Union Trade Tech. Co.,Ltd

A needle bearing is a roller bearing with cylindrical rollers, which are both thin and long relative to their diameter. These rollers are called needleers. Despite their small cross-section, the bearings still have a high load-bearing capacity. Needle bearings are equipped with thin and long rollers (roller diameter D 5mm, L/D ≥ 2.5, L is the roller length), so the radial structure is compact. When the inner diameter size and load capacity the same as other types of bearings, the outer diameter is the smallest, which is especially suitable for supporting structures with limited radial installation size.

Depending on the application, bearings an inner ring or needle and cage assembly can be selected. In this case, the surface of the shaft journal mating with the bearing and the surface of the housing hole are directly as the inner and outer rolling surfaces of the bearing. To ensure the same load capacity and running performance as bearings with rings, the hardness, machining accuracy, and surface quality the raceway surface of the shaft or housing hole should be similar to those of the bearing rings. This type of bearing can only bear radial loads.

Our company produces and sells full range of needle bearings with good quality. For detailed information about this type of bearing, please feel free to contact us at bin.yao@uniontradetech..