The primary function of a bearing is to enable the controlled transfer of loads and motion while minimizing friction and wear. Bearings achieve this through the use of rolling elements, such as balls or rollers, or through sliding surfaces, depending on the specific type of bearing. By doing so, bearings help to maintain the integrity and alignment of rotating shafts, axles, and other mechanical components, ensuring smooth and efficient operation of the machinery.

Cylindrical roller bearings come in various configurations, including single row, double row, and multi-row designs, each offering specific load-carrying capabilities and operational characteristics. Additionally, some cylindrical roller bearings feature a full complement of rollers, while others have a cage or separator to maintain proper roller spacing and alignment.