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The scrub radius is the distance at the road surface between the tire center line and the SAI line extended downward through the steering axis. The line through the steering axis creates a pivot point around which the tire turns. If these lines intersect at the road surface, a zero scrub radius would be present.
Given that the tire is an assembly of multiple components that are cured in a mold, there are many process variations that cause cured tires to be classified as rejects. Bulges and depressions in the sidewall are such defects. A bulge is a weak spot in the sidewall that expands when the tire is inflated.
UTQG ratings on sidewall of Toyo Tires Proxes R39 tire UTQG ratings (top) and tire code (bottom) on sidewall of Continental ContiProContact tire. Uniform Tire Quality Grading, commonly abbreviated as UTQG, is a set of standards for passenger car tires that measures a tire's treadwear, temperature resistance and traction.
The sealant can then be driven into the tire using an air compressor. A flat tire can be repaired by a patch or plug; [4] or the tire may repair itself. Self-sealing tires work on punctures up to a certain size. Patch repair is commonly used in a repair shop. Some may not patch a worn tire if: the hole is close to a previous patch; there are ...
Whitewall tires or white sidewall (WSW) tires are tires having a stripe or entire sidewall of white rubber. These tires were most commonly used from the early 1900s to around the mid 1980s. These tires were most commonly used from the early 1900s to around the mid 1980s.
Although the term, "tread element" is used, the compliance in the tire that leads to this effect is actually a combination of sidewall deflection and deflection of the rubber within the contact patch. The exact ratio of sidewall compliance to tread compliance is a factor in tire construction and inflation pressure. [3]
Colorized tire footprint pressure distribution. The contact patch is the portion of a vehicle's tire that is in actual contact with the road surface.It is commonly used in the discussion of pneumatic (i.e. pressurized) tires, where the term is used strictly to describe the portion of the tire's tread that touches the road surface.
The shoe-and-lever mechanism performs well on many motorcycle tires, passenger vehicle tires and trailers, but with more difficult tires, it often fails because of the nature of the design. A shoe, operated by a lever , pushes down on the tire sidewall next to the tire bead, and if the bead is stuck, the shoe may slip and press against the ...