Tapered Roller Bearing
It is a roller bearing with cylindrical rollers, and the rollers are both thin and long relative to their diameters. These rollers are called needle rollers. Despite having a smaller cross-section, the bearing still has a high load-bearing capacity. Needle roller bearings are equipped with thin and long rollers (roller diameter D ≤ 5mm, L/D ≥ 2.5, L is the length of the roller), so the radial structure is compact. When the inner diameter size and load capacity are the same as those of other types of bearings, the outer diameter is the smallest, and they are particularly suitable for supporting structures where the radial installation size is limited.