9621 Agnes Crossing, Lake Suzanneview, New Mexico Island 84604-9295.
These are not easy times, every cent counts. Of course, economic reality also influences the maintenance of the car. Today the owner wants to save money: buy cheaper
The lifespan of a car is directly dependent on the quality and frequency of maintenance. Hundreds of thousands of kilometers on the odometer mean much less than irregular maintenance with mediocre consumables. Identical machines serve different owners in different ways: half of the resource is provided by the manufacturer and half by the owner. Saving on consumables – reduced resources, there is a direct correlation. However, there are systems where the savings will have immediate consequences; Road safety in general and the risk of an accident in particular depend on it. We are of course talking about the brakes.
The braking system is a fairly simple unit, the structure of which is basically the same for every car: pedal – vacuum unit – GTZ/wizard – lines – brake fluid – brake caliper – brake pad – disc/drum. Features and additional elements are accents on the portrait, which do not change its essence. But initial simplicity is the key not only to longevity, but also to high demands on every element of the system. The same brake fluid, which is hygroscopic, must be changed regularly, otherwise one day, at the most necessary moment, you will no longer be able to press the pedal. What can we say about the pads! However, it is necessary to talk, because many car owners, after shrugging their shoulders, make the fatal mistake of choosing not an original spare part, but a cheaper analogue.
A simple example is the popular GAZelle-3302, spare parts for which are made by a large number of manufacturers. In fact, the “iron horse” on which all domestic small businesses and millions of people ride. And, it seems, what could be so special about a simple block? A curved metal plate with a friction lining on it. The operating principle is extremely simple: converting kinetic energy into thermal energy.
When braking, due to the correct operation of the entire braking mechanism, the shoe is pressed against the inner surface of the brake drum, creating a friction force. In this case, the friction pair of the block drum heats up to 200 °C, absorbing kinetic energy, and the machine stops. Space technologies are not expected to be so simple, but even here “allied companies” and manufacturers of analogues are “playing a game.”
It must be said that spare parts are rarely tested in Russia: imported manufacturers routinely recommend exclusively branded products without disclosing the reasons, and Russian companies seem to be ashamed to talk about themselves. On the other hand, the same Gorky Automobile Plant has its own full laboratory, where they regularly conduct research not only on their own consumables and car parts, but also on the products of other companies that produce analogues.
Unfortunately, such checks show again and again that sometimes beautiful boxes are full of products produced with monstrous design violations! The AvtoVzglyad portal received the results of tests by factory workers of brake pads from a third-party manufacturer – unfortunately, “miracles” could not be avoided with these elements of the braking system.
For example, it turned out that it is simply impossible to check the radius of the pad sphere, because the part does not touch the rollers on special measuring equipment. She’s crooked! With the thickness of the metal it is no better: the thickness of the cushion rib is 4.5 mm instead of 5±0.2 mm, the thickness of the rim is 2 mm instead of 3.5±0.2 mm – as with the original part.
Serious cases of non-compliance of materials and their processing with the requirements of design documentation were also revealed. The steel quality of the block ribs is therefore 15SP, while the original parts use quality St.25. The hardness of the paved areas is less than 20HRC with the required 32HRC. Read, the required areas were not actually paved! Of course, tests are not limited to measurements alone. The pad was tested “in action”: the force at which the adhesive bond between the friction lining and the pad would be broken was determined using a tensile testing machine. The failure of the edge already occurred when a load of 3000 kgf was applied, with a minimum load of 3500 kgf according to the design documentation.
It is autumn, the asphalt is covered with puddles and fallen leaves, and in some areas snow has already fallen. The braking distance has increased by itself solely due to weather and climatic reasons, but if you also “tamper” with the braking mechanisms in the pursuit of our eternal savings, then the reason to fervently regret your shortsightedness will arise much sooner. than necessary. seems. Unfortunately, this happens all the time.
