Ketten- und Ritzelverschleiß: Unterschied zwischen den Versionen

The video below gives examples of new and old chains running on new and old sprockets, and informs the discussion which follows.

Due to the slope of the tooth surface, chain tension is pulling the rollers outward, parallel to the tooth surface, as well as forward. Each roller can roll outward on the tooth surface, though with some internal friction. The roller which is about to disengage from the sprocket is held down by the link behind it, and so forth. Force which cannot be taken up by each roller is passed to the next roller, and so on, back around the sprocket -- in tension from each link pin to the previous one. The sum of all the forces which sprocket teeth apply to the rollers must be in the opposite direction from the chain pull, and in line with the chain.