Bearings
1 Properties of full ceramic materials
Ceramic Bearings including components made from ceramic have the special properties that steel bearings do not have such as being non-magnetic or insulating. They can be used in new applications where conventional bearings have not been practical.
Ceramic Bearings are highly heat resistant enabling a rolling bearing to be practical in a high temperature environment. The low density of ceramic decreases the centrifugal force induced by rolling elements (balls or rollers) contributing to an increased speed of the apparatus.
2 Structure of full ceramic Bearings
Full ceramic (All-ceramic) bearing of ZrO2 material
Full ceramic bearing have excellence performance as special electrical and magnetism resistance wear and corrosion resistance lubrication and maintenance free when working especially high and low- temperature application .etc. could be used in awful environment and specially condition. The rings and balls made by full ceramic material: ZrO2 as a standard construction the cage made by PTFE.
3 Application of full ceramic Bearings
Based on the characteristics comparison between various types of ceramic materials and the test results for their withstand loads these materials were evaluated from the viewpoint of their suitability for bearings. The results are as shown in Table.