Patent ID: 7228924

Claim:
A sprocket hub and locking collar apparatus, comprising: a sprocket hub having a front face and a rear face; a radial neck portion having an inner and outer perimeter, said neck portion extending outwardly from said front face of said sprocket hub, wherein said inner perimeter of said neck portion defines an axial opening to permit said sprocket hub to slide over a drive axle; said neck portion having a top and bottom flange both located on the outer perimeter of said neck portion distal to said sprocket hub front face; a locking collar having a front face, a rear face, a middle perimeter and an inner middle perimeter; said middle perimeter is interrupted by two elongated middle perimeter lips which define two middle perimeter female portions; and, said inner perimeter of said locking collar defines an axial opening capable of permitting said locking collar to slide over said drive axle and engage said radial neck portion; whereby upon rotation said locking collar can be fixed to said sprocket hub on said drive axle.