Martin D20B15 Type B Double Strand Solid Stock Bore Roller Chain Sprocket, 20 to 85 mm Dia Bore, 173.347 mm OD, #20B-2 Chain, 15 Teeth, 31.75 mm Pitch, High Carbon Steel
Martin metric double 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 Double Strand Solid Stock Bore, 20 to 85 mm Bore, 173.347 mm OD, #20B-2 Chain, 15 Teeth, 31.75 mm Pitch, 152.709 mm Pitch Diameter, 119.99 mm Diameter Hub, 80.01 mm Length Through Bore, High Carbon Steel
| Bore Diameter | : | 20 to 85 mm |
| Outside Diameter | : | 173.347 mm |
| Chain Size | : | #20B-2 |
| Number of Teeth | : | 15 |
| Pitch | : | 31.75 mm |
| Material | : | High Carbon Steel |
| Hub Diameter | : | 119.99 mm |
| Length Through Bore | : | 80.01 mm |
| Pitch Diameter | : | 152.709 mm |
| Type | : | Type B Double Strand Solid Stock Bore |
VIDEO LINK
https://www.youtube.com/watch?v=fSomOMNB_-Q