4.2.5. Identification ободьев and tires

NOTE The identification code is engraved on a rim and contains important data on the size of a rim.

NOTE The code can have the full or reduced form (for example, 6 J 16).

It is not allowed at a design with «the raised useful loading».

2) Are resolved only as winter tires.

Each tire can be identified on the basis of its designation.

For car tires at speed to 270 miles/h in Europe there is a norm of ECE-R 30. It contains the most important characteristics of tires. Besides for North America there are additional designations.

Designation of tires, see drawing below, a position 9: 185/60 R 14 87 T, concern the radial tire.

1–Position of the index of wear (TWI = Tread wear indicator), height of 1,6 mm.

2–Manufacturer.

3–The instruction on special suitability for operation in a winter mode.

4–Designation of drawing of a protector.

5–Designation for tubeless tires (Tubeless).

6–Expected service life according to the test of the USA (180 = 180 %).

7–Determination of efficiency of wet brakes (A, B or C) according to the test of the USA.

8–Determination of thermal stability at higher speeds (A, B or C) according to the test of the USA.

9–Designation of the sizes (185/60 R 14 87 T).

185-Width of the tire in mm (nominal width).

60-Ratio of height of cross-section section and width of the tire as a percentage.

R–Radial design.

14-Diameter of a rim in inches [«].

87-A symbol of a permissible load on the tire (Load Index) for 545 kg.

T – the Symbol of speed for at most 190 miles/h; the additional alphabetic coding, see the publication «Pressure of air in tires» KTA 2625/02 or TIS.

10-Instructions on safety when using or tire installation (these USA).

11-Radial design.

12-Quantity and a material of layers in the middle of a running surface and боковины.

13-Sign of compliance to norms on the European instruction ECE-R 30. The sign "E4" can testify also that the tire passed certification according to the instruction of 92/23 EU, and figure «4» designates the Netherlands.

14-Internal code of the manufacturer.

15-The data concerning the most permissible load and the most admissible pressure of air for North America.

16-The sign DOT according to instructions of the American governing bodies transport («Department of Transportation» – «Transport Department»).

17-The sign DOT for manufacturer, the size of the tire and tire execution.

18-Manufacturing date (here the 1st production week 2000). This code consists of 4 figures, two correspond to week, and two – year.

19-Designation of the size (as position No. 9).

20-Country manufacturer.