Ceramic bearings as an important machine parts , with a metal bearing incomparable excellent performance. Ceramic bearings has the alibity to resistance to high temperature , super strength and other characteristics.
In the world of the specific characteristics of new materials . Over the past decade , in various fields has been widely used.
First , ceramic afraid of corrosion , ceramic bearings suitable for corrosive media harsh operating conditions .
Second, the ceramic rolling ball lower density than steel , more weight is much lighter , so rotating the outer ring of the centrifugal effect can be reduced 40% , thus greatly extended service life .
Third, the impact of the ceramic by thermal expansion and contraction than steel small, and therefore when the bearing clearance must be allowed to bearing more severe temperature changes in the work environment .
Fourth , the elastic modulus of the ceramic steel high , not easily deformed by the force , it is beneficial to increase the working speed , and to achieve high accuracy .
Ceramic bearings with high temperature, cold , abrasion , corrosion , anti- magnetic insulation, self-lubricating oil , high- speed and other features . Can be used in extremely harsh environments and special conditions , can be widely used in aviation , aerospace, marine , petroleum, chemical, automotive, electronics, metallurgy , electric power, textile, pumps , medical equipment , scientific research and national defense and military fields , is the application of new materials, high-tech products .
Ceramic bearing rings and rolling all- ceramic materials, zirconium oxide (ZrO2), silicon nitride (Si3N4), silicon carbide (Sic) three. Holder PTFE , nylon 66 , polyether imide , zirconium oxide , silicon nitride , stainless steel or special aviation aluminum, thereby expanding the surface of the ceramic bearing applications .
Applications: medical equipment, cryogenic engineering , optics , high-speed machine tools, high-speed motor , printing machinery , food processing machinery.
In the aerospace, marine, nuclear industry , petroleum, chemical , textile industry , machinery, metallurgy , electric power , food, locomotives, subway , high-speed machine tools and research areas such as defense and military technology requires high temperature , high-speed , cryogenic , flammable, explosive, strong corrosion, vacuum , electrical insulation , non-magnetic , dry friction , and other special conditions of work , ceramic bearings integral substitution being people gradually understanding .
With the processing technology continues to progress, the increasing level of technology , declining cost of ceramic bearings have been from the past only in some high precision and advanced within the field of small-scale applications , and gradually extended to the national economy in various industrial fields, the market price gradually approaching practical to achieve an acceptable level users , ceramic bearings wave of large-scale applications have been coming !