PC200-6 PC200-7 Excavator Final Drive Sprocket 20Y-27-11582

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How Drive Sprockets Work

The drive sprocket is connected to the final drive motor (aka track drive), so when the drive motor turns, the sprocket turns too. As the sprocket turns, its teeth engage with the track links, allowing the track to move in a continuous loop—just like the sprocket on a bicycle engages the chain to turn the wheel. The teeth of the drive sprocket act much like gear teeth when they mesh with the track, but if you examine the teeth closely, you’ll see that they don’t look like standard gear teeth

How Drive Sprockets are Attached

The sprockets are one piece for small machines such as small track loaders and mini excavators. The sprocket is usually split into two segments on larger machines, such as full-size bulldozers. This makes it easier to remove/install the sprocket. In either case, the sprocket is bolted to the final drive motor, and since the number of bolt holes on the sprocket can vary, it’s a good idea to check the number of bolt holes on the sprocket matches the number of bolt holes on the track drive motor. The bolt holes match. Failure to do so will mean ordering the wrong final drive track motor.

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