49 CFR 230.99 - Tender truck axles.

Regulations last checked for updates: Nov 22, 2024

Title 49 - Transportation last revised: Nov 18, 2024

§ 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 1/2	7 3/8	6 7/16
38000	5	6 3/4	5 7/8
31000	4 1/2	6 1/4	5 5/16
22000	3 3/4	5	4 3/8
15000	3 1/4	4 5/8	3 7/8

authority: 49 U.S.C. 20103,20107,20702; 28 U.S.C. 2461 note; and 49 CFR 1.89

source: 64 FR 62865, Nov. 17, 1999, unless otherwise noted.

cite as: 49 CFR 230.99