Needle roller bearing is a roller bearing with cylindrical roller. The roller is thin and long relative to its diameter. This kind of roller is called needle roller. According to the inquiry of the needle bearing model table, the needle bearings include: needle bearing without inner ring, needle bearing with inner ring, needle bearing with stamping outer ring and fully loaded needle bearing. According to the different types of needle bearing, xinbohao tells you about the specific situation of different types of needle bearing installation methods according to the understanding of bearing installation methods.
Warm tips: needle roller bearing has a large bearing capacity and is suitable for supporting structures with limited installation size. The journal surface is hardened as a rolling surface, and the bearing is installed into the seat hole with a press-fit, so there is no need for axial positioning. The bearing should be injected with the proper amount of grease before installation. Generally, it is unnecessary to lubricate after assembly. BK type bearing is used in the support of the journal without extension end. The end face is sealed and can withstand small axial swimming.