"Mike Marlow" wrote:

Correct me if I am wrong, but isn't brinelling more common or more
likely on roller bearings than on ball bearings? As I understand
it, in order to cause brinelling, you have to exceed a rated force
of the bearing against the race. This is not likely in seating ball
bearings, but it is likely if improperly installing roller bearings.

An arbor press exists for a reason.


Agreed.
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It is very easy to brinnel a ball bearing if proper installation
techniques
are not followed.

If the installation load to seat the ball bearing gets applied from
the outer
race, across the balls to the inner race, or vice versa, brinnelling
is
almost guaranteed to happen.

The load rating of the ball bearing is for a bearing operating at
rotating
RPM and load, not the static load that happens when the bearing is
improperly installed.

As far as tapered roller bearings are concerned, have been in a couple
of
Timken plants but never got involved in a design application so can't
comment on tapered roller bearings from an engineering stand point;
however, the installation methods are totally different and would not
be subjected to the installation brinelling experienced by ball
bearings.


Lew