Oil bath lubricated bearings?

[Roger]

I had a trailer for 8 years with bearing buddies that I never repacked the bearings. I just made sure there was enough grease, but not too much. I also checked the hubs after every tow. They never got very warm.

Now I have superlube hubs which work like a bearing repacker - pushing the old grease out when new grease is pumped in.

Personally, I'd rather carry a $40 hub/bearing assembly and maybe never use it than do the annual messy preventative maintenance on the bearings. Besides, I usually have to spend time fixing broken items to worry about things that ain't broke.

["uffah!!"]

Yes, tractor-trailers are lubricated by Oil Bath Bearings. They
use
the oil bath system because they don't heat-up and cause bearing failure. If you look at it, like, a tractor-trailer traveling up and down the highway at 65mph with a gross weight of lets say 80,000lbs, for approx.10hrs.at a time, those bearings can get pretty hot.

[ragfly]

maybe I should re-phrase the rebuild my bearings, I should have said remove them, clean them and repack them. I usually don't have to replace the bearings. I could probably go two years, but like I said I trailer alot and sometimes it's 4 or 5 hour drives. I do have buddy bearings on them, by the way buddy bearings only work on the front bearings not the rear, I learned that the hard way many years ago. I was just wondering how these bearings were.

[fishaholic18]

I repacked mine and changed seals every year. If you haven't, chances are..They are corroded.

[macojoe]

I had my old trailer 7 years, bought it cleaned the bearing's, and did every spring, and never replaced them ever!!

But the new trailer has the super lube like Rogers and I have never worried about it, but it is only 2 years old.

[Team Rock On]

I've had the oil bath bearings on my trailer for about 4 years. Over 15,000 miles on them too. Never done a thing but look in the "window" to see if there was still oil in there.