Proper bearing temperature measurement
Proper bearing temperature measurement
(OP)
I'm looking for information to help me in knowing exactly where to measure the temperature of a bearings in a marine gearbox, i.e, where should the probe be. I assumed that the same location on all would be appropriate, but I get different temperatures on 2 differents vessels with identical gearboxes.





RE: Proper bearing temperature measurement
raceway would be best. It is not surprising that
they differ, but by how much? Tolerances, machining
accuracies, alignment, loads, etc. would be unique to
each vessel. If they were very discrepant in values,
I would start to worry about the higher value and
monitor that bearing very closely.
RE: Proper bearing temperature measurement
RE: Proper bearing temperature measurement
I have no suggestion how to factor in this varible. Except to start with grease free bearings and add an exact amount of grease to each. I admit this is fuzzy - but the amount of grease in a bearing has a very large impact on heat generation and dissipation.
RE: Proper bearing temperature measurement
RE: Proper bearing temperature measurement
Measuring bearing temperature is really subjective. If the bearing temp is being measured on the outside housing it is subject to large variations. Have you thought about installing bearing metal thermocouples in the bearing proper during next inspection, thermocouple should be as close to the ID of the bearing as possible without compromising the integrity of the load bearing portion.
RE: Proper bearing temperature measurement
AHR International Ltd
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