1. Product Description: Four-point contact ball bearings are high-performance rolling bearings and one of the most common slewing bearing designs. Their core feature is their ability to achieve the load-bearing performance of double-row angular contact bearings with the compact structure of a single-row bearing. 2. Product Structure: The inner and outer rings of the bearings are integrally constructed, with a special raceway design. Each steel ball contacts the raceway at four points.