The flat belt is connected to the pulley surface by high friction with minimal energy loss. The service life of a flat belt is measured by the amount of bending and the size of the pulley diameter. If the design is reasonable, the service life is theoretically infinite.
The V-belt works by wedging, wedging into the groove and pulling out of the groove, causing energy loss and high wear. Wear associated with wedging limits service life. If the working environment is dusty, the service life is even more limited.
Flat belts are less noisy, as air is pushed out between the belt and pulley. Due to the way it works, flat belts remain almost completely clean and have limited wear during application.
V-belts, on the other hand, have a characteristic whistling sound when pushed in and out of the groove. This movement can cause belt and groove wear, limiting service life. Black rubber dust pollution is the result of this situation.
