[Vwdiesel] Preload on rear bearings

[Dennis Pantazis]

val: your kludge has merit. sometimes machinists will apply a slight knurl
to raise the surface exacly as you have described to an undesized shaft.
typically in the range of a couple of thousanths. not everyone has access to
a lathe or knurling tool...i think that there is an alternative-loctite.

i have used loctite bearing retainer compound on other assemblies, #609 &
620. ie sealed bearings in to shafts or housings in machinery, etc...  to
keep them from spinning. this is not the regular thread locking formula. its
different. to get things apart, you have to use heat to break the bond. i
use a heat gun to control the heat.

depending on the formula, the nice thing about it is that it will gap fill
from 0.005 up to 0.020. they require a cure time. they are heat sensitive. i
think that the 609 is good to 250 degrees,  and the 620 to 450. i have used
the 620 mostly because of its gap filling ability. i can;t imagine the heat
being an issue on a wheel bearing. if you let it get that hot, then i think
the grease would break down. more so than the heat, i would worry about the
grease/oil compatibility.

the small bottles ran me about $20 a piece. more than i ever need. i think
they have small vials too, but i have never bought that little.

i don;t have a loctite book handy, but i think if confronted with the same
situation, i might go that route. at least give them a call and check
compatibility.

dennis