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  2. Uniform Tire Quality Grading - Wikipedia

    en.wikipedia.org/wiki/Uniform_Tire_Quality_Grading

    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.

  3. Tire code - Wikipedia

    en.wikipedia.org/wiki/Tire_code

    Load index and speed rating are sometimes not mandatory for flotation sizes, but must be for any tire approved for street and highway use. 2- or 3-digit number: Load index; see table below. 1- or 2-digit/letter combination: Speed rating; see table below. Additional marks: see subheading below.

  4. Tire uniformity - Wikipedia

    en.wikipedia.org/wiki/Tire_uniformity

    Sheet-of-light sensors project a laser line instead of a laser point, and thereby create a very large area-of-interest. Sidewall sensors can easily span an area from the bead area to the tread shoulder, and inspect the complete sidewall for bulge and depression defects. Large radial sensors can span 300mm or more to cover the entire tread width.

  5. Tire tread - Wikipedia

    en.wikipedia.org/wiki/Tire_tread

    Design of tire tread has an effect upon noise generated, especially at freeway speeds. [1] Generally there is a tradeoff of tread friction capability; deeper patterns often enhance safety, but simpler designs are less costly to produce and actually may afford some roadway noise mitigation.

  6. Snow tire - Wikipedia

    en.wikipedia.org/wiki/Snow_tire

    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 ...

  7. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    Product grade A washers – with a hardness up to 300 HV designed for use with hexagon head bolts and nuts: Withdrawn: DIN EN ISO 7089, DIN EN ISO 7090: ISO 7089, ISO 7090: DIN 126: Product grade C washers – designed for use with hexagon head bolts and nut: Withdrawn: DIN EN ISO 7091: ISO 7091: DIN 127: Spring lock washers with square ends or ...

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