Double row cylindrical roller bearings

The rollers in cylindrical roller bearings are typically guided by two flanges on one bearing ring. The cage, rollers and guiding ring form an integral unit that can be separated by the other bearing ring; these are therefore classified as separable bearings. Such bearings are relatively easy to install and disassemble, and their advantages are particularly evident when interference fits are required between the inner and outer rings and the shaft or housing These bearings are generally used only to support purely radial loads; only single-row bearings with flanges on both the inner and outer rings can withstand small fixed axial loads or large free axial loads. Compared with deep-groove ball bearings of the same external dimensions, these bearings have a higher radial load capacity. However, they place higher demands on the machining accuracy of related components, such as the shafts and housing bores, that mate with them.