Needle roller bearings are used in motorcycle engine components such as crankshafts and camshafts. With their small cross-sectional size, they can withstand high radial loads in a limited space, ensuring stable engine operation. In the gearbox, needle roller bearings help to achieve precise meshing and rotation of gears, reduce friction and wear, and improve transmission efficiency. In the suspension system, needle roller bearings make the movement of components such as shock absorbers more flexible, enhancing the comfort and handling of motorcycle driving. In addition, needle roller bearings also play an important role in the steering mechanism and other parts of motorcycles, ensuring smooth and accurate vehicle steering and assisting in the overall improvement of motorcycle performance.