Leon wrote:
"George E. Cawthon" wrote in message
...



I guess it is the terminology. But when you grease a wheel bearing you
don't remove the race.


Correct, and you are not replacing the bearing either. You are only
servicing it.



And when you replace a bearing, most sources also caution you to replace
the race.


Yes. Use every thing that comes in the the bearing box. The 2 pieces are a
matched set.

That caution

indicates that the race is separate.


Sometimes they are. 1 of the races is seperate. The inner race is a
permanent part of the bearing assembly. Rear wheel/axel bearings are often
all one piece with both races a permanent part of the bearing similar to the
one that the OP is asking about. It must be pressed off and on.

So is the

race a part of the bearing or is the cage and rollers the bearing?


Is the piston a part of the engine? Yes the race is a part of the bearing.
Front wheel bearings have, like most bearings, 2 races. One is permanently
attached to the bearing assembly, it rides on the spindle and the other is
press fit into the drum or rotor.


Regardless of the

terminology, the unit to change in a saw is one piece and in a car is two
pieces, so there is a considerable difference between a bearing for a saw
and a bearing for a wheel.


Typically the front wheel bearings on a rear wheel car are 2 piece. Front
wheel cars use 1 piece front wheel bearings. Rear axels on rear wheel drive
cars can have one piece or 2 piece. Rear axels on a front wheel car are
typically 1 piece. Almost always a serviceable bearing is 2 piece and
nonserviceable bearing is 1 piece.


There are all kinds of bearings including those
that have no bearing cages and all the parts are
separate. Did you want to also mention that we
were talking about roller or ball bearings? Or
should we also discuss babbitt and bronze
bearings? I think you just like to argue and
complicate the issue.

The point is that most people are familiar with
bearings on the non-driven wheels of cars (front
or rear) which have bearing cages that fall out
when you remove the brake drum or disk. Removal
and replacement of the outer race is obvious or
should be to anyone with a little experience.

Some saws may not have one piece bearings but I
bet most are single piece, permanently lubed, and
sealed or shielded. To someone who has never
changed bearings on a saw, it is not at all clear
how to get the bearings out and it certainly won't
be immediately obvious how to press the bearings
onto the shaft and into the bearing holder without
damage to the bearing.