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The design of the radial tire
| Fig. 4.20. The cross section of the radial tire 1 - block tread; 2 - the tread groove; 3 - the protector; 4 - nylon bandage; 5 - layers of cord; 6 - bead core; 7 - Power board; 8 - protection board chimes
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Nylon belt 4 layers of cord 5, bead cores 6 and 7 amps side base frame. The frame is a "supporting member" of the tire.
Damage from shock The bulge in the sidewall of the tire indicates damage to the carcass.
Typical "culprits" of such damage are, for example, when driving over curbs are at an acute angle (Fig. 4.21). Because of this, the frame may be damaged so much compressed bus. The tire carcass thus strongly stretched, resulting in the rupture of the individual fibers. The scale of the damage depends on the speed and angle of impact, the tire pressure, axle load and the type of obstacles.
| Fig. 4.22. Traces of impact / crushing in the sidewall
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NOTE Travel to borders should be avoided. If you enter the border will still be required, it should be across the edge at an obtuse angle to move very slowly. |
| Fig. 4.23. The tire with torn frame, inside view
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Because of the strong impact from the board to pinch the frame rim and break at the point of contact (Fig. 4.23).
The internal tire damage due to stroke (double-break)
Double gap that occurred as a result of compression when driving over a curb, often invisible from the outside (Fig. 4.24).
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