The four main types of bearings are ball bearings, roller bearings, plain bearings, and thrust bearings. Each type is designed to address specific load-bearing requirements and operational conditions in various machines and equipment across different industries.

It's important to note that while thrust ball bearings have these limitations, they are still valuable components in many applications where axial load support is the primary requirement. Understanding these disadvantages allows engineers and designers to make informed decisions when selecting bearings for specific applications, ensuring that the chosen bearings align with the operational demands and load conditions.

In summary, the key difference between spherical roller bearings and cylindrical roller bearings lies in their design, load-carrying capabilities, and suitability for specific applications. Each type of bearing is tailored to meet distinct operational requirements and environmental conditions in diverse industrial applications.

   - Spherical Roller Bearings: Spherical roller bearings are specifically designed to accommodate misalignment and shaft deflection, making them suitable for applications where alignment issues are common or where the bearing may be subjected to dynamic or oscillating loads.

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.