Trailer Axle Hub Manufactures have found great success in extending the life of non-driven axle bearings through the use of Semi-Fluid Greases. They are not as thick as a standard chassis grease which doesn't provide the most efficient temperature control when used in wheel bearings. Semi-Fluid Greases are also not as thin as Gear Oils that are used in Oil-lubricated hubs and are susceptible to leakage. Semi-Fluid Greases with high quality thickeners and premium base oils provide the ultimate protection for trailer wheel hub assemblies. They can handle temperature extremes over longer periods of time and are less prone to leakage.
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