---
kind: "section"
citation: "49 C.F.R. § 570.10"
title: "49"
number: "570.10"
heading: "Wheel assemblies."
url: "https://uscodex.org/cfr/49/570.10"
---

# §570.10. Wheel assemblies.

- (a) **Wheel integrity.** A tire rim, wheel disc, or spider shall have no visible cracks, elongated bolt holes, or indication of repair by welding.
  - (1) **Inspection procedure.** Examine visually for conditions indicated.
- (b) **Deformation.** The lateral and radial runout of each rim bead area shall not exceed one-eighth of an inch of total indicated runout.
  - (1) **Inspection procedure.** Using a runout indicator gauge, and a suitable stand, measure lateral and radial runout of rim bead through one full wheel revolution and note runout in excess of one-eighth of an inch.
- (c) **Mounting.** All wheel nuts and bolts shall be in place and tight.
  - (1) **Inspection procedure.** Check wheel retention for conditions indicated.

## Notes

### Amendments

[38 FR 23950, Sept. 5, 1973, as amended at 39 FR 12868, Apr. 9, 1974]

### Source

Source: 38 FR 23950, Sept. 5, 1973, unless otherwise noted.

### Authority

Authority: Secs. 103, 108, 119, Pub. L. 89-563, 80 Stat. 718 (15 U.S.C. 1392, 1397, 1407); delegation of authority at 49 CFR 1.50.

### Amendments

[38 FR 23950, Sept. 5, 1973, as amended at 39 FR 12868, Apr. 9, 1974]