Martin 100A12 Stock Bore Type A Single Pitch Roller Chain Sprocket, 1-1/4 in Dia Bore, 5.415 in OD, #100 Chain, 12 Teeth, 1-1/4 in Pitch, Steel
A plates are flat sprockets with no hub extension on either side. They can be altered for your application with bolt holes, custom bores, hardened teeth or special hubs welded to them.
Martin Single Pitch Roller Chain Sprocket, Stock Bore Type A, 1-1/4 in Bore Dia, 5.415 in Outside Dia, #100 Chain, 12 Teeth, 1-1/4 in Pitch, 4.83 in, 4 in Hub Dia, 0.692 in Length Through Bore, Steel
| Bore Diameter | : | 1-1/4 in |
| Outside Diameter | : | 5.415 in |
| Chain Size | : | #100 |
| Number of Teeth | : | 12 |
| Pitch | : | 1-1/4 in |
| Material | : | Steel |
| Type | : | Stock Bore Type A |
| Pitch Diameter | : | 4.83 in |
| Hub Diameter | : | 4 in |
| Length Through Bore | : | 0.692 in |