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History of Ball Bearings by NASA, 1981 Posted on 13 Feb 19:00

An older writing, but it has a good level of thoroughness. Its for those of us who really enjoy history and mechanical devices. Free pdf download!

History of Ball Bearings by NASA, 1981


Mix and Match Discounts On Inch Dimension Seals! Posted on 17 Feb 23:36

You now get bulk discounts when combining multiple sizes.

Bulk discounts kick in with as few as ten seals.

 

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