Low-backlash-high-torque power transmission system and...

Details Low-backlash-high-torque power transmission system and... Low-backlash-high-torque power transmission system and...

F - Mech Eng,Light,Heat,Weapons

16

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74/246

F16G 5/20 (2006.01) F16G 1/28 (2006.01) F16H 7/02 (2006.01)

Patent

CA 1211959

ABSTRACT A flexible power transmission belt having a plurality of teeth each of which has a pair of arcuate convex flank portions which in longitudinal cross-section closely approximate to an arc of a circle. Each tooth exhibits a height to width relationship within a predeter- mined range, and the arcuate flanks each have a pressure angle within a predetermined range. The belt is preferably used in combination with a toothed pulley whose teeth are substantially conjugate to the belt teeth and whose cavities between the teeth have a height to width relationship within another predetermined range and have concave flanks exhibiting a pressure angle in still another predetermined range, said belt tooth width being approxi- mately 0.98 of the pulley cavity width so as to provide a high torque positive drive power transmission system having minimum backlash.

438036

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