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Old 26 September 2007, 08:19   #1
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Changing Sealed for life bearings

I am planning to change the sealed for life bearings on my R M trailer.

Any useful information from those with experience would be appreciated!
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Old 26 September 2007, 08:21   #2
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4ft scaffold pole to undo and retighten the nut.

Plus of course a big hammer and drift to remove them.

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Old 26 September 2007, 10:15   #3
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Make sure you only apply pressure to the outer shell when fitting the new ones, otherwise you will damage the bearings. Better still .. If you can, take your hubs to a local garage who will press out the old ones and put the new ones in, in a jiffy
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Old 26 September 2007, 11:29   #4
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...and whatever you do, DON'T hammer the new ones onto the shaft!
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Old 26 September 2007, 12:32   #5
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Thanks for the replies.

Any recommendations for where to get the tools? I'd like to do the job myself if possible.
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Old 26 September 2007, 15:16   #6
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How long have those nuts been on? having snapped a 1/2 drive breaker bar standing on the end of a 4 foot pole trying to undo the nut, I had to borrow 3/4 drive stuff from work to get a rusty nut off but still needed the 4 foot scafold bar. Hub came off easily enough and the large circlips popped out after a fashion once the grove was cleaned up. However I had to take the hubs into trailer tek to borrow there 20 tonne press to get the bearings out. The press was visably bending before the bearing shot out with a huge bang. New ones went back in okay. If you have the option fit new nuts as they are one shot only and not supposed to be used again.

Quite a few on here use: http://www.trailertek.com/

Good luck

Pete
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Old 26 September 2007, 21:02   #7
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Macine mart for tools I guess or Honest Johns on e bay

Presses are good but if you don't heed that advice then use the old bearings to drift the new ones on.

Nowadays to save fkkn about instead of carrying a spare wheel I carry a complete wheel/tyre/hub/bearing when towing sealed bearing trailers it's a lot quicker than changing a wheel.
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Old 27 September 2007, 01:57   #8
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Thanks all for the information, really useful.

They have both my bearings and hub nuts at TrailerTek.

The trailer is only a couple of years old so I'm optimistically hoping the corrosion is not too bad. I guess I'll find out soon enough!
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Old 26 February 2008, 13:41   #9
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bearings

"sealed for life" and you must replace them ...! Why ?

It occured to me on a french trailer, the reason was : internal grease sealer too large by 2mm on the axle ! So free entry for sea water
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Old 26 February 2008, 15:07   #10
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Heat the hub up a bit and they will drift out and new ones in very easily. Wear gloves. Do not melt all the grease out of the new ones.
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