Non-standard needle roller bearings

    Needle roller bearings are roller bearings with cylindrical rollers. Relative to their diameter, the rollers are thin and long. This type of roller is called a needle roller. Despite its small 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 roller length), so the radial structure is compact. When its inner diameter size and load capacity are the same as other types of bearings, the outer diameter is the smallest, which is particularly suitable for support structures with limited radial installation dimensions.
     Depending on the application, bearings without inner rings or needle roller and cage assemblies can be selected. At this time, the journal surface and housing hole surface that match the bearing are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure that the load capacity and operating performance are the same as those of bearings with rings, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be similar to those of the raceway of the bearing ring. This type of bearing can only bear radial loads.
      This time, we produced and manufactured two customized needle roller bearings based on the drawings and parameters provided by the customer. These two bearings are different from existing products in terms of structure, retainer, needle roller, etc. Our advantage is that we can manufacture the products our customers need.