Needle roller bearings are roller bearings with cylindrical rollers, which are thin and long relative to their diameter. This roller is called a needle roller. Despite their small cross-section, bearings have a high load carrying capacity, needle roller bearings are fitted with thin and long rollers so they have a compact radial structure, and their inner diameter size and load capacity are the same as other types of bearings, with the smallest outer diameter, especially suitable for support structures with limited radial mounting dimensions.
According to different occasions of use, bearings without inner rings or needle rollers and cage assemblies can be selected, at this time the journal surface and shell bore surface matching the bearing are directly used as the inner and outer rolling surfaces of the bearing, in order to ensure that the load capacity and running performance are the same as the ringed bearings, the hardness, processing accuracy and surface quality of the shaft or housing bore raceway surface should be similar to the raceway of the bearing ring. These bearings can only accommodate radial loads.
What it means Roller bearings with cylindrical rollers
Features The rollers are both thin and long
Uses: widely used in machine tools, metallurgical machinery, textile machinery and printing machinery, various mechanical equipment
