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Ceramic bearings

Type of ceramic bearings
 
The ceramic bearing structural composition is divided into: full ceramic bearings and combination ceramic bearings. Full ceramic bearings are pointed at inner and outer rings, rolling elements and cage components are ceramic bearings. In its entirety is the use of zirconium oxide (ZrO2), silicon nitride (Si3N4), silicon carbide (SiC), alumina (Al2O3) ceramic materials, and manufactured according to user needs. The selection of all-ceramic bearing cage, the user can be determined as required by national standards.
 
Ceramic ball bearings, the inner insulating ceramic bearings and external insulation ceramic bearings collectively referred to as the combination ceramic bearings, its meaning is: In addition to rolling body is zirconia (ZrO2), silicon carbide (SiC), silicon nitride (Si3N4), alumina ( Al2O3) ceramic material, the inner or outer ring of the bearing is manufactured using a metal or a ceramic material according to user needs.
 
Ceramic bearings cooperation
 
·         Magnitudes of interference
 
The inner ring and outer ring of rolling bearing is fixed on shaft or bearing box, the mating face of the ferrule, shaft or bearing housing does not occur relative movement on direction of radial and axial when it is loaded , Because the relative motion of the mating surfaces will wear, friction, corrosion or friction cracks, as well as causing damage of bearings, shaft and bearing housing, and then wear flour mixed with the bearing, become dysfunctional, abnormal heat or vibration.
 
Fixed bearing: the mating surfaces of the ring and shaft or bearing housing set aside the amount of interference with static. The mating ferrule the thin-walled load evenly distributed circumferentially, without affecting the load bearing capacity.
 
However, using the stationary fit, in addition to the installation and removal bearings is not convenient, free side bearings with release bearing, unable to move axially, and cannot be used for all occasions.

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