.Sapphire Jewel Bearings & Washers

.Why Use Sapphire:  

Synthetic sapphire and ruby, because of their hardness and ability to accept a high polish, are recognized universally as the ideal jewel bearing material for instruments, meters, control devices and other precision mechanisms where low friction, long life and dimensional accuracy are important. Ranking next to diamond in Moh’s hardness, synthetic sapphire is identical in chemical composition to natural sapphire, but is a far superior jewel bearing material because impurities and flaws are eliminated

.Key Features Of Synthetic Sapphire:

1.Excellent Moh's Hardness Upto 9H, Only Softer Than Diamond(10H)

2.Great Transmittance From 200nm~5000nm; AVG>85% @ Visible Light Freqency

3.No Attacked By Acid Or Alkalis, Only Attacked By HF At 300℃.

4.High Softening Point, Low Thermal Expansion.

5.Excellent Mechnical Properties.

.Main Types Of Sapphire Jewels:

1.Sapphire Ring Jewels- For Bearings & Washers In Electronic Field

2.Endstones- For Machine Watch

3.Vee Jewels- For Nozzles 

3.Cup Jewels- For Bearings