The fundamental purpose of bearings is to provide robust support for mechanical rotating entities, significantly minimizing friction during movement and ensuring impeccable rotational precision. Depending on the friction characteristics of moving components, bearings are categorized into two primary types: rolling bearings and sliding bearings. Rolling bearings, known for their standardization and serialization, tend to have larger radial dimensions, as well as greater levels of vibration and noise when compared to sliding bearings, and are generally more expensive. Typically, rolling bearings are composed of four integral parts: the outer ring, inner ring, rolling elements, and cage.
Engineered for applications that involve low-speed, heavy-duty operations and environments where lubrication and maintenance are challenging, joint bearings excel with their spherical sliding contact surfaces. They are particularly ideal for swinging, tilting, and rotational movements. The bearing seat, designed as a complementary component, holds significant importance in the shaft system. Generally, pins are meticulously placed at both ends of the bearing to offer essential support and stabilization, maintaining a precise positional relationship with other connected parts. Additionally, bearing seats usually come equipped with advanced sealing devices, offering exceptional protection against contamination.