Hexoloy SA SiC is a pressureless, sintered form of alpha silicon carbide, with a density greater than 98 percent theoretical. It has a very fine grain structure (less than 10µm) for excellent wear resistance and contains no free silicon, which makes it highly chemically resistant in both oxidizing and reducing environments. These abilities coupled with excellent surface finish characteristics make it ideally suited to product lubricated bearing applications.

Hexoloy SP SiC is a sintered alpha silicon carbide material designed specifically for optimum performance in sliding contact applications such as product lubricated bearings. This material improves upon the exceptional corrosion and erosion resisting properties of Hexoloy SA SiC through the addition of unique spherical pores. These discrete, evenly dispersed pores act as fluid or lubricant reservoirs helping to promote the retention of a fluid film at the interface of sliding component surfaces.

Noralide® NBD-200 Hot Pressed Silicon Nitride (Si3N4) offers a combination of characteristics that make it an ideal material for bearings as well as for other applications where maximum fracture toughness and flexural strength are required. Hot-pressed for maximum strength and density, Noralide® Si3N4 provides better fracture resistance than other ceramic materials. It can easily be machined in a variety of shapes and worked to close tolerances.

Our application engineers can help you with design recommendations that allow for cost-effective Hexoloy SiC bearing solutions for your applications. Please contact us to discuss how Hexoloy SiC can benefit your bearing needs.

In thrust and journal bearings, wear can occur due to upset conditions, abrasive fluids, shaft deflections and general abuse, ultimately causing a complete failure of the bearing. Hexoloy SiC is an extremely hard and wear resistant material. Maximum tested PV (pressure - velocity) exceeds 1 million psi ft/min.

Hexoloy SiC exhibits excellent corrosion resistance over a broad range of pH values. It is chemically inert to strong oxidizers unlike tungsten carbide or reaction bonded silicon carbide. Hexoloy SiC outperforms tungsten carbide and aluminum oxide in all chemical categories.

Hexoloy SiC offers the optimal combination of mechanical and physical properties. The high strength and modulus of elasticity are complemented by low coefficient of thermal expansion and high thermal conductivity. This combination of properties allows the designer to build rigid, high load bearings while maintaining design clearances across a wide range of operating temperatures.

Saint-Gobain Ceramics offers vast resources to meet your needs for silicon carbide products. With representation in Asia by Norton KK (a Saint-Gobain company) and locations in Europe, Australia and South America, we can deliver your solution when you need it, where need you need it, in virtually every corner of the world.