The Sprocket is the power transmission device for construction machinery excavators and bulldozers. On excavators, because the whole is cast processed, so it called “sprocket “. The bulldozer is called “sprocket segement”, because it is cast or forged into several separate pieces. The sprocket is generally directly connected to the driving motor, directly transmitting power to the track, thereby driving the entire chassis forward.
The material of the sprocket is mainly cast, but the excavator sprocket of high-power bulldozers is mainly forged. The product will withstand greater driving force to ensure product quality. Regardless of the material, the product must go through rough processing casting (forging), mechanical processing, tooth quenching and other processes. Finally handed over to customers for use.
The excavator sprocket are mainly cast products, and the material is generally ZG40Mn. The quenching hardness of the teeth is similar to that of bulldozers, HCR46-56, as the wheels are machined as a whole, the process is relatively simple, ensuring machining accuracy and dimensional accuracy.
