PEEK cage full ceramic ZrO2 ball bearing for bikes

Product parameters

Product Feature
With cold, wear, corrosion resistance, anti-magnetic insulation, self-lubricating, high-speed and other features.
Applications
Food processing machinery, medical equipment, cryogenic engineering, optics, high-speed machine tools, high-speed motor, printing machinery，etc.
Product Details
Deep groove ball bearings are bearing the most common type . Basic deep groove ball bearing is composed of an outer ring, an inner ring, a set of balls and a group holding structure into . Deep groove ball bearing type has two kinds of single and double row deep groove ball structure also split seal and open two structures, open means bearing structure without seal , sealed deep groove ball into dust seal and oil seal. Dust Gland Material steel stamping , just play simple to prevent dust from entering the bearing raceways . Oil- proof seal for the contact , which can effectively prevent the grease within the bearing spillover . Single row deep groove ball bearing type code 6 , double row deep groove ball bearing code is 4. Its structure is simple , easy to use , is the production of the most common , the most widely used class bearings. Deep groove ball bearings mainly take radial load , but also to support radial load and axial load. When the only radial load , the contact angle is zero. When the deep groove ball bearings with a larger radial clearance , the performance with angular contact bearings can bear large axial load , deep groove ball bearing friction coefficient is small , limit speed is also high.
The material properties of ZrO2 Bearing : Pure ZrO2 is white, with yellow or gray impurities , generally contain HfO2, easily separated . The world's proven resources of approximately 19 million tons of zirconium oxide, zirconium is usually caused by zirconium ores purification system. At atmospheric pressure pure ZrO2 There are three crystal : monoclinic (Monoclinic) zirconia (m-ZrO2), Quartet (Tetragonal) zirconia (t-ZrO2) and cubic (Cubic) zirconia (c-ZrO2), the three crystal type exist in different temperature ranges , and can be transformed into each other :
Zirconia forming: forming a zirconia ceramic dry pressing , isostatic pressing , slip casting , hot die casting , tape casting , injection molding, extrusion molding plastic , colloidal solidified molding. Which is the most widely used injection molding and dry pressing .
   Sintered zirconia : zirconia ceramic sintering method can be employed generally are: ⑴pressureless sintering , ⑵hot pressing sintering and reactive hot pressing sintering , ⑶hot isostatic pressing (HIP), ⑷microwave sintering , ⑸high pressure sintering, ⑹spark plasma sintering (SPS), ⑺situ compression molding and sintering . Often dominated by pressureless sintering .
Structural ceramics , zirconia ceramics as a high bending strength and high wear resistance , excellent thermal insulation properties, thermal expansion coefficient close to the steel, etc., it is widely used in the field of structural ceramics .