Funny I was thinking about making those bearings just a few days ago. I watched the video twice and see how they assemble the inner outer races separately and all then push them together.
Butttttt the raceways are tighter in circumference than the balls are in diameter meaning that if you remove the spacers the balls won't fall out, just run together it seems to me. When I go out in the shop today I am going to disassemble one and just prove/disprove the point to myself. Obviously I don't realize something because they do push them together and do it billions of times a year for 100s of years!!!!!!
Other thing is how many processes and sophisticated low tolerance machines are required to produce one bearing and it sell at retail for $10, like for a 6302 for example.
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Today's Featured Article - Tuning-Up Your Tractor: Secondary Ignition Wires and Distributor - by Curtis Von Fange. In our last episode we spent the entire day checking out the spark plugs. Is that efficency? Actually, it took more time to explain than it really did to do the inspection. At any rate we decided that a compression test was in order so we could verify the internal engine status. That way we wouldn't buy any tune up parts until we were sure that the engine was in reasonable mechanical condition. Our tests showed a fictional compression reading of 85, 80, 82 and 86 psi. That is well within a
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