PC300 Excavator Undercarriage Parts Drive Sprocket Komatsu 21w-27-11111

21W - 27 - 11111 Excavator Sprocket Black Forging casting PC60

Method purpose

It is attached to the final drive motor so that when the drive motor and the sprocket rotate as well. Its teeth then mesh with the links on the track and make the track move. Much like a sprocket on a bicycle catches the chain, causing the wheels to turn.

How to prevent wear?

One of the most important ways to prevent premature star wear is to check the track tension. Too much tension will wear the sprocket wheel teeth. Keeping the undercarriage clean is also important as the condition of the undercarriage can affect the tension on the tracks. Especially in cases of dried mud and debris.

Without a working excavator drive sprocket, the track drive will not be able to propel the machine. Drive sprockets must be replaced before it begins to wear the tracks or affect the performance of the final drive.

Model table

Signs of Sprocket Wear

The teeth on a drive sprocket are where you look for wear. They should be tall and flat at the end, not sharp or dished at the end. And the sprocket, and more specifically its teeth, begin to wear, its diameter becomes smaller. This causes what is known as a pitch mismatch, where the teeth on the sprocket no longer interact with the track links as effectively. This can accelerate the wear of the sprocket and reduce the efficiency of your equipment.

If your sprocket shows sign of excessive wear, then its time to replace it before it starts to cause abnormal track wear or begins to negatively affect the performance of your final drive motor.

About Jinweixin Excavator Parts

Guangzhou Jinweixin Excavator Parts Co., Ltd. we’re more than just a machinery parts supplier.Don't get us wrong, we are the top supplier for excavator parts, construction machinery parts, earthmoving machinery parts, heavy-duty machinery parts, forestry equipment parts, heavy-duty tractor parts, backhoe parts, and much, much more.However, we're not an impersonal supplier company or just another link in the chain of excavator parts industry.Instead, we’re a team of passionate people who are dedicated to providing the top aftermarket machinery resources for our customers at the most competitive pricing. We not only supply the best quality replacement and aftermarket parts, but we also conduct our technical research and development so you can rest assured that your purchase is excellent quality.

With over twenty years of experience in machinery production, we have the industry knowledge and connections that you need for quick, quality service!

We supply all types of excavator parts, from travel motor,Excavator Undercarriage Parts，travel gearbox and engine parts to hydraulic pumps, final drives, and turbochargers. Our parts are created for a variety of machines from excavators to bulldozers! Our well-trained team of customer service professionals are experts in the industry and can give you the information you need to make your next purchase.