Cylindrical Roller Bearings
Cylindrical Roller bearings are similar to Ball bearings except that the rolling elements are steel rollers instead of steel balls.
Most standard cylindrical roller bearings use a steel cage to properly space the rollers around the bearing. Special precision made cages are used for applications involving extreme operating conditions, such as high loads or speeds, shock loads or vibrations. Some cages are precision machined from steel or bronze, others stamped from brass and some are now being made from high impact plastics.
The surface of a cylindrical roller is not perfectly straight, but slightly “crowned”. This improves the distribution of stress due to loads and compensates for minor misalignment between rollers and raceways. Cylindrical Roller Bearings are manufactured to both metric and imperial dimensions.
Cylindrical Roller Bearings are divided into three distinct types, Separable inner ring, Separable outer ring and Non-Separable types. In order to save space, some applications may have an outer ring and cage assembly running directly on to the shaft in which case the shaft would have to be specially hardened to take the wear. An Inner ring and cage assembly could also be installed directly into a hardened housing. We stock our standard range Cylindrical Roller bearings as complete units, even if the components are separable.
The diagram below shows the main metric configuration types for single row and double row. Cylindrical bearings are also available in Imperial sizes.