Martin E20B15 Type B Solid Stock Bore Triple Strand Roller Chain Sprocket, 25 to 84 mm Dia Bore, 173.347 mm OD, #20B-3 Chain, 15 Teeth, 31.75 mm Pitch, High Carbon Steel
Martin metric triple strand solid construction sprockets have proper spacing between chain rows. The sprockets are manufactured from high carbon steel. Martin does not stack "A" plates on multiples, but instead Martin machines teeth after the chain rows are already in place. These plain bore sprockets can easily be bored to a metric or standard size to fit your application. Keyways, set screws and harden teeth are quick alterations that can be made.
Martin Roller Chain Sprocket, Type B Solid Stock Bore Triple Strand, 25 to 84 mm Bore, 173.347 mm OD, #20B-3 Chain, 15 Teeth, 31.75 mm Pitch, 152.709 mm Pitch Diameter, 119.99 mm Diameter Hub, 115.037 mm Length Through Bore, High Carbon Steel
| Bore Diameter | : | 25 to 84 mm |
| Outside Diameter | : | 173.347 mm |
| Chain Size | : | #20B-3 |
| Number of Teeth | : | 15 |
| Pitch | : | 31.75 mm |
| Material | : | High Carbon Steel |
| Hub Diameter | : | 119.99 mm |
| Type | : | Type B Solid Stock Bore Triple Strand |
| Length Through Bore | : | 115.037 mm |
| Pitch Diameter | : | 152.709 mm |
VIDEO LINK
https://www.youtube.com/watch?v=fSomOMNB_-Q