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Old 05-05-2016, 06:38 AM   #11
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I think the main reason they don't get "love" is because many think they are a quick fix to greasing/ inspecting bearings and have the perception that just shoving some grease in the fitting will keep them from having problems.

No manner of talking about it seems to change that perception.

If you have them, read the procedure for lubing them.

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Old 05-05-2016, 06:44 AM   #12
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I've found that every 2 years or 10,000 miles, which ever comes first..., has worked for me (repack and brake inspection).



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Old 05-05-2016, 10:07 AM   #13
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Sounds like I was definitely too early getting mine done but I guess I won't have to worry about a dry one coming out of the factory, so a little peace of mind will be the only benefit. I'm going to follow the two year 10,000-12,000 mile rule from now on and learn how to do them myself. I cant haul it to the house but I can haul it to work and do it in the parking lot. Once again a very educational thread for a tenderfoot.
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Old 05-05-2016, 10:32 AM   #14
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Originally Posted by TWP723 View Post
I wonder if I should check mine? Bought the unit last March and put maybe 5K on it since. What say you??
I would check them, as I described above. If you've got the EZ-Lube hubs and have never added grease, it will probably take a tube of grease per side of the trailer, ie. half a tube per spindle. Make sure you pump it in slowly and spinning the wheel helps because it has the grease moving in the bearings prior to putting pressure on the grease. I do this every other year, in between the years I do it the hard way. Some think it's a bit much but I hate nothing more than being broke on the side of the road.
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Old 05-05-2016, 10:46 AM   #15
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EZ lube hubs are great if they work properly. Even if you do know how to properly use them you still run the risk of blowing a rear seal. You won't know if you do or not when pumping grease into them. You may be pumping the right way and just as you get your last couple pumps in and grease starts to seep out the front you could also be pushing some out the seal as well.
I'm not an engineer so I don't know the pressure requirements of grease. I'm not sure which would win out in the pressure test. But if the rear seal is leaking a little I think that you could still be pushing grease out the front. At some point the rear seal will give way and then all the grease will going out the rear.
Hand pack and be safe.
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Old 05-05-2016, 11:53 AM   #16
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My trailer is also a '13 and I figure there's about 10,000km on it. This will be the year that I have the brakes and bearings serviced for the first time. I also don't like the idea of the EZ lube fittings because they don't do a thorough job and you can't see the if the rear seal is leaking grease into the brakes while you're pumping it in.
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Old 05-05-2016, 02:13 PM   #17
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Last time I serviced my EZ-Lube hubs I did a full job - new brake drums with bearing races installed, new bearings, and new seals. After checking the races to make sure they were fully pressed into place, I lubed all the bearings, forcing Mobil 1 synthetic grease into them, using the press-the-bearing-into-a-palmfull-of-grease method. Then around each bearing once placed in the hubs I slopped on another tablespoon or two of grease in the bearing/race area. Torqued bearings/drums onto spindles, and called it good. I used only about 1/2 of a tube of grease total for all 4 wheel assemblies. In my 5000 miles of towing over the last winter season, the bearings worked just fine, with no overheating or other problems.

I just can't make myself waste a tube of grease in each hub assembly when the bearings need only a small amount. The rest of the grease around the spindle isn't used by the bearings. EZ-Lube hubs were designed mainly for submersible/boat trailers, and in that case they SHOULD be filled with grease to displace water, and SHOULD be pumped with grease after each submersion. But with dry land trailers, just lube, seal and forget until the recommended routine disassembly/inspection/relube interval.

Who worries that much about the grease in their cars and trucks? They go nearly forever on the original grease from the manufacturer. Anyway, that's take on EZ-Lube hubs and their care.
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Old 05-05-2016, 02:42 PM   #18
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Bill, I agree with you 100%. I also do my own, old fashion, grease in palm packing bearing method and no 2 tube grease packing overkill. I would be afraid to pump grease into the EZ-Lube zerks even if done properly and as specified due to the possibility of a seal blow out.

I also believe the wheels should come off every 2 years and a bearing repack performed and new seals installed regardless.
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Old 05-05-2016, 06:26 PM   #19
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I guess you could think of it this way- How much grease is there inside sealed bearings, which last a long, long time? Hardly any.
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Old 05-05-2016, 08:57 PM   #20
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Most sealed bearings have only about 25% of the free space filled with grease (or less). 100% fill is used for very slow rotating equipment. For dry land trailers, 100% is not needed. As someone who comes from the bearing industry, I strongly encourage following the axle manufacturer recommendations. They have done the calculations to estimate relube intervals and have historical perspective.

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