Corundum crystal ruby trough bearing

Gemstone bearings are mainly used in instruments.The bearing of instrument and meter can bear small load, but it should have high rotating precision, good sensitivity and long service life.The gem has low friction number, high hardness, corrosion resistance, small coefficient of thermal expansion and high compressive strength, which can meet the use requirements of the instrument bearing.The material of gem shaft is corundum, agate, glass-ceramics, etc.Corundum is the body of alumina, which is found in both natural and man-made forms.Natural corundum has many impurities and uneven texture, so artificial corundum is most widely used.

Gem bearing is the key component of instrument, precision instrument and other precision instrument equipment.The raw material of sapphire bearing is corundum (sapphire, ruby, etc.), which has a Hardness of Morse 9, abrasion resistance and high temperature resistance, high elastic modulus, and machining roughness up to 0.01 m. The friction coefficient between the bearing and metal material is small, about 0.14-0.15.And high mechanical strength, can be used as a precision supporting element.