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Old 02-24-2015, 08:04 AM   #41
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...bearing buddies are superior to the ez lube design and quite different.
Beg to differ on this. Bearing Buddies will force grease around the rear seal and ruin the brake shoes. BB are ok for trailers WITHOUT brakes!
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Old 02-24-2015, 08:29 AM   #42
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When I was a teen my father (who was a Mechanic) showed me how to repack bearing now most if not all the bearings on cars today are a throw away bearing,. Trailers on the other hand are able to be repacked, Dad always took the bearings out and cleaned them in a can of Kerosene , breaking down the old grease and dirt, then taking a tooth brush going over them with the kerosene. After they were cleaned he would repack them with a good wheel bearing grease. There is a tool now for repacking bearings then we used a blob of grease in your hand and just kept forcing the grease in. Depending on how much you travel every 3 -5 yrs should do. If you buy a used trailer go over it good and this is one of those parts to check then while there check brake drums and pads also all the brake springs.
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Old 02-24-2015, 08:50 AM   #43
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One trick on the ez-lube type bearings. As tempting as it may be to add/replace grease using the zerk before the first trip in the spring. Wait for a warm day or until after a short trip. Trying to grease when the seals are stiff and the grease in the bearings is cold ( stiff) is less effective and can cause a seal leak.
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Old 02-24-2015, 09:00 AM   #44
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Thanks Happy Vibe. I've used bearing zerks and have serviced bearings for quite a while (I'm an old geezer), so I do know how they work. You simply cannot expect to replace all the grease by pumping it through the zerk. As you said, grease enters at the inner bearing, then has to work its way through the cavity between the bearings which might or might not already be filled with grease (depending on how it was previously packed), then past or through the outer bearing before any can exit. If the cavity is already filled, then the outer bearing will receive grease. If the cavity is not filled, no new grease will reach the outer bearing; grease will simply accumulate in the cavity until it's filled. Unless one sees grease being forced out during the lubing process, the only other way to know for sure if both bearings are well lubed is to open it up and dismantle. And of course that's the only way to inspect bearings and races. Personally, I prefer to hand-pack although it's not a pleasant job, and pump in 2 or 3 shots through the zerks a couple times a season just for insurance.
Best regards.
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Old 02-24-2015, 09:04 AM   #45
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Flybob, good point on greasing when it's warm.
I'd like to know about the eagle in you photo.
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Old 02-24-2015, 09:11 AM   #46
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One trick on the ez-lube type bearings. As tempting as it may be to add/replace grease using the zerk before the first trip in the spring. Wait for a warm day or until after a short trip. Trying to grease when the seals are stiff and the grease in the bearings is cold ( stiff) is less effective and can cause a seal leak.
Exactly...
Warm weather; warm grease and pump the gun slowly.

I repacked the Greywolf after having used kept them full via the zerk fittings and could see that the bearings were packed well and the grease looked good, essentially a waste of time. There are Dexter axles on my XLR as well, I am 99% sure. Am I wrong to assume that my trailer bearings are doing OK by just using the grease gun fittings? I used the high temp grease and added it until the red grease came out in abundance.

I plan to inspect brakes and bearings every couple of years or when ever peace of mind dictates, when I will clean, then pack using the tool that lets you pump via a zerk fitting.
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Old 02-24-2015, 09:11 AM   #47
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As you said frozen if you don't see grease coming out the front of the axle putting a couple shots of grease in is doing nothing for the outer bearing. According to the maintenance manual you are supposed to but the grease in until it comes out the front.
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Old 02-24-2015, 09:15 AM   #48
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Mark0224, your father knew what he was doing--blob of grease in hand and force it into the bearings. My brother who was a farmer taught me another trick: at an auto parts or hardware store, purchase a needle that screws onto the grease gun. Pump grease through the needle between the roller bearings, then finish with the blob-in-hand routine.
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Old 02-24-2015, 11:52 AM   #49
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One trick on the ez-lube type bearings. As tempting as it may be to add/replace grease using the zerk before the first trip in the spring. Wait for a warm day or until after a short trip. Trying to grease when the seals are stiff and the grease in the bearings is cold ( stiff) is less effective and can cause a seal leak.
One easy way to put the grease in using a grease gun is to put the grease gun in the sun on a warm day that your going to tow your trailer and when you get to your camp site grease the bearings. The grease in the bearing will be warm and the grase in the tube will be warm so it will go in easy.
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Old 02-25-2015, 11:18 AM   #50
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IMO using the zerk fitting on bearings is a bad idea ! if your losing grease then you need new seals . those that think they can go pump in some grease every now and again are in for a break down sooner or later . The only proper and correct way is to remove and pack by hand , check all bearings and hubs , replace seals if needed , check breaks .
I've seen to many burned up bearings and axles from people who said they pump them full every yr.
Trailer bearings are not expensive , seals are not expensive the time it takes to pull the 4 hubs and do by hand is only a couple hours . this allows you to really check your unit out .
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