49 CFR § 230.99 - Tender truck axles.
§ 230.99 Tender truck axles.
The minimum diameters of axles for various axle loads shall be as follows:
| Axle load (in pounds) | Minimum
diameter of journal (in inches) |
Minimum
diameter of wheel seat (in inches) |
Minimum
diameter of center (in inches) |
|---|---|---|---|
| 50000 | 5
|
7
|
6
|
| 38000 | 5 | 6
|
5
|
| 31000 | 4
|
6
|
5
|
| 22000 | 3
|
5 | 4
|
| 15000 | 3
|
4
|
3
|