There are too many cases of throttle when the brakes, the throttle when the brakes in addition to the driver is not skilled, nervous, there is the car throttle and brake pedal together. Even though they all know that the throttle and the brake pedal are easy to increase the chance of "throttle when the brakes", then why do manufacturers have to do this? Originally from the first car, the throttle and the brakes have been designed together. It is because the driver's hand can only operate the steering wheel, and the throttle and brakes are handed to the feet. Therefore, putting the throttle and the brakes together is to allow the driver to use his foot to control one of the accelerator or the brake when he is driving, so that he can either accelerate or decelerate when he is driving, avoiding a throttle. At the same time, one foot tightly pressed on the brakes. So why not set the brake pedal to the left? That is because the clutch of the manual transmission needs to be controlled with the left foot; in addition, the driver of the automatic train can control the brake with the left foot, and can step on the brake without raising the foot, and the braking distance can also be shortened. In addition, when the throttle and the brake are on the same side, when a wrong step occurs, just lift the foot and press the other one immediately. There is also inertia in the society. If automakers need to make major changes to parts and components, they must get the support of consumers and suppliers. Moreover, people are already accustomed to using the right foot to control the throttle and the brake. If the position of the accelerator or the brake is changed, the chance of misstepping is even higher.
Conveyor Idler seals are used to keep substances such as grease and lubricant in, while keeping dirt, fluids, and other contaminants out. One advantage to this type of seal is that when small amounts of leakage occur across the seal, as is inevitable, contaminants from the outside still can't get all the way inside, and the materials being sealed may not make their way all the way to the other end. This minimizes fouling caused by mixing of contaminants and sealed fluids.
The Labyrinth Seal has a number of grooves which interlock with other grooves or teeth. This differs from most traditional seals, which use a single lip in an attempt to seal an opening. With the labyrinth seal, each groove acts as its own lip, distributing pressure across the seal rather than concentrating it in one area. While a labyrinth seal cannot deal with high pressure differentials, it can be used in many other types of environments.
Two of the most important things that must be accomplished in order to extend bearing life is to keep lubrication in, and contamination out. That`s the important function of a seal. There are many types of seals that can serve various functions.
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Why do you want to put aside throttle and brakes? Avoid serious mistakes!