The SKF Bearing The SKF Bearing: Vibration, Rust and Corrosion shorten bearing life. InnoFlex® bearing housings eliminate rust and corrosion. With the InnoFlex®bearing housing, the SKF/Peer Metric ball bearings sit on top of the Combi-Cap shaft protector and not directly on the metal shaft. Reducing bearing vibration and eliminating rust and corrosion caused by the naturally occurring Di-electric between the shaft and bearing.