What are the product names of ceramic bearings?
The product names of ceramic bearings include zirconia ceramic bearings, silicon nitride ceramic bearings, silicon carbide ceramic bearings, etc. The main materials of these bearings include zirconium oxide (ZrO2), silicon nitride (Si3N4), silicon carbide (SiC), etc., which have high hardness, high wear resistance, high temperature resistance, excellent mechanical properties and oxidation resistance.
Specifically, ceramic bearings are classified by material including:
Zirconia ceramic bearings: Bearing rings and rolling elements are made of zirconia (ZrO2) ceramic material. The retainer is usually made of polytetrafluoroethylene (PTFE). Special ones can also use glass fiber reinforced nylon 66 (RPA66-25), Special engineering plastics (PEEK, PI) or metal materials such as stainless steel (AISI SUS316) and brass (Cu).
Silicon nitride ceramic bearings: The bearing rings and rolling elements are made of silicon nitride (Si3N4). Compared with bearings made of ZrO2 material, they have higher speed and load capacity and can adapt to higher temperatures.
Silicon carbide ceramic bearings: Bearing rings and rolling elements are made of silicon carbide (SiC) material, which has excellent properties such as high hardness, wear resistance, rigidity and low friction.
In addition, ceramic bearings are classified according to structure:
All-ceramic bearings: The rings and rolling elements are all made of ceramic materials. There are many choices for cages, such as polytetrafluoroethylene (PTFE), nylon 66, polyetherimide (PEEK), polyimide (PI), Stainless steel or special aviation aluminum, etc.
Hybrid ceramic bearings: The rings are made of metal materials such as bearing steel or stainless steel, and the rolling elements are ceramic balls. They have excellent properties such as low density, high hardness, wear resistance, rigidity and low friction, and their service life is greatly extended.
Ceramic bearings are classified according to their uses:
High-speed bearings: Mainly used in high-speed and high-precision equipment, they have small elasticity, high pressure resistance, light weight, and can withstand a wide temperature range.
High temperature resistant bearings: used in high temperature equipment, can withstand high temperatures of 1200°C, and have good self-lubricating properties.
Corrosion-resistant bearings: Used in working environments that need to deal with extremely harsh media such as strong acids and alkalis, organic mixtures, or seawater.
Antimagnetic bearings: non-magnetic, used in demagnetization equipment, precision instruments and other equipment to effectively prevent arc breakdown of parts.
Electrically insulated bearings: High resistivity, effectively preventing arc breakdown of components, and are often used in power equipment.
Vacuum bearings: have good self-lubricating properties and are used in ultra-high vacuum environments.
