Anatomy of Four-Point Contact Ball Bearings

Four-point contact ball bearings are a specialized type of angular contact ball bearings. They are designed to support axial loads in both directions, as well as radial loads, while still maintaining high levels of rotational speed and accuracy. The distinguishing feature of these bearings is their geometry, which allows for contact between the inner and outer rings at four points. This design results in improved load distribution and rigidity compared to standard radial ball bearings.

The inner and outer rings have a unique raceway profile, ensuring that the bearings can accommodate axial loads from both directions. The ball cage separates and guides the balls, maintaining their proper spacing and alignment, which is crucial for smooth operation.