Note: cage and roller can choose according to customer requests
         roller material you can choose pressureless sintered SSiC, gas pressed Si₃N₄ or hot pressed Si₃N₄

If you need a custom order bearing, the race can be made from Silicon Nitride, Zirconia Oxide, Chrome Steel 52100 or Stainless Steel.  The ball material can be made from Silicon Nitride or Zirconia Oxide.  The retainer can be Nylon, PTFE, PEEK, or full compliment.  The bearing can be sealed or opened, greased or dry.