US Synthetic Bearings Site


Learn more about

PCD Bearings for Combined Radial and Thrust Loads

Some loading scenarios may require bearings that sustain both thrust and radial loads. Our bearings for combined loads are custom designed for each application. Polycrystalline Diamond bearings can be manufactured by US Synthetic Bearings to meet these requirements.

PCD Bearings for Combined Radial and Thrust Loads

PCD Bearings for Radial Loads

radial bearing

Polycrystalline Diamond (PCD) radial bearings are comprised of a series of PCD inserts assembled (usually by brazing) in carrier rings. A typical PCD radial bearing set includes a rotating and stationary bearing ring. These two rings oppose each other with the PCD surface on the inside diameter of one ring in direct contact with the PCD surface on the outside diameter of the mating ring.

US Synthetic Bearings prides itself in its ability to precisely shape polycrystalline diamond. This has allowed Bearings to provide PCD radial bearings that have accurate diameters, tight clearance tolerances, and ultra-fine surface finishes.

During operation, the PCD surfaces of the rotating and stationary rings rub against each other. This rubbing contact exhibits very low friction (typically between 0.05 and 0.07).

The ultra-high hardness and strength of PCD allows USS Bearings' radial bearings to sustain very high loads during operation. In addition, they wear at a very low rate, resulting in the PCD bearings lasting from 1000 hours to many years, depending on the application. These PCD inserts also utilize the highest quality steel grade available.

PCD radial bearings are ideally suited for process-fluid-lubricated applications, particularly those where abrasive particles are present in the fluid. The PCD surfaces maintain their geometry and exhibit minimal wear in the presence of these abrasive-laden fluids.

US Synthetic Bearings' radial bearings are custom designed for each application. The Bearings' engineering team can create a specific design for your application and provide performance estimates for its bearings in that application. Contact us for more information.