Ceramic bearings

Through performance comparison among these four common bearing steel  materials, AISI52100 (GCr15), stainless steel AISI440 (9Cr18), silicon nitride (Si3N4) and zirconia (ZrO2) , Ceramic bearings plays an important mechanical foundation, because its  uncomparable performance, such as high temperature resistance, super strength,  takes  as a leading material in the new material Area. In the past 10 years, it has been increasingly used in various fields of national economy and people's livelihood.

Advantages

First,  ceramic won't be rusted, ceramic rolling bearings are suitable for operation under harsh conditions covered with corrosive media.

Second,  the density of ceramic rolling  balls is lower than steel and the weight is lighter , the centrifugal effect of the outer ring during rotation can be reduced by 40%, therefore their using life are greatly extended.

Third, ceramics are less affected by thermal expansion and contraction than steel, it is allowed to work in an environment where the temperature difference changes sharply when the clearance of the bearing is fixed.

Fourth,  the elastic modulus of ceramics is higher than that of steel, it is not easy to deform when stressed, so it is helpful to increase the working speed and achieve higher accuracy.

The main purpose

Ceramic bearings have the characteristics of high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic electrical insulation, oil-free self-lubrication, high speed and so on. It can be used in extremely harsh environments and special working conditions. It is widely used in aviation, aerospace, nautical, petroleum, chemical, automotive, electronic equipment, metallurgy, electric power, textile, pumps, medical equipment, scientific research, defense and military fields,and it is the high-tech products in the using of new material.

The rings and rolling elements of ceramic bearings are made of all-ceramic materials,they are  zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (Sic). The retainer is made of polytetrafluoroethylene, nylon 66, polyetherimide, zirconia, silicon nitride, stainless steel or special aviation aluminum, thereby expanding the application area of ceramic bearings.

Application field

Medical equipment, low temperature engineering, optical instruments, high-speed machine tools, high-speed motors, printing machinery, food processing machinery.

EFG BEARINGS (XIAMEN) CO., LTD.

Operation Center: 3F,No.169 Hongtangtou 1st Road,Xike Town,Tong'an District,Xiamen 

Service Hotline: 400-812-9698 | 0086-592-5759320 

E-mail: xmlz@efgbearings.com