30.20 Jun 23, 2026
ISO
ISO/TC 31/SC 6
International Standard
This document sets out the designation, contours and dimensions for rims for narrow- and wide-base off-road tyres primarily intended for earth-moving machinery.
All dimensions in this document are given in millimetres and are applicable to the side of the rim which is in contact with the tyre.
Tyre designations and dimensions, tyre classifications and nomenclature are given in ISO 4250-1, ISO 10571 and ISO 13442.
Annex A gives details on sealing ring grooves and O-rings for earth-mover rims.
PUBLISHED
ISO 4250-3:2020
IN_DEVELOPMENT
ISO/CD 4250-3
30.20
CD study/ballot initiated
Jun 23, 2026
Only informative sections of projects are publicly available. To view the full content, you will need to create an account. If you are a member, please log in to your account by clicking on the "Log in" button.