Condition monitoring
AssigneeAktiebolaget Skf
InventorsJoseph Erskine, Andrew Campbell, Allan Thomson
Life of this patent
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Abstract
A rolling element bearing may potentially experience uneven loads across the length of its rolling elements due to either one or more of design errors, manufacturing errors or installation errors or any combination of these errors. The invention enables a physical measurement to be carried out on these potentially uneven loads on the rolling elements of a rolling element bearing by a technique that makes use of two or more load or strain sensors for measurement of roller load induced strain signals along a length of a rolling element in a rolling element bearing with rollers, such as cylindrical rollers for bearing arrangements.
Claims9
A method of measuring roller load in a rolling element bearing along the length of a roller, the bearing having an inner ring with a raceway, an outer ring with a raceway and several rolling elements or bodies installed between the rings, the rolling elements being rollers or needles, the method comprising:
- placing two or more load or strain sensors spread along a first line that is substantially parallel to and at a predetermined distance from a second line where a roller contacts a raceway, and
- measuring and detecting an uneven load along the length of a loaded roller.
Dependencies are inferred from the claim text.