Introduction
Cylindrical roller bearings consist of an outer ring, inner ring, cage and rollers. The cylindrical rollers (rolling elements) may be either solid or hollow. The diameter of each cylinder is not much smaller than the length of each cylinder, this prevents the bearings skewing under load.
Cylindrical roller bearings can carry high radial loads but they are not well suited to handling axial loads.
Additional Resources
https://www.emersonbearing.com/products/roller-bearings
https://en.wikipedia.org/wiki/Rolling-element_bearing
https://www.ritbearing.com/blog/archive/what-are-cylindrical-roller-bearings