Ceramic ball hybrid bearings1.Ring: stainless steel or Gr15 steel material2.Ball:ZrO2 or Si3N4 cramic material3.Cage:Nylon or steel ----------------------------------------------------------------------------------------------------------------------------------Kove Bearing widely used in assembling of semiconductor, plating machine, PCB machine, Petrol, Chemical, Electrical, Food, Medical, Marine, Aerial industry, It can be used in extreme badly environment and special situation. About the Corrosion resistance, nonmagnetic insulated, high temperatures of Ceramic ball hybrid bearings1. (Outer, inner ring with stainless steel or Gr15 steel, ball with ceramic ZrO2 or Si3N4 material, the cage with PTFE,Steel or Nylon) the High temperature will attainability within 260 centi-grade