| 摘要 |
The pneumatic tyre is made in accordance with simplified technology and has better adhesion qualities. It reduces the great soil packing and the formation of deep ruts. The tyre has a tread, carcass of textile cord and bead. The height of profile (2) is from 220 to 240 mm, the outer diameter (3) is from 1160 to 1200 mm, the radius of the side part (7) is from 235 to 385 mm, and that of the bead (8) is from 10 to 15 mm. The depth of the central groove (9) is from 33 to 38 mm, the crown of casing (4) is from 20 to 30 mm, the ratio between the width of casing (4) and profile (1) is 0.920-0.950, between the distance betwen the toes of the bead (5) and the width of profile (1) is 0.930-0.990, and between the crown of casing (10) and the width of profile is 0.089-0.0950. THe width of profile (1) is from 240 to 280 mm, and of casing (4) is from 220 to 280 mm. The distance between the toes of bead (5) is from 230 to 280 mm, and the radius of casing (6) is from 300 to 350 mm. The ratio between height (2) and the width of profile (1) is 0.850-0.890 and of the crown of casing (10) and the hight of profile (2) is 0.100-0.110.
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