Tire rotation is the practice of moving the wheels and tires of the car from one position to another, to ensure even wearing a tire. Even tire wear is desirable to extend the life of a set of tires.
The weights on the different front and rear axles are causing uneven wear. With the majority of cars having engines in front, the front tires are usually heavier than the rear tires. The front-wheel drive vehicle not only has the engine but also the transaxle in front, adding to the weight differential. In addition, additional pressure is disproportionately placed on the front tires by braking and steering. Thus, tire rotation needs to occur more frequently for front wheel drive vehicles.
Rotating the vehicle will cause uneven tire wear. Outside, the front tires are used disproportionately. In countries with right traffic, for example, the right turn is firmer than the left turn and most of the clover-leaf intersections and parking ramps are the right curve, so the left front tires wear faster than the right front, since the left tire runs larger distances at around the turn (the same way as an athlete on the far left path should run farther around the oval track than the rightmost path if the race goes clockwise from the beginning of the flat line) and the majority of the rounds will be right. Conversely, the sidewall on the right tire tends to crash and rub against the sidewalk when parking the vehicle, causing asymmetric sidewall wear. The opposite is symmetrical in countries driving on the left.
In addition, mechanical problems in the vehicle can cause uneven tires. The wheels are not parallel to each other and/or with the axle of the vehicle will tend to be dragged by other wheels, causing uneven wear on the tire. If the alignment is such that the vehicle tends to rotate, the driver will correct by controlling the trend. Actually the vehicle kept spinning, causing uneven tires.
The car manufacturer will recommend the frequency and tire rotation pattern. Tire rotations are often recommended every 5,000 miles (8,000 km) up to 8,000 mi (? 13,000 km), but this will differ between tire and car manufacturers. The rotation pattern usually moves the rear wheels forward, and front to back, but crosses as it moves backwards. If the tire is not unidirectional, the rotation can only be rotated front to back on the same side of the vehicle to maintain the tire rotation direction. Most direct tires can be moved from side to side if they are replaced; tires with asymmetrical rims are rare exceptions. A more complex rotation pattern is required if the vehicle has a full-size reserve tire that is part of the rotation, or if there is a snow tire.
Paradox for maximum traction, the best tires should be stored in the rear wheel of the vehicle, whether it's front or rear wheels. The reason for this is that if the rear wheels lose the handle before the front, an oversteer condition will occur, which is more difficult to control than the corresponding understeer will happen if the front wheel is lost. This also happens if the tire explodes, so the intuitive belief that the front driving/driving tire should be the best quality is not the case. The rear tire explosion will cause the vehicle to be extremely difficult to control, especially at highway speeds. This also greatly increases the risk of rollover due to yawing, the condition in which the rear of the vehicle is swinging out and being perpendicular to the direction of travel. Yawing will cause the tire to separate from the rim, the rim can then dig into the sidewalk, or dirt and grass if the vehicle is no longer on the road, which will drive the vehicle and cause rollover.
In some cases (eg, BMW), car manufacturers may advise not to rotate the tires at all. In addition, some vehicles are designed (or replaced) with front and rear wheels of different sizes and rotating treads in the same direction, so rotation is not possible.
Video Tire rotation
References
Source of the article : Wikipedia
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