WDQ is a leading manufacturer of high-quality Jewel Bearings. Synthetic sapphire bearings and ruby bearings, 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 bearings, long life, and dimensional accuracy are important.
Jewel Bearings are precision miniature components typically made of synthetic sapphire and ruby because of their superior hardness and ability to accept a high polish.
Synthetic sapphire and ruby have the performance of high hardness, high strength, scratch resistance, corrosion resistance, and a small coefficient of friction. Jewel Bearings out of sapphire is the ideal material for instruments, meters, control devices, precision mechanisms where low friction, long life, and dimensional accuracy are important. Due to its high-temperature resistance and chemical durability, sapphire jewel bearings are particularly useful for applications in Petrochemical, Process Control and Medical Instrumentation. Sapphire Jewel bearings present highly consistent static friction and low kinetic friction. sapphire-on-steel has a static coefficient of friction of 0.10~0.15. Jewel bearing surfaces maintain their smoothness even after decades of use, which means jewel bearings have very low friction variability.
Jewel Bearings are precision miniature components typically made of synthetic sapphire and ruby because of their superior hardness and ability to accept a high polish.
Synthetic sapphire and ruby have the performance of high hardness, high strength, scratch resistance, corrosion resistance, and a small coefficient of friction. Jewel Bearings out of sapphire is the ideal material for instruments, meters, control devices, precision mechanisms where low friction, long life, and dimensional accuracy are important. Due to its high-temperature resistance and chemical durability, sapphire jewel bearings are particularly useful for applications in Petrochemical, Process Control and Medical Instrumentation. Sapphire Jewel bearings present highly consistent static friction and low kinetic friction. sapphire-on-steel has a static coefficient of friction of 0.10~0.15. Jewel bearing surfaces maintain their smoothness even after decades of use, which means jewel bearings have very low friction variability.
Sapphire & Ruby Jewel Bearing
