What is the estimated reduction in bearing life at 0.1% water to oil contamination?

The estimated reduction in bearing life due to 0.1% water contamination in oil is significant, with studies indicating that such contamination can lead to a reduction in bearing life by up to 75%. This level of water contamination adversely affects lubrication effectiveness, leading to increased wear, corrosion, and potential premature failure of bearings.

When water is present in oil, it can lead to the formation of emulsions and can significantly reduce the oil's ability to lubricate effectively. Additionally, water can cause rust and corrosion of metal surfaces, which further exacerbates wear. The resulting compound effects from lubrication failure and material degradation justify the substantial reduction in expected bearing life in this scenario.

This understanding highlights the critical importance of maintaining oil purity and minimizing water contamination to ensure optimal performance and longevity of bearings in machinery.