OID / ENGINEERING TOOLS
Bearing life
Estimate the basic life and, if needed, account for reliability, lubrication and contamination.
The specific bearing's data is entered manually.
REFERENCE MATERIAL
How to determine the inputs
Open the explanation, pick the applicable table, or step through the worked example.
Methodology and limits of applicability
OID, ch. 5, §5.4-5.5; table E
L10 = (C/P)^p
L10h = 10⁶·L10 / (60·n)
Lnm = a₁ · aISO · L10
L10h = 10⁶·L10 / (60·n)
Lnm = a₁ · aISO · L10
Input coefficients and requirements must correspond to the specific construction and duty. Missing values are never substituted automatically.
The life, static-safety and minimum-load checks are independent. Slewing bearings, linear systems, plain bearings and small oscillation angles need an applicable specialized model.
What limits this calculation:
- fatigue load limit Cu values of specific bearings