Automobile Rubber Rings is one of the vital components in the car's wheel structure that plays an important role in the appearance, performance and safety of the vehicle. Tire rim; It is a metal part to which the car's tire is connected and responsible for the transmission of rotational force from the motor to the road surface.
The role of rim and tires in the car
Rings and tires not only add to the beauty of the car, but also play a key role in improving the performance and safety of the car, driving experience and reducing fuel consumption. These effects are:
Increase safety:
Rubber Rings play a key role in car control with balance and power transfer. Proper design and sufficient rim robustness can help reduce the risks of slip and increase stability in different road conditions.
Improved performance:
Lighter and more durable wheels can improve the handling of the car and provide better acceleration and braking. For example, aluminum rims or carbon fiber perform better than conventional steel rims because of their lower weight and proper strength.
Increase the beauty of the car:
In addition to the impact of the tire's beauty on the car, the rings also have a huge impact on the beauty of the car. Different designs and the use of different materials in the manufacture of the rim allows drivers to select luxury or sports models.
Surely driving:
The tire rings directly affect the performance of the steering system, suspension and fuel consumption. Incorrect selection of rings can increase pressure on the suspension, reduce driver dominance over the vehicle, tighten the steering wheel.
The car's tire structure structure
The rubber rim has a technical structure that, in addition to its beauty, maintains its quality. It should be noted that when choosing the type of ring, you should pay attention to your car's tire. Here's how to get to know this structure:
Ring Offset
Ring Offset is the distance between the center of the ring and the point on the wheel disc. The Ring Offset is divided into three types:
- Zero: When the wheel screws are exactly in the center of the ring.
- Positive: In most cars, especially front differential cars, it is seen. In this case, the width of the wheel and the hypothetical line of the center of the ring will be tied to the fender. These types of rings have advantages such as preventing rubber collisions with the edge of the fender and reducing pressure on the bearings and wheel screws. In this case, the width of the wheel and the hypothetical line of the center of the rim tend to be outward. The benefits of this type of rings include the car's wider and more stability. However, there may be disadvantages such as more pressure on the bearings and wheel screws, and the possibility of tires on the edges of the fender when rotating the steering wheel.
The circular diameter of the screws
The car's rubber rim is closed by the screws to the holes on the wheel disc. As much as the circular diameter of the screws; (PCD - Pitch Circle Diameter), which passes through the center of all coil holes and is usually measured in millimeters. For example: 120 × 120 PCD means that the rim has five screws with a circular diameter of 2 mm.
Valve valve
Valve STEm is a valve that is responsible for controlling the tire pressure on the outer edge of the ring. In the past, the valves were only designed as a plastic piece, but with the advancement of technology, the valves were equipped with advanced systems. One of these systems is TPMS (wind pressure announcement system), which informs the driver to reduce intra -tire pressure with internal cabin warnings.
Cap in the middle of the rim
Center Cap is a piece of plastic that covers the middle of the ring. This cap is easy to install, but to separate it, the ring must be removed from the car and removed from the inside by inserting pressure.
The screw pattern
The bolt pattern pattern refers to the number and order of the holes on the rim to connect to the wheel disk. Usually this pattern consists of 1, 2, 2 or 2 holes, depending on the type of PCD (circular diameter of the screws). Some rings, according to a special design, hide the screws behind the large caps in the center of the ring. These caps are usually attached to the rim with special screws.
Ring edge
Ring edge (LIP) refers to the outermost part of the rim sides. The edges are different based on the design of the ring. Some rings have a wider edge that is more common in sport rings. In this type of rims, the edge rings are called. You should always install wider edges on the rear axle and the thinner edges on the front axle. If the wheel falls into the pits, the first part that is damaged is the edges of the rim, which can usually be repaired in case of minor damage.
Rings blades
Ring blades are among the complex parts of the rim design that have the task of connecting the edges of the rim to the middle screen. These sections are designed in different designs based on the car model and weight computing. These blades also cause appearance differences in the rings. For this reason, designers design and produce a variety of blades according to customer needs.
Bump inhibition
The internal bumps of the ring that are behind the edges are called safety Hump. When installing tires, the air prevents the air from leaving the rim and tires, causing the tire to adhere more intense to the edges of the rim to prevent the wind from exiting.
The middle crater
The center of the center is called the central hole, which is equal to the diameter of the middle of the wheel disc and is usually calculated in millimeters. One thing to keep in mind is that the weight of the car is completely on this part and the middle edge of the disk. Therefore, the middle crater size of the rim must match the diameter of the disk edge. If the diameter of the rim is larger than the edge of the disk, it is used to match a piece called spigot.
