Car tire iron

KEN-34645

Ken-Tool Classic T45A Tubeless Tire Irons (Ea)

$67.73

KEN-32114

Ken-Tool Tire Irons w/ Handle Set for Small Tire (2pc)

$38.85

KEN-35447

Ken-Tool Super Serpent Mount/Demount Tool

From $94. 45

KEN-33195

Ken-Tool Nineteen-Five Mount/Demount Set For 19.5 in Tires

$199.95

KEN-34748

Ken-Tool "B" Extension for Use With "C" Tire Bar (Ea)

From $78.70

KEN-35453

Ken-Tool 35453 Serpent Tire Changing Set (4pcs)

$271.85

KEN-34749

Ken-Tool Offset Mount "C" Tire Bar (Ea)

From $56.27

KEN-35450

Ken-Tool T2002 Serpent Mounting Tubeless Tire Tool

$59.64

KEN-35446

Ken-Tool 35446 Super Serpent Tire Changing Set (5pcs)

$363.19

KEN-32115

Ken-Tool Tire Irons with Handle for Small Tire (Ea)

From $24. 62

KEN-39806

Ken-Tool Euro Style Tire Iron Tools (Ea)

From $40.74

KEN-33199

Ken-Tool Nineteen-Five Mount/Demount Bar (Ea)

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Ken-Tool T2001 Serpent Demount Tool

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Structure of a wheel and arrangement of a car tire for beginners

Let's talk about the structure and arrangement of a car wheel. What is a wheel and what is a tire. What is the difference between a radial tire and a diagonal tire? Information for novice motorists and dummies.

Wheel structure

Wheels provide movement by converting rotation into translational motion of the machine. They perceive and smooth out impacts from bumps on the road surface. Controllability, stability and smoothness depend on them. nine0003

According to the purpose, the wheels of the car are divided into driving, driven, driven and combined (simultaneously driving and driven). The wheel consists of:

• rims - a tire is mounted on it;
• bead ring - hold the tire on the wheel and acts as a lock ring;
• wheel disk - there are stamped, forged, cast and composite (for trucks). On the disks of the wheels, conical holes are made, with which the wheel is mounted on studs or nuts. Coincidence of cones of nuts and holes on disks provides exact installation of wheels; nine0012
• tires.

Car wheel device: 1 - wheel disk, 2 - rim, 3 - bead, 4 - chamber, 5 - sidewall, 6 - cord, 7 - protector.

Tire structure

It is chambered or tubeless. In the chamber there is a rubber chamber filled with air. A tire without a tube is called a tire. The tire consists of a carcass (cord) and tread, as well as sidewalls and beads.

The carcass is the main part of the tire, its power base. It is made of several layers of special fabric - cord. It perceives the pressure of compressed air from the inside and the load from the road outside. Cord material can be: cotton, metal wire, nylon, fiberglass and other materials. nine0003

The optimal solution is a breaker with cords twisted from thin steel wires. Compared to textile, this cord has many times less stretch. But there are disadvantages: it is less tolerant of loads on low-frequency coverage. If, during a tire puncture, water enters the breaker, especially with chemicals, it quickly collapses from corrosion.

An alternative is the use of synthetics, which has the advantages of textile threads, but does not have the disadvantages of steel rods. nine0003

The tread (treadmill) is a thick layer of rubber with a specific pattern. It is located on the outer surface of the tire and is in direct contact with the road surface. The tread pattern can be for good roads (use a small pattern), universal and special for off-road (large tread pattern). In winter, spikes are used in the tread.

A tubeless tire does not have an air bladder. The cavity between the tire and the rim is sealed, because directly filled with air. Therefore, the disk of a tubeless tire differs from the usual one by the presence of sealing beads (bead ring) on ​​the rim. If you use tires with a chamber, then any discs will do, the beads will not interfere. nine0003

Diagonal and radial design

In diagonal tires , the cords are crossed, the angle of inclination is 35 - 38 °. They connect the sidewalls of the tire diagonally. Such tires are found only for trucks and special equipment.

In radial tires , the cords are at right angles to the beads. The main advantages are: good grip, low rolling resistance and long service life. Radial tires are more modern than diagonal tires. They are used on modern cars. With them, the car is more stable on the road, more economical and more dynamic. nine0003

In order for the tread to hold the road well, it must adapt to its unevenness - be flexible enough. What the frame cord almost does not interfere with. But the deformation of the sidewall of the tire is not desirable - it worsens the control of the car.

• What car tires are made of

To solve this problem, an additional power ring of several layers of cord is used. It is called a breaker, it does not allow strong deformations in the lateral direction. In order for the breaker to have the necessary rigidity, the threads in it are not laid radially, but diagonally. nine0003

Marking

On the sidewall of the tire, you can see the inscription 185/60 R15. This means:

• 185 - its width in millimeters,
• 60 - the ratio of the height of the tire to its width in percent,
• R - radial design (with radial threads),
• 15 - Bore diameter in inches (one inch equals 2.54 centimeters).

The mistake of many motorists is the delusion that the letter R in the marking indicates the radius. This letter has nothing to do with the number 15. She indicates that this rubber is of a radial design, in contrast to the obsolete diagonal ones. And the number 15 is the landing diameter along the rim of the wheel. 15 inches = 381 mm. nine0003

5 signs of dangerous tire wear on a car . Certain damage to the new rubber or the degree of wear of the old one can be compared to a time bomb. Moreover, some really extreme defects do not manifest themselves in any way while driving, but at some point they can cause the most serious accident. nine0003

Ivan Flyagin

Never forget that tires are a consumable item that has its own lifespan. Often, due to unbearable loads and serious injuries, they “die” ahead of time, and the sooner you see the symptoms of a deadly disease, the better.

Tread wear

The most common phenomenon that older tires are subject to is tread wear. According to the traffic rules, its residual depth on summer tires for passenger cars should not be lower than 1.6 mm. Recall that initially this value is 7.5 - 8.5 mm. In new winter tires, the pattern height varies from 9up to 15 mm, and the acceptable minimum norm is 4 mm.

Please note that tires often wear unevenly, so measuring the tread depth is necessary along the entire length of the pattern, and this should be done by professionals using special tools. If your tires have the specified parameters below the norm, it is better to get rid of them urgently.

Bare cord

Recall that between the tire tread and its carcass there is a breaker consisting of cord layers. If it shows through the wear on the old rubber, then this is the extreme stage of tire wear, which is long overdue for recycling. On a new product, the cord from a deep cut may also be exposed. In both cases, operation is extremely dangerous, since a defect in the breaker will lead to deformation and gradual destruction of the tire structure. nine0003

Herniation

Internal damage to the tire carcass can cause a herniation. Usually swelling occurs from strong impacts of wheels on the edges of pits and high bumps. Although it happens that this is a consequence of a manufacturing defect, as a result of which there was a delamination of the frame. In any case, the presence of a hernia indicates a slow leakage of air from the internal cavity into the tire body, which at any time is fraught with its instant rupture.

Cracks

Cracks usually occur on worn tires when hitting potholes and bumps. Even if they are small and shallow, it is still a call to change tires. Under the influence of external factors, they gradually grow and reach the cord, as a result of which the breaker layer undergoes corrosion and further destruction.

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