Does Install of Grease Seal in Hub Require Greasing Hub Bore

Question

Question:

When installing new grease seals in my travel trailer hubs should the lips on the seals be lubricated with bearing grease prior assembly?

asked by: Yves M

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Expert Reply:

Hey Yves, it is not necessary to grease the hub where the seal installs before installing them. That said grease won't hurt anything either so I wouldn't stress about it either way.

expert reply by: Jameson C

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Answer 1

When the hubs get hot, and then backed into water for unloading, they have a tendency to suck water into the hub. Normal dust caps will not offer much protection. If you are looking for a bearing cap replacement that keeps out water and dirt, then…

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Answer 2

It is not required to grease the rubber portion of hub seals like the #GS-2250DL that you referenced. You would not need to do that with the races either.

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Answer 3

Bearing Buddies like #BB2240 are waterproof. They are commonly used in boat applications so you would not have to worry about them allowing water past them into your hub. Based on the dimensions of your hub these are the correct fit. I attached a…

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Answer 4

The O-rings of the #DX52UR goes between the covers and the hub and the zerk fitting is a replacement if needed. We don't have ability to make a video for this quite yet though.

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Answer 5

Hi Wayne; I would use mineral spirits (no particular brand) to completely clean the old grease off of the bearings and then let them air dry. I would still wipe the bearings down first to get as much off as possible and make the process…

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Answer 6

Before you added the new grease did you completely remove all of the old grease from everywhere? I bring it up because not all greases are compatible with each other and it can cause the grease to break down. It wouldn't happen over night but it…

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Answer 7

You would know to replace brake shoes the same way you would know with a vehicle. If performance is suffering and adjusting the brakes does not help and there are no other issues causing the poor performance it is probably time to change the brake…

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Answer 8

After you've packed the bearings and assembled everything, carefully slide the hub assembly onto the spindle and install the outer bearing. Install the spindle and tang washer and run the spindle nut down finger tight, then rotate the hub back…

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Answer 9

Yes, the temperatures you mentioned are normal. If you were getting over 200 degrees that would be a bad sign. But typically if all of the hubs are the same temperature you're good and it's only really an issue if one of the hubs is hotter…

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Answer 10

Hey Mike, thanks for reaching out! I'm pretty sure your boat trailer has a 3,500 lbs axle which means you should need the Grease Seal #TMK58ZR which has a 1.719" ID and a 2.565" OD - you'll want to verify this on your end. I…

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Answer 11

To convert an oil-bath hub to a grease hub all you really have to do is is remove the oil from the hub and replace it with grease like the LMX Red grease #L11390. The cap, seal, and bearings you have now are perfectly compatible with grease.

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