Silicon carbide (SiC) is an advanced ceramic material that is widely used in high-performance bearings, semiconductor equipment, chemical machinery and new energy power systems due to its excellent physical and chemical properties. It not only improves equipment operating efficiency but also reduces maintenance costs, making it a key material for ensuring the stability of industrial production.
Silicon carbide has a hardness close to that of diamond, far exceeding that of traditional steel bearings. It can withstand long-term operation under high-speed rotation and high load without wear, maintaining the dimensional accuracy and operational stability of the bearing.
Silicon carbide bearings are virtually unaffected by corrosion in acidic, alkaline, and organic solvent environments, making them suitable for use in chemical, electronics, and pharmaceutical industries and significantly extending equipment lifespan.
With a smooth surface and low coefficient of friction, it can effectively reduce operating heat generation and energy consumption, reduce lubricant consumption, and lower maintenance costs.
It can work for a long time in environments with temperatures up to 300°C and supports high-speed rotation applications, ensuring that the equipment can operate continuously and efficiently without thermal deformation or performance degradation.
The precision machining and self-lubricating properties of silicon carbide materials result in low vibration and low noise in bearings during high-speed operation, improving the comfort and precision of equipment operation.
Manufactured from premium ZrO₂ powder
Ensures smooth surface finish and dimensional accuracy
Guarantees reliable performance and long service life
Bearings designed to meet specific industrial needs
A silicon nitride bearing is a bearing made partially or entirely from silicon nitride (Si₃N₄) ceramic, an advanced engineering material known for its high strength, low density, and excellent thermal and chemical stability. These bearings are commonly used in high-speed, high-temperature, and harsh environments where traditional steel bearings may fail.
Yes. Silicon nitride bearings can operate with minimal or no lubrication in certain conditions due to their low friction coefficient and self-lubricating characteristics. This makes them especially suitable for vacuum systems, cleanroom equipment, and food or pharmaceutical machinery where lubrication is restricted.
Silicon nitride maintains excellent mechanical strength and dimensional stability at temperatures exceeding 300°C. Its low thermal expansion coefficient reduces thermal stress, ensuring reliable performance in high-temperature furnaces, aerospace components, and energy systems.
Yes. The high surface finish, low friction, and material stiffness of silicon nitride result in lower vibration levels and reduced operating noise, which is particularly beneficial for precision instruments, medical devices, and electric motors.
Under proper operating conditions, silicon nitride bearings can last several times longer than conventional steel bearings, especially in high-speed, high-temperature, or corrosive environments. Their resistance to wear, fatigue, and corrosion significantly extends service life.
Hybrid ceramic bearings use silicon nitride balls with steel rings. They combine the toughness of steel with the performance benefits of ceramic balls and are widely used in industrial and motor applications. Full ceramic bearings use silicon nitride for both balls and rings. They provide maximum corrosion resistance and can operate without lubrication, making them ideal for vacuum, chemical, and cleanroom environments.
Absolutely. Thanks to their low density and high stiffness, silicon nitride bearings generate less centrifugal force at high speeds. This allows for higher RPM capability, reduced vibration, and improved dynamic stability, making them ideal for high-speed motors, spindles, and precision machinery.
Yes. Silicon nitride is chemically inert and highly resistant to acids, alkalis, moisture, and most solvents. Unlike steel bearings, it does not rust, making it suitable for chemical processing, marine equipment, and humid or corrosive environments.
The initial cost of silicon nitride bearings is generally higher than steel bearings. However, their longer lifespan, reduced maintenance, lower energy consumption, and improved reliability often result in a lower total cost of ownership over the equipment’s operating life.
In many applications, yes. Silicon nitride bearings are available in standard bearing sizes and can often be used as drop-in replacements. However, for extreme loads or impact-prone applications, professional selection guidance is recommended to ensure optimal performance.
