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Introduction of High Temp Ceramic Bearings-Si3N4 Material Type

135 Published by admin Jul 26,2023

High Temp ceramic bearings, due to their excellent performance compared to metal bearings.They are at the forefront of the new material world,in terms of high temperature resistance and super strength. In the past decade, it has been increasingly widely used in various fields and people's livelihood.
This article will briefly introduce the various structural deformations and advantages of Si3N4 materials.

High Temp Ceramic Bearings-full Si3N4 material

It's characteristics: anti magnetic and electrical insulation; wear and corrosion resistance, oil-free self-lubrication, high temperature and cold resistance,Hence, can be used in extremely harsh environments.Si3N4 ceramic bearings for high-speed and precision rigid spindles, their maximum manufacturing accuracy can reach P4 to UP levels. Silicon nitride is therefore recognized as the most ideal material for manufacturing bearings and their components. At present, silicon nitride bearings are mainly used in four aspects: ① high-speed bearings ② high-temperature bearings ③ vacuum bearings ④ corrosion bearings.

High Temp Ceramic Bearings-full balls without cage

The fully ball type has a notch on one side. Due to the non cage structure design, more balls can be loaded into the bearing than standard structures.Thereby improving its load capacity. In addition, it can avoid the limitations of cage materials and achieve better corrosion and temperature resistance.
This type is not suitable for higher speeds.Attention should be paid to installing the notch surface on the end that does not bear axial load.

high temp ceramic bearings full ball

High Temp Ceramic Bearings-hybrid ceramic(steel rings+ceramic balls)

Generally, the inner and outer rings are made of bearing steel (GCr15) or stainless steel (AISI440C), and ceramic balls can be made of ZrO2 or Si3N4 materials.
The hybrid ceramic bearing is corrosion-resistant and high-temperature resistant, and the inner and outer rings are made of metal steel material, ensuring the requirements of high speed.

high temp ceramic bearings hybrid