Originally Posted by
SweetMK
Well, when a guy makes a basic statement that is incorrect, you instantly question the rest of his statements.
In the antifriction bearing video, he starts off by stating the bearing is made up of an inner, and outer race that is "alloy steel" that is case hardened.
According to him, the race is tough inside, but, case hardened only on the outside.
My personal experience shows the bearing race is actually through hardened.
The way I know this is that there was a junkyard near where I lived as a child.
We would go get these bearings, BIG bearings, the balls were about an inch in diameter.
Well we wanted the balls, simply to play with, shoot with a sling shot, play marbles, all sorts of things.
Removing the stamped metal cage was one way to get at the balls,, but was VERY labor intensive.
I soon found that you could stand the bearing up on the concrete sidewalk, and hit it with a 10 pound sledge hammer.
The race was through hardened, and little more than a tap, and the bearing race would break like glass,,
( I was only 10 years old, I could not "swing" the sledge, I basically could only drop it,,)
THAT was the easy way to get at those balls.
So, the guy is totally wrong about material that the race is made out of,,, what else does he have wrong??