What is the difference between needle roller bearings and cylindrical bearingsIssuing time:2021-09-27 17:57 Needle roller bearings are equipped with thin and long rollers(ROLLER DIAMETERD≤5mm,L/D≥2.5,LFor roller length),Therefore, the radial structure is compact, with the same inner diameter size and load capacity as other types of bearings, and a small outer diameter, making it particularly suitable for support results with limited radial installation dimensions. According to different usage scenarios, bearings without inner rings or needle rollers and cage components can be selected. At this time, the journal surface and outer shell hole surface that match the bearing are directly used as the inner and outer rolling surfaces of the bearing. To ensure the same load capacity and operating performance as bearings with ring rings, the hardness, processing accuracy, and surface quality of the shaft or outer shell hole raceway surface should be similar to those of the bearing ring raceway. This type of bearing can only withstand radial loads. |