Ball bearing for unitsrings

Silicon nitride ceramic bearings are with the characteristics of high temperature, cold, abrasion, corrosion, anti-magnetic, insulating, oil-free self-lubricating, high speed and other characteristics. They can be used in extremely poor conditions and special conditions, and also widely used in aviation, aerospace, marine, petroleum, chemical, automotive, electronics, metallurgy, electric power, textile, pumps, medical equipment, scientific research and national defense and military fields. Silicon nitride ceramic bearings are the high technology products with the application of new type materials.