SKF Black Oxide Bearings for Gearbox Reliability

This document is a technical report detailing the application of SKF Black oxide bearings in enhancing gearbox reliability, particularly in wind energy applications. It outlines the challenges faced by a gearbox manufacturer due to early bearing failures, which included white etching and axial cracks, leading to a significant failure rate of 70% within two years. The introduction of SKF Black oxide coated bearings resulted in a dramatic reduction in failure rates to just 0.1% over the same period. The report explains the engineered surface treatment of these bearings, which provides protection against various damage mechanisms and improves lubrication adhesion. It also describes the specific features and benefits of the bearings, including enhanced resistance to corrosion and better performance in poor lubrication conditions. Additionally, the document discusses the advanced engineering process behind the black oxidation treatment and how it can be specified for ordering.