Needle roller bearings have a long track record as proven machine elements for the design of radially compact bearing arrangements with very high load-carrying capacity. In X-life configuration, they now have an up to 50 % longer service life. Needle roller and cage assemblies Needle roller and cage assemblies are single or double-row units comprising cages and needle rollers. As their radial design height only corresponds with the diameter of the needle rollers, needle roller and cage assemblies can be used to realize bearings with a minimal radial design envelope. They have high load carrying capacity, are suitable for high speeds and are particularly easy to fit. If the raceways are produced to high geometrical accuracy, bearing arrangements with high runout accuracy can be achieved. The radial internal clearance can be influenced by the needle roller sort as well as by the shaft and housing tolerances. Needle roller and cage assemblies require a hardened and ground raceway on the shaft and in the housing.
Технические характеристики
CharacteristicsRolling elementneedle rollerConfigurationradial, double-rowMaterialsteelInside diameter
Max.: 265 mm (10.43 in)
Min.: 3 mm (0.12 in)
Outside diameter
Max.: 280 mm (11.02 in)
Min.: 5 mm (0.2 in)
Width
Max.: 50 mm (1.969 in)
Min.: 7 mm (0.276 in)
