Advised not to repack bearings???
Two years ago, and with our previous trailer, we had a miserable and expensive bearing failure while 4k miles from home. At the time, we had buddy bearings and were under the impression that they did...
Forum Discussion
3oaks wrote:This is wrong. When you pump the cavity full of grease it goes out the front of the axle/hub. The same will apply when it heats and expands. Anyone who says that there is no place for the grease to go has not examined the system close enough.midnightsadie wrote:Correct. In theory, Dexter's easy lube system should work great. However, when you pump the cavity between the inner and out bearings full of grease there is no room for expansion and it makes for grease churning which in itself causes heat. The thinned grease is then forced passed the bearing seal and contaminates the entire brake shoe assembly.
IF you pump to much grease in it will push past the seal and ruin your brakes, this is what a lot of people do, in this case more is not better. dexters work great if used right. if you pack the cavite full it,ll expand and ruin your brakes
To be exact, when you pump the grease into the zerk at the front of the hub/axle, grease will push to and through the rear bearing into the cavity between the front and rear bearing, from there into the front bearing and out into the area under the metal cap. If you're going to use the zerk it's a good idea to remove this cap and remove the excess grease.
Here's a good presentation of how the grease flows: EZ Lube .
