Needle roller bearings are equipped with thin and long rollers, so the radial structure is compact, its inner diameter size andload capacity are the same as other types of bearings, the outer diameter is the smallest, especially suitable for radial
installation size limited bearing results. Bearings without inner rings or needle roller and cage components can be selected according to different use occasions. At this time, the journal surface and shell hole surface matching with bearings are directly used as the inner and outer rolling surfaces of bearings. In order to ensure the load capacity and running performance are the same as those of bearing with rings, the hardness, machining accuracy and surface quality of shaft or shell hole raceway surface should be similar to the raceway of bearing rings.
Regular Size As Below