Motor reliability with two bearings
Weibull-based reliability of each bearing at a given service life (from its L10 life), combined into overall motor reliability.
Reliability, bearing 1, R(t)₁0.927
Reliability, bearing 2, R(t)₂0.96
Motor reliability, R(t)0.89
Method & references
- Weibull-based bearing-life reliability (L10 to characteristic life via the standard 4.48 factor), combined in series for a motor with two bearings.
The computation is a literal port of the original client-side JavaScript from /calculators/c1_7.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.