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Weird King Pin Bearings with a Seal ?

  • S200KYS
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12 Jun 2019 16:59 #209893 by S200KYS
Stripping the front axle for the buggy project today (more photos on the build thread later) and came across these weird looking bearings on one side only? -



The wider side of the race has what could only be described as a builtin washer with a rubber seal on it?!

Anyone seen these before? / offer an explanation?

Is It Sunday Yet? ;)
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  • Lambert
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12 Jun 2019 17:22 #209894 by Lambert
No, but they seem to be in fairly good shape?

Dreadnaught (black 2011)

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12 Jun 2019 19:12 #209903 by stiffsteve204me
A sealed, tapered, roller bearing.

www.bearing-king.co.uk/bearing/lm48548l-...x25625x071-inch/3622

Different from yours, but the same idea.






Steve.

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12 Jun 2019 19:48 #209904 by S200KYS
Hmmm, do you think someone used them as they were the right size then?

I can't fathom the application of the seal within the axle ball cup? It looks like an oil seal, but there shouldn't be any oil in the ball cup? Only grease?

Baffled...

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13 Jun 2019 09:05 #209912 by mlines
Perhaps these are sealing on the "outside" so could be an attempt to keep water out rather than oil in. This has two misconceptions however:

1. The water should be kept out by proper application of a suitable sealant when fitting the kingpin, so not needed.
2. Keeping oil in, there should be no oil there (halfshaft oil seal) so why do you need to keep it in

I seem to recall another parts supplier (I genuinely cannot remember their name) fanfaring the introduction of these and trying to think what benefit they would actually achieve?

Martin

2003 M13 early KAP build.
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13 Jun 2019 19:28 #209923 by S200KYS
"Snake Oil" then?

Probably that "Parasource" fella back in the day? ;)

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13 Jun 2019 21:25 - 13 Jun 2019 21:53 #209925 by Scimike
Certainly within the scope of the Jimny Kingpin assembly then yes "snake oil" as others have said.

Any water that may enter the swivel housing is going to head south to the lower kingpin bearing. Even with that seal water will still go down the centre pin hole and fill the bearing, assuming the kingpin is sealed only at the bottom as per the instructions.

But then it does no harm.
Last edit: 13 Jun 2019 21:53 by Scimike.

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