Patent ID: 7108622
Filing Date: 2006-09-19
Classification: F16G,F16H

Abstract:
1. A roller chain transmission comprising: a roller chain including inner links, each comprising a pair of inner link plates, two bushings, ends of which fit into bushing holes formed in said inner link plates with a press fit, and a roller rotatable on the outside of each said bushing, and outer links, each comprising a pair of outer link plates and two pins fitting into said outer link plates with a press fit, in which the outer link plates of each outer link are in overlapping relationship with the inner link plates of two adjacent inner links, and a pin of each outer link extends loosely through a bushing of an adjacent inner link, whereby the inner and outer links are connected articulably in alternating relationship along the length of the chain; and a sprocket having a tooth form, which engages with said roller chain; in which said sprocket has at least first teeth and second teeth having different tooth forms, said first teeth having a root radius R in which the root radius R