Mecechanical belt / Mecechanical belt

Mechanical belt breakage is not instantaneous ,but there is a growing crack process. Mechanical rotation will produce friction with belt, after the damage to a certain degree, the belt will break,but this process often does not cause people's attention. This design was divided into blocks of different color belt, from black to red to remind people the wastage of the leather belt and remind people to replace belt, which reduces belt fault to give people unnecessary harm.