Search results
Results From The WOW.Com Content Network
As tires are used, the tread is worn off, limiting its effectiveness in providing traction. A worn tire can often be retreaded. The word tread is often used casually to refer to the pattern of grooves molded into the rubber, but those grooves are correctly called the tread pattern, or simply the pattern. The grooves are not the tread, they are ...
This wear pattern was one reason for the practicing of rotating tyres between wheels, so that they spent equal periods wearing in each direction. Later, and better, patterns were the Dunlop 'Traction' tread pattern of 1922 and the 'Triple stud' pattern of 1927. These followed the same principle of a solid central rib with square-edged blocks ...
Tread worn away completely: especially when the wear on the outer rubber exposes the reinforcing threads within, the tire is said to be bald and must be replaced as soon as possible. Sometimes tires with worn tread are recapped, i.e. a new layer of rubber with grooves is bonded onto the outer perimeter of a worn tire. Since this bonding may ...
Retread (also known as recap or remold) is a re-manufacturing process for tires that replace the tread on worn tires. [1] [2] Retreading is applied to casings of spent tires that have been inspected and repaired. [3] It preserves about 90% of the material in spent tires and the material cost is about 20% compared to manufacturing a new one.
Tire wear is a major source of rubber pollution. A concern hereby is that vehicle tire wear pollution is unregulated, unlike exhaust emissions. [102] Tire showing uneven tread wear to the point of exposing the casing Tread wear This occurs through normal contact with roads or terrain; there are several types of abnormal tread wear.
When other forms of auto racing similarly instituted classes which require DOT approved street tyres, some manufacturers similarly began to market tyres which superficially resembled their high performance street tyres, but with the least tread pattern permissible and with very soft, sticky rubber, intended specifically for competition because ...
Winter tire, showing tread pattern designed to compact snow in the gaps. [1] Snow tires, also known as winter tires, are tires designed for use on snow and ice. Snow tires have a tread design with larger gaps than those on conventional tires, increasing traction on snow and ice. Such tires that have passed specific winter traction performance ...
Similar traction-improving patterns have been implemented on the surface of the wheels on tractors. These include strakes , where material is removed from the surface of the wheel to achieve protrusion; cleats , with spikes instead of straight bars; and lugs with raised rubber on a tire tread .