The tune roller bearings are a key part of the mechanical equipment today. Its key effect is the workpiece of the fulcrum industrial equipment rotation, reducing the resistance of the whole process of sports and fitness, and ensuring its rotation accuracy.

According to the characteristics of sports fitness electronic devices, the rolling roller bearings can be divided into two categories: flip -hearted roller bearings and dragging roller bearings. Among them, the flipping roller bearing has long been standardized and integrated, but it is very large, and the price is high, and the price is high, and the price is also high. Flip -minded roller bearings are generally composed of four parts: both sides, internal threads, flipper, and ball -hearted roller bearings. According to the shape of the flipper, the rolling roller bearings are divided into two categories: ball -hearted roller bearings and roller heart roller bearings.