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A Mechanical Condition or a Lubrication Condition?

When monitoring your bearing lubrication with ultrasound, it is important to watch for very high values in your condition indicators ( total RMS and Peak values ). After applying grease, both values should decrease proportionately. This is a sign the bearing was under-lubricated. If the total RMS value lowers and the peak value stays relatively the same, then the bearing has a mechanical condition that is generating impacts.

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