Martin 20A51 Type A Single Strand Solid Stock Bore Roller Chain Sprocket, 40 mm Dia Bore, 536.387 mm OD, #20B-1 Chain, 51 Teeth, 31.75 mm Pitch, Steel
Metric 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 Stock Bore, 40 mm Bore, 536.387 mm OD, #20B-1 Chain, 51 Teeth, 31.75 mm Pitch, 515.749 mm Pitch Diameter, 64 mm Length Through Bore, Steel
| Bore Diameter | : | 40 mm |
| Outside Diameter | : | 536.387 mm |
| Chain Size | : | #20B-1 |
| Number of Teeth | : | 51 |
| Pitch | : | 31.75 mm |
| Material | : | Steel |
| Type | : | Type A Single Strand Solid Stock Bore |
| Pitch Diameter | : | 515.749 mm |
| Length Through Bore | : | 64 mm |
VIDEO LINK
https://www.youtube.com/watch?v=fSomOMNB_-Q