Murph Wrote:
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> Speaking of axles being turned down too much, how
> is the limit calculated?
Per FRA rule:
"ยง230.98 Driving, trailing, and engine truck axles.
(a) Condemning defects. Driving, trailing, and engine truck axles with any of the following defects shall be removed from service immediately and repaired (see appendix A of this part for inspection requirements):
(1) Bent axle;
(2) Cut journals that cannot be made to run cool without turning;
(3) Transverse seams in iron or steel axles;
(4) Seams in axles causing journals to run hot;
(5) Axles that are unsafe on account of usage, accident or derailment;
(6) Any axle worn 1/2 inch or more in diameter below the original/new journal diameter, except as provided in paragraph (a)(7) of this section;
(7) Any driving axles other than main driving axles with an original or new diameter greater than 6 inches that are worn 3/4 inch or more in diameter below the original/new diameter.
(b) Journal diameter stamped. For steam locomotives with plain bearings, the original/new journal diameter shall be stamped on one end of the axle no later than January 18, 2005."
Also per calculations from the AAR, and ALCO Standard Practice.
There's more than one way to skin a post!
Edited 4 time(s). Last edit at 06/18/2020 09:35AM by Kelly Anderson.