| Symbol | SHmin |
|---|---|
| Unit | - |
| Attribute-ID | abs_minimum_safety_factor_surface |
| Numeric ID | 5353 |
| Value Type | PMDouble |
The required minimum safety factor for contact stress SHmin will be used to calculate the permissible contact stress σHP.
The following options are available acc. to ABS 2011 and ABS 2019:
| System type | SHmin |
| Main drive | 1.40 |
| Dual main drive | 1.25 |
| Yacht main drive | 1.25 |
| Yacht dual main drive | 1.20 |
| Auxiliary drives | 1.15 |
To get the pitting stress limit σHG the permissible contact stress σHP has to be multiplied by the minimum safety factor for contact stress SHmin. The pitting stress limit σHG divided by the contact stress σH is resulting in the pitting safety factor SH.
Source: American Bureau of Shipping (ABS): Rules for Building and Classing Steel Vessels, Paramus, New Jersey - edition 2011 and 2019