Sprocket construction for a zero caternary chain

Details Sprocket construction for a zero caternary chain Sprocket construction for a zero caternary chain

F - Mech Eng,Light,Heat,Weapons

16

H

74/89

F16H 55/30 (2006.01)

Patent

CA 1192763

SPROCKET CONSTRUCTION FOR A ZERO CATERNARY CHAIN Abstract of the Disclosure A sprocket construction for a zero caternary chain. In a zero caternary chain, a tensioning system is utilized to prevent caternary or slack in the chain and as a result of the high degree of tensioning, the bushings of the chain ride against the roots of the sprocket teeth. To prevent erosion of the sprocket teeth and bushinys, the root diameter is modified to provide an enlarged operating pitch diameter for a predetermined increase in pitch length of the link. The pitch line clearance is enlarged so that it is equal to 2% to 25% of the working pitch diameter and produces a tooth angle of 20° to 40°.

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