Silicon Carbide ceramic balls retain some performance relative to metal material as follows,so it has been the primarily choice of ceramic bearing: 

1,High rigidity,high strength,more harder.

2,High corrosion resistance, this means they can be also used in strong acid、strong alkali .

3,High temperature resistance. SiC ceramic balls can be used up to 1500 ℃. 

4,Non-magnetic.

5, Low density(3.2 g/cm3), it is approximately 60% lighter than steel balls, running more quieter and more long live time.

6, Low coefficient of thermal expansion(3.2×10-6/K), it is nearly 1/4 of the chrome steel, which leads to a good thermal shock resistance of SiC ceramic. 

7, The self-lubrication of SiC ceramic roller bearings makes it can be used in vacuum and high temperature conditions without lubrication.

8, High resistance to chemical corrosion, high mechanical strength and low thermal conductivity. Application fields：high precision ceramic bearings, high temperature bearings, vacuum bearings, ceramic valve ball and so on.

Size: Φ3.175～Φ25.4(mm)

Grade:G16,G20,G40,G100…