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Zirconia bearings

by:Waxing     2020-12-08
Zirconia bearing features: high temperature resistant corrosion resistant to acid and alkali resistant silicon nitride balls are in the high temperature oxidation atmosphere sintering precision, high strength, high wear resistance, high temperature resistance, corrosion resistance, acid, alkali, can be used in water medium and has good performance of insulation materials magnetic. At 800 ℃, the strength and hardness is almost the same, its density is 3. 20 g/cm3, is almost 1/3 of the bearing steel. Weight, when rotating centrifugal force. Can realize high-speed operation. Also have self lubrication, it can be used to no lubrication medium high pollution of environment. As bearing, ball bearings mixed material of choice for silicon carbide ball its density is 3. 20 g/cm3 and Si3N4 balls, same at 1400 ℃, the strength and hardness is almost the same, silicon carbide ball also have self lubrication can solve lubricating medium pollution, hardness higher than Si3N4, but compressive strength and fracture toughness is lower than Si3N4. Zirconia ball, at room temperature with high strength and high toughness, good wear resistance, high temperature resistance, corrosion resistance, high stiffness, permeability, electrical insulation. Zirconia ball at 600 ℃, strength and hardness is almost the same its density is 6. 00 g/cm3, close to the metal thermal expansion rate if the inflation rate, can be used with metal joint. ( Return] In an article: the comparison of the bearing and metal composite bearing building next article: full bearing installation instructions
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