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  • ...in Detroit MI and then as laboratory assistant to a metallurgist at a ball bearing company in Ann Arbor MI. After her son David was born she became a full tim
    2 KB (329 words) - 04:47, 23 June 2021
  • ...ed on a correspondingly [[threaded rod]] supported by plain and threaded [[Bearing (mechanical)|bearings]]. While the cylinder was rotated and slowly progress ...n isolation. The spindle bearing usually consisted of a [[bronze]] [[plain bearing|bushing]]. The flange on the stamping provided a convenient place to drive
    115 KB (17,286 words) - 16:32, 16 December 2018