RV6 Bearing Numbers

[pa38112]

Does anyone have the Timken bearing and race part numbers for the standard Cleveland main wheels?

[rv7charlie]

The numbers for the slightly 'looser tolerance' versions are
08125 bearing
08231 race

You get to decide whether its worth paying roughly 5 times as much for the space grade version (numbers escape me....)

Charlie

[pa38112]

Thank you ! - There is nothing to decide. The fit is set by the pre-load not the manufacturing tolerance. The fit is very course considering you have to back off the nut until you align the cotter pin. A tighter tolerance won't do anything but add cost

[rv7charlie]

To be clear, this isn't about preload. The 'loose' tolerances is a reference to how tight the machining is on the rollers and raceways. If someone posts the p/n's for the actual spec'd bearings, you can look up both & see the numbers.

Think machined to 4 digits past the decimal instead of 6 digits past the decimal; that sort of thing.

Not implying that the numbers I gave you are trashy bearings; they're not. But the original numbers are tighter tolerance.

Charlie

[Larco]

Originally Posted by pa38112

Does anyone have the Timken bearing and race part numbers for the standard Cleveland main wheels?

I am not at the port but do have the part #s there. If you don't come up with what you need email me and I will get the info to you. If you look at the side of the bearing or the race the # will be stamped there and Napa or other part stores should have the none certified version of them. IIRC the aviation # has an A added on to it? Larry

[rv7charlie]

Here's a writeup from a vendor hyping the advantages of 'aviation grade' vs 'automotive'.
http://www.mcfarlaneaviation.com/Pro...tNumber=08125&
The vendor's statement is pretty much what I've always heard about the difference (from vendors :-) ).

According to the link above, you add the suffix -20629 to the numbers I gave you to get the 'aviation grade' bearings.

Charlie