ISO 18804:2017 pdf free
ISO 18804:2017 pdf free.Rims for agricultural, forestry and construction machines
This document specifies rim dimensions for rims for agricultural, forestry, and construction machines.
All dimensions in this document are given in millimetres and are applicable to the side of rim which is in contact with the tyre during the mounting and in service.
NOTE Terms used are in accordance with ISO 3911.
2，Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
一IEC Electropedia: available at http://www.electropedia.org/
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4 Rim diameter and circumferences
Nominal rim diameter codes, DR, are shown in Table 1 related to the specified rim diameter given in Figure 1.
For rim diameter measurements, see Annex A.
A tolerance of ±1,2 mm on the rim circumference is permitted.
Rim diameter measurements shall be performed using a ball tape checked on a mandrel (see Figure A.1).
The ball diameter should usually be 16 mm. Ball sizes other than 16 mm may be used if a suitable alteration to the mandrel diameter and circumference dimensions is made (see Table A.1). It will be left to the discretion of the individual national standards organization whether the mandrel shall have nominal or maximum circumference.
This annex has been drafted to recognize the existence of the 15.3 and 16.1 rim diameter codes only.
These diameter codes are not standardized in all regions.
The technical data of the formerly standardized rims with nominal diameter codes 15.3 and 16.1 are given in B.1.1 and B.1.2.
This annex has been drafted to recognize the existence of the 15.5, 16.5, and 17.5 rim diameter codes only. These diameter codes are not standardized in all regions.
The technical data of the formerly standardized rims with nominal diameter codes 15.5, 16.5, and 17.5 are given in C.1.1, C.1.2 and C.1.3.ISO 18804 pdf download.
