Rear Arm Bearing Kits

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ellevie
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Rear Arm Bearing Kits

Post by ellevie » Mon Feb 12, 2007 8:08 am

How many different makes of Rear Arm Bearing kits are available ?
I have had 3 kits made by SKF and one kit made by MAPCO.
There are some small differences between them.
Are SKF the most popular ?
David

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Oscar
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Post by Oscar » Mon Feb 12, 2007 1:34 pm

Mine were SKF. I didn't know there were so many available.

They've worked well so far.
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ellevie
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Post by ellevie » Mon Feb 12, 2007 2:43 pm

There seems to be quite a few differences between the MAPCO and SKF kits.

The most notable difference is that the MAPCO bolt has a much longer thread of 6.5cm compared to 3cm for the SKF bolt. I think I'll keep this bolt and use the old one instead when I come to use this set because it'll come in very handy in future for squeezing the thrust bearings onto the spacer. The SKF thread is way too short for this and I had to use loads of washers etc to pad it out last time.

The other notable difference is that the first 3cm on each end of the MAPCO spacer is machined down so that the diameter is slightly smaller than the SKF spacer, so that the bearings slide on freely.

Also, the geometry of the bearings is different; you can't put an inner bearing from one in the outer cup of the other.
David

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DLM
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Post by DLM » Mon Feb 12, 2007 6:09 pm

Do the two types correspond to the old GSF cheap set (Mapco?) and "standard" (the SKF)?

I don't know a lot about bearings in general, but do know that SKF produce bearings for nearly every application under the sun (and, depending on where and how you buy them, at just about every price under the sun).
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ellevie
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Post by ellevie » Mon Feb 12, 2007 7:24 pm

They may well do, I bought all four sets (three SKF and one MAPCO) second hand off eBay quite cheaply. I've really only been aware of GSF, ECP ect since joining the BX Forum about twelve months ago. MAPCO appears to be German although the name seems to have a French origin.
David

BX19TRS 118K E Reg 1992-2008
BX19TRS auto abs 96k F Reg
BX19TXD 150k K Reg