| Re: Technical Discussion Train Dude not Knowing Vocabulary. (693876) | |||
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Re: Technical Discussion Train Dude not Knowing Vocabulary. |
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Posted by Jeff H. on Mon Oct 13 19:00:57 2008, in response to Re: Technical Discussion Train Dude not Knowing Vocabulary., posted by JournalSquare-K-Car on Mon Oct 13 18:05:08 2008. No, oddly enough Train Dude does have some command over railroadtechnical vocabulary. Go figure. Technically the "journal" is a surface on a shaft which has been precision ground to mate with a friction bearing. On a powered axle, in addition to the journal surfaces for supporting the car body weight, there are journals for supporting either the traction motor, if axle-hung, or the gearbox unit. But in railroad usage, "journal bearings" always refer to the load-supporting bearings near the wheels. Even when those bearings are of a roller design. |