Martin 180A21 Type A Single Strand Solid Reboreable Roller Chain Sprocket, 1.5 to 12.648 in Dia Bore, 16.278 in OD, #180 Chain, 21 Teeth, 2-1/4 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 Roller Chain Sprocket, Type A Single Strand Solid Reboreable, 1.5 to 12.648 in Bore, 16.278 in OD, #180 Chain, 21 Teeth, 2-1/4 in Pitch, 15.0964 in Pitch Diameter, 1.301 in Length Through Bore, Steel
| Bore Diameter | : | 1.5 to 12.648 in |
| Outside Diameter | : | 16.278 in |
| Chain Size | : | #180 |
| Number of Teeth | : | 21 |
| Pitch | : | 2-1/4 in |
| Material | : | Steel |
| Type | : | Type A Single Strand Solid Reboreable |
| Pitch Diameter | : | 15.0964 in |
| Length Through Bore | : | 1.301 in |
VIDEO LINK
https://www.youtube.com/watch?v=fSomOMNB_-Q