Change Gear; 1" Bore; 4-1/4" Pitch Diameter; 12 DP; 3/4" Face Width; Finished Bore; 51 Teeth; 14-1/2 Degree Pressure Angle; Steel

Roller Chain Sprocket; 80 Chain; 51 Teeth; 1 Row of Teeth; No Hardened Teeth; 16-13/16" Outside Diameter; 16.244" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 50 Chain; 51 Teeth; 1 Row of Teeth; No Hardened Teeth; 10.508" Outside Diameter; 10.153" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 5/8" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 40 Chain; 51 Teeth; 1 Row of Teeth; No Hardened Teeth; 8-13/32" Outside Diameter; 8.122" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 100 Chain; 51 Teeth; 1 Row of Teeth; No Hardened Teeth; 21-1/64" Outside Diameter; 20.305" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1-1/4" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material