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Front Wheel Bearings

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#41
Bench Racer

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Looks like a nice piece for an enduro car to add grease during the race? I think I would still have my guys pull mine apart, clean and regrease for sprint races though

Or to rephrase. :bigsquaregrin:


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#42
FTodaro

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I did not see the add or know anything about that device but it sounds like a Bearing buddy type device used on boats where you can push grease through the hub. If that is the case, my concern would be too much grease. One mistake that can be made is putting in too much grease, it will cause the bearing to overheat IMO.


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Frank
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#43
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One mistake that can be made is putting in too much grease, it will cause the bearing to overheat IMO.

To confirm Frank's IMO.

 

"Too much grease volume (overgreasing) in a bearing cavity will cause the rotating bearing elements to begin churning the grease, pushing it out of the way, resulting in energy loss and rising temperatures. This leads to rapid oxidation (chemical degradation) of the grease as well as an accelerated rate of oil bleed, which is a separation of the oil from the thickener. The heat that has been generated over time along with the oil bleed eventually will cook the grease thickener into a hard, crusty build-up that can impair proper lubrication and even block new grease from reaching the core of the bearing. This can result in accelerated wear of the rolling elements and then component failure."


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#44
TommyB

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Would this degradation of the grease also apply to high end synthetics ?



#45
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http://www.machinery...redict-oil-life


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#46
TommyB

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So, I guess the lesson here is similar to the approach of voting in Chicago......change your grease "early" and "often".






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