Specifications:Full/Hybrid ceramic ball bearingsCeramic ball especially Si3N4 have the following performance as low density, high strength, low tribology modulus, wear resistance, well rigidity, lubrication and maintenance free when working, it is the best choice for rollers (inner ring and outer ring are made by metal) of the hybrid ceramic ball bearing which are used in high-speed, high accuracy and long life environments.There are basically three types of Ceramic Ball Bearings;Ceramic "Hybrid" Ball Bearings; Where the rolling elements, or balls, are ceramic(ZrO2, Si3N4 or Sic), but the inner and outer rings are still conventional steels(Normally Chrome Steel 52100 or AISI440C). "Partial" Ceramic Ball Bearings; Where the rolling elements, and the inner ring are ceramic, but the outer ring is still made of steel. "Full" Ceramic Ball Bearings; Where the rolling elements, inner, and outer rings are made of silicon nitride. Motor RacingAll racing programs will benefit from the use of Ceramic Hybrids. Since people race anything from multi-million dollar Formula 1 cars, to John Deere lawn tractors, Some of the programs that will see significant gains are; Endurance racing Land speed attempts Drag racing Indy cars Champ cars Prototype racing Club racing Open wheel Sprint cars Stock cars Snowmobile Water craft Go Karts ATV's Motorcycle RacingDue to their extreme durability under adverse conditions and increase in performance, most types of Motorcycle applications will benefit form the use of Ceramic Hybrids. Road racing Drag racing Endurance racing, on road and off. Rally Flat track Speedway Supermoto Ice (lower lubrication requirements for ceramics is beneficial in cold climates!) Vintage Extreme off road series. Motocross Dual Sport Street Touring INDUSTRY Great advantages are achieved with machine tool applications Grinding Milling Boring Drilling Aircraft accessories/aerospace Generators Gyros Gearboxes APU's Turbine engines Radar Weapon Systems Satellites Industrial Machinery Robotics Generators Electric Motors* Automated electronic assembly Turbomolecular pumps Diesel fuel injection pumps Textile machines Woodworking machinery Food processing equipment Drilling equipment Automotive Heavy Equipment Medical equipment Dental drills Centrifuges X-ray tubes