Approximate Chain Rolling Friction Factors
(f r)*
* - TO BE USED FOR PRELIMINARY CHAIN SELECTION ONLY.
To calculate (f r) for a specific chain use Table 7.
(Click "Table 7" to go to that table)
Table corresponds to Formulas. (Click "Formulas" to
return to formulas page)
| Roller Outside Diameter | Coefficient | |
| Dry | Lubricate | |
| 1 1/2" | 0.17 | 0.11 |
| 2" | 0.020 | 0.13 |
| 2 1/2" | 0.16 | 0.10 |
| 3" | 0.17 | 0.12 |
| 4" | 0.16 | 0.11 |
| 5" | 0.14 | 0.10 |
| 6" | 0.17 | 0.12 |