Deerfield & Roundabout Railway Track & Wheel Data
(Scroll down for drawing notes. Revision 08-15-2011)
Additional notes for drawing DRTRK3 Figure B2 (Revision 08-15-2011)
1. Wheel tread, flange throat radius and flange angle shall be produced using D&RRY 3/32 inch nose radius carbide insert tool.
2. Flange radius shall be produced using D&RRY 3/32 inch flange radius form tool.
3. Finished tolerances of flange throat radius and flange radius shall be governed by tolerances specified for cutting tools.
4. A step in the flange radius shall not be permitted adjacent to the flange angle or adjacent to the back of the flange.
5. See Note 5 drawing DRTRK3 Figure A.
6. Definition of flange angel from The American Public Transportation Association document APTA SS-M-015-06 Edited 1-16-07.