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Old 03-19-2016, 02:21 PM   #41
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1 i don't think grease expansion plays a part in this and have never had issue with such . temps should not get to hot and if they do you may have other issues .
2 on grease compatibility don't think there's an issue there either
this is all imo
You may be correct and I've spent some time thinking about the expansion thing over the years. I carry a high quality infrared thermometer with me. Whenever I stop, I'll shoot the tires, and wheels close to the hubs, mostly to see if any one wheel/tire is hotter than the others. When we have left the house on cool days of around 40 degrees F, and then drive through a few hills and stop, the tire temps will be in the 125 F range, and the hubs a few degrees warmer. Now those temps are not worrisome to me, but it is a 300% increase in temp. I should probably check to see what the coefficient of expansion is for wheel bearing grease, but it's probably pretty low, so I tend to agree with your statement, but I'm still a little more comfortable by not packing the hub cavity full. Given the right temps, grease will flow.

As to grease compatibility, I've never had an issue, but when I pull hubs to repack, I'll remove all of the old grease and discard. Especially on vehicles. I have a Scag zero turn lawnmower and they strongly state to not mix grease for the blade spindles, but those things are spinning around 18,000 rpm which is a little faster than vehicle wheels...lol Does anyone know the rpm of a 16" trailer tire at 65 mph?
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Old 03-19-2016, 03:03 PM   #42
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...Does anyone know the rpm of a 16" trailer tire at 65 mph?
Need tire size and then it can be calculated.
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Old 03-19-2016, 03:28 PM   #43
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Old 03-19-2016, 04:09 PM   #44
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a 225/75/16 will go 712 revs per miles . you can get this info at tire rack
now on the heat thing i'll wager that weather it's 40 out or 80 out the temp will stay right at about your 125 . so your 300% increase is a bit over board . otherwise at 80 ambient temp you'd have hubs running at 240 . and we know that's not the case . when ever i tow my hubs have never been anything but warm to the touch
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Old 03-19-2016, 05:17 PM   #45
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a 225/75/16 will go 712 revs per miles . you can get this info at tire rack
now on the heat thing i'll wager that weather it's 40 out or 80 out the temp will stay right at about your 125 . so your 300% increase is a bit over board . otherwise at 80 ambient temp you'd have hubs running at 240 . and we know that's not the case . when ever i tow my hubs have never been anything but warm to the touch
Valid point, and I agree. Because even when the ambient is in the 80's or 90's, my tire/hub temps are still only around 135 +/-. I don't think I've ever seen them over 137.
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Old 03-19-2016, 05:59 PM   #46
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Any advice on greasing the wheel bearings would be appreciated. I have a 2016 29HFS i purchased back in october. I remember reading something about it northstar posted but cant find it. Something about spinning the wheels as you add the grease slowly. Thanks
Unless you have a problem there is no need to grease the wheel bearings of a 2016 for a couple years after purchase of the trailer unless you pull it all over the country.
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Old 03-19-2016, 06:10 PM   #47
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Unless you have a problem there is no need to grease the wheel bearings of a 2016 for a couple years after purchase of the trailer unless you pull it all over the country.
I disagree, the factory is remiss at lubrication of the wheel bearings. I'd pull them and re-pack before going very far, like over 100 miles. ()
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Old 03-19-2016, 06:21 PM   #48
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I disagree, the factory is remiss at lubrication of the wheel bearings. I'd pull them and re-pack before going very far, like over 100 miles. ()
We can agree to disagree.......More people that have never repacked bearings cause more harm than good by improperly repacking them and /or plain not knowing how to do it. Just my opinion . Seen it all too many times.
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Old 03-19-2016, 06:30 PM   #49
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We can agree to disagree.......More people that have never repacked bearings cause more harm than good by improperly repacking them and /or plain not knowing how to do it. Just my opinion . Seen it all too many times.
The 2 FR trailers I bought new were lucky to have enough grease in them to make it from the dealer's lot. Was lucky they made it from Goshen to Concord. They certainly were not lubed per Dexter manual even coming from the Dexter factory direct to FR. Just my own experience. Better be safe than sorry with a burnt spindle in the middle of nowhere. A couple of tubes of Red N Tacky is much cheaper than a new axle.
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Old 03-19-2016, 06:31 PM   #50
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I disagree, the factory is remiss at lubrication of the wheel bearings. I'd pull them and re-pack before going very far, like over 100 miles. ()
Agreed . they not only miss lubrication but never set the bearings . seems the dealers are supposed to do that but i know they don't
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