N203 TO N 228 , >> N 304 TO N 326, >> NJ 205 TO NJ 248, >> NJ 303 TO NJ 336, >> NJ 2203 TO NJ 2230, >> NJ 2304 TO NJ 2336, >> NJ 406 TO NJ 414
These are the simplest of the roller bearings family. These bearings can face the challenges of heavy radial loading and high speed. They also offer excellent stiffness, axial load transmission, low friction, and long service duration.
The load capacity can be increased further by obviating the use of cages or retainers that are usually in place to hold the cylindrical rollers. This permits the fitting of more rollers to carry the load.
They are available as single-direction or double-direction bearings and the selection relies on whether the load is unidirectional or bidirectional.
Split variants are used for areas that are difficult to access such as engine crankshafts. In sealed variants, the bearing contamination is prevented and the lubricant is retained making it a maintenance-free option.