Importance

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Abstract

A chain drive mechanism includes a chain extending around a drive sprocket and a driven sprocket for transmitting torque therebetween. The chain drive mechanism also includes a snubber including one or more guide shoes, each having an engagement surface that contacts a side of the chain between the drive sprocket and the driven sprocket. The engagement surface of the guide shoe defines a recess with an opening therein, with the recess configured to convey lubricant fluid, such as oil, from the chain and through the opening by motion of the chain along the engagement surface. The recess has a wedge shape including two side walls converging toward the opening, and a floor that slopes downwardly away from the engagement surface and toward the opening. The snubber includes one or more guide shoes that are inside, outside, or some combination of inside and outside of the chain.

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First Claim