water meters.SpecificationOutside Diameter: 0.80~10.00mm, max deviation of outside diameter: H7~h9Height H: 0.60 ~ 5.00mm, max deviation of height: ± 0.01Cup depth h: 0.20 ~ 0.80mm, max deviation of cup depth: 0 ~ 0.06Curvature radius SR: 0.60 ~ 5.00mm, max deviation of curvature radius: ± 0.03Taper: 60° ~ 120° Max deviation of taper: ± 5°Technical IndexMaterial: Synthetic sapphire/ruby single crystal a-Al2O3, natural agate, crystallite glass and ceramic, etc.