If the gear wear or the wear on both sides of the tooth end exceeds the limit, one or more layers of metal can be surfacing on the whole or part of the gear surface according to the gear damage. The welding repair of gears can be divided into electric welding and gas welding.

For gears with small load and low speed, after individual gear teeth are knocked out, when repairing, the root of the bad gear is planed out of the trapezoidal groove on the planer, and the new gear blank with the same groove shape is pressed in with a certain tightness, welded firmly or bolted, and processed and formed.

Brief introduction of motorcycle

Motorcycle is a kind of two-wheeled or three-wheeled vehicle driven by gasoline engine and controlled by handlebar, which is light, flexible and fast. Widely used in patrol, passenger and freight transportation, etc. It is also used as sports equipment. Generally speaking, motorcycles are divided into street cars, road racing cars, cross-country motorcycles, cruise cars, station wagons and so on.

1885, German gottlieb daimler installed an engine on a machine, and the world's first motorcycle was born. Motorcycle-related motorcycle sport is a military sport and a competitive sport with motorcycles as equipment. It is divided into two-wheel and three-wheel models, and each model is divided into several grades according to the working volume of the engine cylinder.