If the wear is minor Bill, your choice of the 620 is fine, but
it's a medium viscosity retainer. I'd use it where the inner
or outer race of a bearing was supposed to be a press fit and
was slightly loose for one reason or another.
If someone is going down to their local bearing supply to buy a
bearing retainer compound for a badly worn bore, I'd recommend
the 620 simply because it's a higher viscosity and will fill a
larger gap, like up to an 1/8" on the total diameter. Also
before they ring you up it wouldn't hurt to pick up a
primer for that compound, #7649.
All that being said, these retaining compounds are just plastic
and I'm not sure just how much hammering they will take before
they get knocked out of place. I mean look at the damage that
was done to the steel, no way plastic is going to take that
much stress. The load on the king pins is a bending load, and
they take an orful beating which is evidenced by the common
need for replacement.
Bearing retainers are mainly compounded for use where the
bearing or bearing race is supporting a radial load.
I gotta say that from my point of view using a bearing retaining
compound in this application is just a quick and dirty
temporary fix, like if you wanted to dump the vehicle
on someone and didn't what to spend the cash to do it
right.
If it were me, the only repair that I would trust would be
reaming to take an over size bushing.
Denny Graham
Sandwich, IL
Last edited by Denny Graham; 11/22/2013 12:40 PM.
