ISO 4000-2:2007 pdf download – Passenger car tyres and rims — Part 2: Rims.
1 Scope This part of ISO 4000 specifies the designation, contour and dimensions of 5° tapered (drop-centre) rims primarily intended for passenger cars. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3911, Wheels and rims for pneumatic tyres — Vocabulary, designation and marking 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 3911 apply. 4 Designation and marking The rim shall be designated by its nominal rim-diameter code, nominal rim-width code and rim, flange type (e.g. 15 ¥ 6 J or 13 ¥ 5.50 B).
6 Valve holes 6.1 General Valve hole edges on the tyre side of rims shall be rounded or chamfered; valve hole edges on the weather side of rims shall be free from burrs that could damage the valve. 6.2 Snap-in To provide for adequate sealing, an unbroken smooth inside surface having at least 0,75 mm or 25 % of rim thickness, whichever is greater, shall be maintained. Suitable valves shall be used. Valve hole details for snap-in valves shall be as shown in Figure 3 or 4 for rims with 17,3 mm minimum well depth. 6.3 Other valves Holes for other valves are under consideration.