---
kind: "section"
citation: "49 C.F.R. § 229.57"
title: "49"
number: "229.57"
heading: "Foundation brake gear."
url: "https://uscodex.org/cfr/49/229.57"
---

# §229.57. Foundation brake gear.


A lever, rod, brake beam, hanger, or pin may not be worn through more than 30 percent of its cross-sectional area, cracked, broken, or missing. All pins shall be secured in place with cotters, split keys, or nuts. Brake shoes shall be fastened with a brake shoe key and aligned in relation to the wheel to prevent localized thermal stress in the edge of the rim or the flange.


## Notes

### Authority

Authority: 49 U.S.C. 20103, 20107, 20133, 20137-38, 20143, 20168, 20701-03, 21301-02, 21304; 28 U.S.C. 2461 note; and 49 CFR 1.89.

### Source

Source: 45 FR 21109, Mar. 31, 1980, unless otherwise noted.