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Following the manufacturer's plant code, the next two digits within a DOT code signify the tire size. For instance, the size code "WC" might correspond to the tire size 205/55 R16. However, these size codes aren't standardized. Each tire manufacturer may assign these codes as they see fit, provided they maintain a consistent and explainable ...
Over the years Sumitomo and Dunlop developed a close business relationship, and in 1963 the Sumitomo Group acquired control of Dunlop Japan and renamed it Sumitomo Rubber Industries Ltd. In 1985, when Dunlop Rubber was taken over by BTR plc , the company acquired the automobile tire assets of Dunlop, including the right to use the Dunlop brand ...
Falken is a brand of passenger car, light truck, and medium truck tires owned by the Japanese company Sumitomo Rubber Industries (SRI). It was launched in its native country of Japan in 1983, and was introduced to the North American market two years later and in Europe in 1988.
Hoosier Racing Tire [39] USA: 1957 Hoosier: Hutchinson SNC [40] France: 1957 Hutchinson Tires Inoue Rubber [41] Japan: 1926 IRC Tires Kelani Tyres Sri Lanka: 1990 CEAT [42] Kenda Rubber [43] Taiwan: 1962 Kenda, Kenda radial Kumho Tires [44] [45] South Korea: 1960 Admiral, Marshal, Kumho, Zetum, Trailfinder [46] Madras Rubber Factory [47] India ...
In 1999, Sumitomo and Goodyear began a joint venture by which Sumitomo continued to manufacture all Japanese-made tyres under the Dunlop name, while Goodyear Tire and Rubber Company bought 75% of the European and North American tyre businesses of Sumitomo. [10] The company has extensive manufacturing operations throughout the world.
Sumitomo, along with Mitsubishi Heavy Industries, worked with the Department of Transportation of the Philippines for the rehabilitation of the MRT Line 3 in Manila from 2019 to 2021. Sumitomo previously maintained the line from 2000 to 2012, until the line was seen to be deteriorated in the following years due to poor maintenance. [14]
The inner width of the rim on which the tire is mounted should be about 65% of the tire's nominal section width for tires smaller than 30 mm and 55% for those larger. The section height of a tire is usually identical to its section width (for tires less than 28 mm, 2.5 mm have to be added to the width to get the height).
Rolling resistance is the main key factor in measuring the energy efficiency of a tyre and has direct influence on the fuel consumption of a vehicle. A set of tyres of the green class "A" compared to a "G" class can reduce fuel consumption by 9% [3] of a passenger car; even more for trucks.