bearing?

T

TJ500

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May 17, 2003
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Location
Lockport, Manitoba. Canada
Does anyone know off hand, the three dimensions for the only bearing that sits in the chain case cover?...

I'm getting ready to drop driveshaft and jackshaft and would like to have the bearings purchased and ready when I start to tear her down...

2002 MM700

thanks TJ..
 

TJ500, The bearings in the chaincase can be bought from SKF or any other manufacturer, much cheaper than OEM. I do not remember the dimension for the small cover bearing however.
Make sure you get them with C3 tolerance for proper function. The C3 tolerance allows for larger flex and bending of the bearing. If a standard bearing is used the bearings will get prematurely destroyed. I have been using SKF bearings in my machine for several years now without any problems.
The SKF number is 6205 C3. Make sure you specify the C3 tolerance since not all shops are aware of this.

/Daniel
 
thanks Daniel... Great info... Would this appy to all drive train bearings, both the bearings on the PTO side and all in the chaincase?...(5 in total)

Never new there was a difference..

TJ..
 
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Well, as I said, the 6205 bearings are the upper and lower chaincase bearings with C3 tolerance, the corresponding bearings on the opposite PTO side, the clutch side, are a special design and cannot be bought from SKF as far as I know. The lower PTO driveshaft bearing has a sleeve where the stopscrews for the bearing are mounted and the upper is a plain ballbearing but with a spherical shape on the outer dia to allow some angular misalignment in the jackshaft.
I tried to get them from non OEM but had to give up. (and my daily work involves designing of machine equipment with a LOT of different bearings....).
I do not remember the dimension or tolerance of the smaller chaincase cover bearing but just disassemble the bearing from the cover and read the numbers on the bearing or measure it, you will find it in SKF, NTN, KOYO or RBC standard product programs.

Make sure you tighten the complete assembly in the correct order to avoid a too high preloading of the bearings resulting in premature failure. :yam:
 
I dont believe that bearing is very expensive, but im sure you could save a couple bucks anyways if you dont go with the oem.
 
they will be your standard NTN 6205,2RS bearings 52mm o.d 25mm (0.984'') i.d
 
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