Sapphire crystal are excellent materials due to their high hardness,high strength,scratch resistance,high-temperature resistance,as well as low coefficient of friction. Therefore it is the ideal material for manufacturing sapphire bearings.

Sapphire bearing generally applied for electronic meter, hot water meter, liquid measuring instrument, movement system of single-phase, triphase KHW meter,control device and other precision mechanisms where long life, low friction and dimensional accuracy are required.

Ricun optical with rich experience in sapphire nozzles fabrication and we can ensure the super surface finish and tighter tolerances to meet customers' precision applications.The hole diameter of sapphire orifices is available in sizes from 0.04 to 0.18 mm,and tolerance up to 0.002mm.The surface of the hole can be highly polished and surface quality can reach 40/20.

 Normally we provide cup bearing, Vee bearing and ring bearing. The sapphire bearings can be customized as per the customer’s drawing, design, and specifications.

Technical parameters of sapphire bearing