High-Performance Si3N4 Ceramic Ball Bearing

Properties of Si3N4 Ceramic Ball Bearing

1. Elevated Limit Speed
   The density of silicon nitride ceramic bearings is just 40% of steel, significantly reducing centrifugal force during operation. This allows for a substantially increased limit speed, making them ideal for high-speed applications.

2. Precision Engineering
   With a hardness and Young's modulus far superior to steel, silicon nitride ceramic bearings exhibit minimal mechanical deformation under load. This ensures high precision and makes them suitable for applications demanding rigorous accuracy.

3. Extended Service Life
   Silicon nitride ceramic bearings are lightweight, reducing operational centrifugal force and raceway load. Coupled with their low friction coefficient and minimal temperature rise during use, these bearings experience less wear, resulting in a service life exceeding five times that of steel bearings.

4. Broad Temperature Range Adaptability
   Silicon nitride maintains stable performance across a wide range of temperatures, with a minimal coefficient of thermal expansion. This ensures that bearing clearance is less affected by temperature changes compared to steel bearings, enabling their use in extreme temperature environments.

5. Lubrication-Free Operation
   Thanks to their self-lubricating properties, silicon nitride ceramic bearings typically require no lubricating oil or grease. This makes them perfect for high vacuum and high cleanliness applications, avoiding contamination from lubricants.

6. Chemical Corrosion Resistance
   Silicon nitride bearings exhibit excellent resistance to acids, alkalis, and other chemical agents. This corrosion resistance makes them ideal for use in harsh chemical environments.

7. Non-Magnetic Characteristics
   As a non-magnetic material, silicon nitride ceramic bearings do not attract magnetic matter or abrasive particles, which can reduce abrasive wear. This non-magnetic property ensures smoother operation and longer bearing life in applications where magnetism is a concern.

Applications of Si3N4 Ceramic Ball Bearing

1. Chemical Industry: Corrosion Resistance
   The Si3N4 ball bearing excels in corrosion resistance, making it a preferred choice for liquid and gas conveying equipment in the chemical industry. Its robust performance in corrosive environments ensures reliable operation in applications like pickling machines and chemical pumps, significantly extending equipment lifespan and minimizing downtime.

2. Electronics Industry: Precision and Lightweight
   In the electronics industry, the Si3N4 ball bearing stands out for its low friction coefficient and lightweight design. It is ideal for precision machining equipment and electronic components, including chip manufacturing devices, hard disk motors, and high-precision machine tools. This enhances accuracy and reduces energy consumption, contributing to higher productivity and efficiency.

3. Machinery Industry: Durability and Cost Savings
   The machinery industry benefits greatly from the Si3N4 ball bearing's high compressive strength, good toughness, and exceptional wear resistance. Its use in high-speed motors, hydraulic pumps, precision machine tools, wind turbines, and high-speed trains ensures long service life and stability, reducing equipment maintenance costs and downtime.

4. Aerospace Industry: Performance Under Extreme Conditions
   In the aerospace industry, the Si3N4 ball bearing is indispensable due to its non-magnetic properties, good electrical insulation, high temperature resistance, high rigidity, and wear resistance. It is crucial in applications like aircraft engines, gyroscopes, and inertial measurement devices, where reliability and performance under extreme conditions are paramount.

5. Metallurgy and High-Temperature Environments: Thermal Stability
   The Si3N4 ball bearing's resistance to high temperatures and thermal shock makes it ideal for use in metallurgical processes, rubber and plastic production equipment, and other high-temperature environments. Its ability to maintain performance under extreme thermal conditions ensures reliable operation and extends the lifespan of equipment in these demanding applications.

Size Chart of Si3N4 Ceramic Ball Bearing

Please provide drawing and parameter requirements for customization.