I got some shots of the gruesome outcome inside the machine. The replacement bearing has been ordered through Sears Parts Direct and should be here in a week or two. Meanwhile, the carnage…
Here are some closeups of the broken bearing from the side where it opened up:
Note the broken cage and missing balls. No idea where they went:
The shaft was pitted beneath the bearing. At first I thought it was damage, and it may be, but I’m leaning a bit toward it being a deliberate roughing-up of the surface to help hold the bearing in place through its high-vibe activities. That’s the story I’m sticking with. let me know if you think otherwise.
I think if the bearing itself caused pitting, it would be more ‘smeared’ around the shaft. This doesn’t look ground in. It looks like someone took a pin and a hammer and banged in some dents somewhat evenly around the shaft before sliding on the bearing. I didn’t note any ground-up metal falling out from the bearing when I pulled it free with the gear puller. Again, who knows?
Here’s a blurry shot with my finger for scale:
The current, full gallery of pics in this mini saga is here.
-- Gary, Los Angeles, video game animator