Patent ID: 7232392

Claim:
A chain drive assembly comprising: a sprocket assembly comprising: (a) a sprocket body comprising a hub and an annular toothed portion connected to said hub, said toothed portion comprising opposite first and second axial faces and comprising a plurality of circumferentially spaced-apart teeth that project radially outwardly from said hub; (b) first and second flanges connected to said hub on opposite sides of said annular toothed portion, said first and second flanges each defining a non-circular periphery; (c) a first cushion ring loosely received on said hub between said first flange and said first axial face of said annular toothed member; and, (d) a second cushion ring loosely received on said hub between said second flange and said second axial face of said annular toothed member; said chain drive assembly further comprising a chain engaging said sprocket body teeth.