Plain Bearings: Also known as bushings or sleeve bearings, plain bearings consist of a simple cylindrical design without rolling elements. They rely on a sliding motion to reduce friction and are often used in low-speed, high-load applications such as in agricultural machinery, construction equipment, and industrial machinery. Plain bearings are valued for their ability to handle heavy loads and operate in harsh environments.

   - Cylindrical Roller Bearings: Cylindrical roller bearings consist of cylindrical rollers held in place by inner and outer rings, with the rollers positioned parallel to the axis of the bearing. They are designed to primarily support radial loads and provide high rigidity and precision.

In summary, angular contact ball bearings are precision bearings designed to support combined radial and axial loads, provide high precision and rigidity, accommodate axial loads in one direction, operate at high speeds, and offer versatility for various industrial applications.

The companies plan to invest heavily in research and development to bring the new materials to market as quickly as possible. They also plan to work closely with customers to ensure that the new materials meet their specific needs and requirements.