Patent ID: 6325734
Filing Date: 2001-12-04
Classification: F16H

Abstract:
A sprocket comprising:a first plurality of teeth each having a first engaging flank and a first disengaging flank that are shaped to define a first tooth profile;a second plurality of teeth each having a second engaging flank and a second disengaging flank that are shaped to define a second tooth profile different from said first tooth profile;one of said first plurality of teeth cooperating with a first adjacent tooth to define a first tooth space wherein an associated roller chain roller contacts an engaging flank of said one of the first plurality of teeth when seated in driving contact within said first tooth space; andone of said second plurality of teeth cooperating with a second adjacent tooth to define a second tooth space wherein an associated roller chain roller is spaced apart from an engaging flank of said one of the second plurality of teeth to define a clearance therebetween when seated in driving contact within said second tooth space.