This tooth profile allows for the sprockets to seat the chain properly and run inside a coupling cover. It is always recommended to use an aluminum coupling chain cover when running roller chain couplings for safety, performance, and durability reasons. We standardly stock plain-bore, finished bore, and bushed style coupling sprockets.
| sprocket Size | Bore Size | Tooth Count | Hub Diameter (A) | Recommended Maximum RPM | Weight |
|---|---|---|---|---|---|
| 6018 | 2-7/16'' | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-1/4'' | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-15/16" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-1/8" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-3/16" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-3/4" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-5/8" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-7/16" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1-7/8" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 1" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 2-3/8" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 2-7/16" | 18 | 3.674" | 3000 | 2.2 LBS |
| 6018F | 2" | 18 | 3.674" | 3000 | 2.2 LBS |

| sprocket Size | Bushing Type | Tooth Count | Hub Diameter (A) | Recommended Maximum RPM | Weight |
|---|---|---|---|---|---|
| 6020 | 1-1/8" | 20 | 3.875" | 2500 | 2.6 LBS |
| 6020Q | Q | 20 | 3.875" | 2500 | 2.6 LBS |
| 6020SK | SK | 20 | 3.875" | 2500 | 2.6 LBS |
| 6020TLH | 2012 | 20 | 3.875" | 2500 | 2.6 LBS |
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