Single row cylindrical roller bearings with cage are units comprising solid inner and outer rings together with cylindrical roller and cage assemblies. The outer rings have rigid ribs on both sides or are without ribs, the inner rings have one or two rigid ribs or are designed without ribs. The cage prevents the cylindrical rollers coming into contact with each other during rolling. The cylindrical roller bearings are very rigid, can support high radial loads and, due to the cage, are suitable for higher speeds than the full complement designs. Bearings with suffix E have a larger roller set and are thus designed for extremely high load carrying capacity.. Supplier's & Distributor's The bearings can be taken apart and can therefore be fitted and dismantled more easily. Both bearing rings can therefore have an interference fit. Single row cylindrical roller bearings with cage are available as non-locating, semi-locating and locating bearings. Many sizes are supplied in X-life design. Bearings of X-life quality have a lower roughness Ra and superior geometrical accuracy of the raceways than comparable designs that are not X-life. As a result, the load carrying capacity and life of these bearings is higher while maintaining the same dimensions. In certain applications, a smaller design of bearing arrangement can therefore be used if necessary.