The lifespan of a car is directly dependent on the quality and frequency of maintenance. Hundreds of thousands of kilometers on the odometer mean much less than irregular maintenance with mediocre consumables. Identical machines serve different owners in different ways: half of the resource is provided by the manufacturer and half by the owner. Saving on consumables – reduced resources, there is a direct correlation. However, there are systems where the savings will have immediate consequences; Road safety in general and the risk of an accident in particular depend on it. We are of course talking about the brakes.
The braking system is a fairly simple unit, the structure of which is basically the same for every car: pedal – vacuum unit – GTZ/wizard – lines – brake fluid – brake caliper – brake pad – disc/drum. Features and additional elements are accents on the portrait, which do not change its essence. But initial simplicity is the key not only to longevity, but also to high demands on every element of the system. The same brake fluid, which is hygroscopic, must be changed regularly, otherwise one day, at the most necessary moment, you will no longer be able to press the pedal. What can we say about the pads! However, it is necessary to talk, because many car owners, after shrugging their shoulders, make the fatal mistake of choosing not an original spare part, but a cheaper analogue.
A simple example is the popular GAZelle-3302, spare parts for which are made by a large number of manufacturers. In fact, the “iron horse” on which all domestic small businesses and millions of people ride. And, it seems, what could be so special about a simple block? A curved metal plate with a friction lining on it. The operating principle is extremely simple: converting kinetic energy into thermal energy.
When braking, due to the correct operation of the entire braking mechanism, the shoe is pressed against the inner surface of the brake drum, creating a friction force. In this case, the friction pair of the block drum heats up to 200 °C, absorbing kinetic energy, and the machine stops. Space technologies are not expected to be so simple, but even here “allied companies” and manufacturers of analogues are “playing a game.”
It must be said that spare parts are rarely tested in Russia: imported manufacturers routinely recommend exclusively branded products without disclosing the reasons, and Russian companies seem to be ashamed to talk about themselves. On the other hand, the same Gorky Automobile Plant has its own full laboratory, where they regularly conduct research not only on their own consumables and car parts, but also on the products of other companies that produce analogues.
Unfortunately, such checks show again and again that sometimes beautiful boxes are full of products produced with monstrous design violations! The AvtoVzglyad portal received the results of tests by factory workers of brake pads from a third-party manufacturer – unfortunately, “miracles” could not be avoided with these elements of the braking system.
For example, it turned out that it is simply impossible to check the radius of the pad sphere, because the part does not touch the rollers on special measuring equipment. She’s crooked! With the thickness of the metal it is no better: the thickness of the cushion rib is 4.5 mm instead of 5±0.2 mm, the thickness of the rim is 2 mm instead of 3.5±0.2 mm – as with the original part.
Serious cases of non-compliance of materials and their processing with the requirements of design documentation were also revealed. The steel quality of the block ribs is therefore 15SP, while the original parts use quality St.25. The hardness of the paved areas is less than 20HRC with the required 32HRC. Read, the required areas were not actually paved! Of course, tests are not limited to measurements alone. The pad was tested “in action”: the force at which the adhesive bond between the friction lining and the pad would be broken was determined using a tensile testing machine. The failure of the edge already occurred when a load of 3000 kgf was applied, with a minimum load of 3500 kgf according to the design documentation.
It is autumn, the asphalt is covered with puddles and fallen leaves, and in some areas snow has already fallen. The braking distance has increased by itself solely due to weather and climatic reasons, but if you also “tamper” with the braking mechanisms in the pursuit of our eternal savings, then the reason to fervently regret your shortsightedness will arise much sooner. than necessary. seems. Unfortunately, this happens all the time.
Source: Avto Vzglyad
Donald Salinas is an experienced automobile journalist and writer for Div Bracket. He brings his readers the latest news and developments from the world of automobiles, offering a unique and knowledgeable perspective on the latest trends and innovations in the automotive industry.
