Roller Chain Sprocket; 28B-2 Chain; 18 Teeth; 2 Row of Teeth; No Hardened Teeth; 278.74MM Outside Diameter; 255.98MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 44.45MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 28B-2 Chain; 16 Teeth; 2 Row of Teeth; No Hardened Teeth; 250.114MM Outside Diameter; 227.84MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 44.45MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 28B-2 Chain; 19 Teeth; 2 Row of Teeth; No Hardened Teeth; 293.065MM Outside Diameter; 270.06MM Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 44.45MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 28B-2 Chain; 20 Teeth; 2 Row of Teeth; No Hardened Teeth; 307.34MM Outside Diameter; 284.14MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 44.45MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 28B-2 Chain; 20 Teeth; 2 Row of Teeth; No Hardened Teeth; 307.34MM Outside Diameter; 284.14MM Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 44.45MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material