Service Factor (f p) and Composite Service Factor (Fp)*
* - For definitions of frequent or infrequent shock
refer to the Design Chain Pull. For definitions of chain
loading refer to the Design Chain Pull or Table
8. The composite service factor (Fp) is equal to the product of the service
factors (fp), see the Chain Selection Example.
| CONDITIONS AFFECTING CHAIN LIFE EXPECTANCY | SERVICE FACTORS (f p) |
|
| Frequency of Shock | Infrequent Shock | 1 |
| Frequent Shock | 1.2 | |
| Character of Chain Loading | Uniform or Steady Load | 1 |
| Moderate Shock Load | 1.2 | |
| Heavy Shock Load | 1.5 | |
| Atmospheric Conditions | Relatively Clean and Moderate Temperature | 1 |
| Moderately Dirty and Moderate Temperature | 1.2 | |
| Exposed to Weather, Very Dirty, Abrasion, Mildly Corrosive and Reasonable High Temperatures | 1.4 | |
| Daily Operating Range | 8-10 Hours | 1 |
| 10-24 Hours | 1.2 | |
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