High Hardness Precision Ceramic Balls Si3N4 Ceramic Precision Balls High Temperature Resistant

High Precision Si3N4 Ceramic Ball Silicon Nitride Bearing Balls

Silicon nitride ceramic ball is a precision ceramic ball made of silicon nitride powder as raw material and refined at high temperature. It has high strength, good wear resistance, high temperature resistance, good corrosion resistance, light weight, density of only 3.2g/cm3, less than half of steel, and can achieve high-speed operation. 

Key Characteristics & Benefits:

High limit speed:
Silicon nitride ceramic density is only 40% of steel, so using silicon nitride balls as bearing balls can reduce the centrifugal force and increase the limit speed.

Longer service life:
The silicon nitride ceramic ball has light weight, smaller centrifugal force of bearing operation, low load of raceway, and small friction coefficient, so it has less wear and longer service life, which is more than 5 times that of steel ball bearings.

Wide temperature range:
Silicon nitride ceramic ball is resistant to high temperature, and the coefficient of thermal expansion is small, so the bearing clearance is less affected by temperature changes than steel bearings, therefore silicon nitride ball bearing can be used in a wider temperature range.

No lubrication:
Silicon nitride ceramic ball has self-lubricating characteristics, usually no need to add lubricating oil or grease, so it can be applied to high vacuum and high cleanliness occasions, to avoid lubricating grease pollution.

Corrosion resistance:
Silicon nitride ceramic ball has good resistance to acid, alkali and other chemical corrosion performance, it can be used in chemical corrosion occasions.

Common Applications:

Silicon nitride ceramic ball has good wear resistance, no magnetic, good electrical insulation, acid and alkali corrosion resistance, self-lubrication, small friction coefficient, light weight, high temperature resistance, it can be used as rolling ball of bearing, and is widely used in high precision machinery, chemical industry, electronics, medical, high temperature environment, metallurgy, aerospace and other industries to ensure stable operation and long service life of equipment, also reduce maintenance costs.

Hybrid Bearings: Used heavily in industrial machinery, electric vehicle (EV) motors, wind turbines, and high-end bicycles.
Valves and Pumps: Deployed in environments requiring handling of corrosive chemicals or abrasive fluids.
Flow Meters: Used in instruments where magnetic interference from steel balls would disrupt readings.