Needle roller bearings are widely used in the mechanical industry. In construction machinery, such as excavators, loaders, etc., needle roller bearings can be installed at joint parts and transmission components to withstand high loads and impacts, ensuring flexible operation of the equipment. In textile machinery, it is used for key components such as spindles and yarn guides. Due to its small size and high precision, it can meet the requirements of high-speed operation. In electric tools, needle roller bearings assist the stable operation of the motor shaft and transmission gear, improving the power transmission efficiency of the tool. Inside the machine tool equipment, needle roller bearings are installed on the spindle and feed system to ensure machining accuracy. In addition, in fields such as mining machinery and metallurgical equipment, needle roller bearings ensure reliable operation of equipment due to their advantages of high load-bearing capacity and low friction.