Get To Know A Little More About Tires

In the days before rubber was invented, tires were simply metal bands that were attached to wooden wheels to avoid wear and tear. Currently, virtually all tires are pneumatic, inflatable objects composed of donuts, such as wire and cord bodies contained in rubber and filled with compressed air. These tires are used for various moving objects such as cars, aircraft, motorcycles, bicycles, and earth movers. Tire production standards are relatively standardized worldwide, with over 1 billion tires produced each year.

Tire parts

Tread-This is the portion of the tire that is exposed to the ground. Consists of a very thick rubber designed to provide an appropriate level of traction that does not wear out quickly. Lug, groove, sipe, and void geometry characterize the tread pattern. The ditch helps escape water and circulate around the tire. While the lug serves to contact the road surface, the void is the space between the lugs and allows the lugs to contract and drain water. The sipe is usually a valley-like cut across the tire perpendicular to the groove, and water from the groove escapes through the sides, preventing hydroplaning.

Tread lug-This provides the necessary contact surface to provide traction. When entering the contact area, the tread lugs are compressed. When the contact area of ​​the footprint is rotated, it deforms in the circumferential direction, and when it leaves the contact area, it returns to its original shape. During this cycle, the tire applies various forces to the car, which is called force variation.

Tread Void-Provides space for the lug to deform and bend as the lug enters and exits the contact area. In addition, the void provides a channel for rainwater, snow, and mud to be removed from the footprint.

Rain gutter-This is the design aspect of the tread pattern in particular, and is specifically arranged to drain water from the contact area.

Wear bar-The wear bar is a raised indicator located at the bottom of the tread groove, indicating that the tire has reached its wear limit.

Bead-This is the part that fits the rim of the wheel. Usually blended with low-flexibility, high-strength rubber and reinforced with steel wire.

Ply-ply is a layer of cord that does not stretch and is fixed to rubber, and maintains its shape by preventing expansion and contraction due to internal pressure.