China Nine Star’s Ceramic Hybrid Bearings

Nine Star’s ceramic hybrid bearings  are used around the world in demanding applications such as wind turbine generators, machine tool spindles, magnetic bearing backup applications, auto racing, ultracentrafuge systems, nuclear reactors and aerospace applications. Nine Star’s short lead times, application engineering support, highest quality manufactured ceramic balls and choice of specialty ring materials provides Engineering Services with an opportunity to provide unique ceramic hybrid bearing solutions.

Higher Speeds

The light weight associated with silicon nitride balls reduces the load applied due to centrifugal forces,

allowing for increase operational speeds

Greater Stiffness

A higher elastic modulus of silicon nitride over bearing steel results in a stiffer, more rigid bearing, which is

beneficial to high precision machine tools

Reduce Heat Generation

Low frictional characteristics of the silicon nitride ball results in lower heat generation and lower operating

temperatures.

Thermal Stability

With a lower thermal expansion than steel, the silicon nitride ball reduces the effects of thermal gradients

across the bearing thus reducing the risk of bearing seizure.

Corrosion Resistance

Excellent resistance to corrosive media allows for extended bearing life over standard steel balls.

Non-Conductive

Silicon nitride is a nonconductive material thus reducing the potential of current flow through the bearing

and the resulting electrical arcing or fluting damage that is associated with it.