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Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches – for example, 6.50-15. [24] From 1965 to the early 1970s, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and diameter in inches.
Airless tires, non-pneumatic tires (NPT), or flat-free tires are tires that are not supported by air pressure. [1] [2] [3] They can be used on small vehicles such as ride-on lawn mowers and motorized golf carts. They also are used on heavy equipment required to operate on sites where risk of tire punctures is high.
ASTM D6240-98, 2006, ASTM D6240-98 Standard Tables of Body Measurements for Men Sizes Thirty-Four to Sixty (34 to 60) ASTM D6458-99, 2006, Standard Tables of Body Measurements for Boys, Sizes 8 to 14 Slim and 8 to 20 Regular; ASTM D6960-04, 2004, Standard Table of Body Measurements Relating to Women's Plus Size Figure Type, Sizes 14W-32W
The inner width of the rim on which the tire is mounted should be about 65% of the tire's nominal section width for tires smaller than 30 mm and 55% for those larger. The section height of a tire is usually identical to its section width (for tires less than 28 mm, 2.5 mm have to be added to the width to get the height).
Is there an explanation of tractor tire sizes anywhere? They are normally in the format 14.9-24 or 6.50-16 I suppose the second number is the size of the rim. but I don't know what the first number represents. I'm trying to find options for the front wheels on my tractor, the current tires just don't work for me.
ASTM D6960-04 – Women's Plus sizes (2004) There is no mandatory clothing size or labeling standard in the US, though a series of voluntary standards have been in place since the 1930s. The US government, however, did attempt to establish a system for women's clothing in 1958 when the National Bureau of Standards published Body Measurements ...
Tire inflation for passenger cars is typically about 30 pounds per square inch or 207 kilopascals . This is displayed on tires beside its metric equivalent. Post model year 2006 regulations also mandate an internationally standard "Tire and Loading Information" sticker which gives capacities in SI units followed by customary equivalents.
A cross-section of a tire. Number 12 indicates the radial ply. Numbers 14 and 16 are bias plies. A radial tire (more properly, a radial-ply tire) is a particular design of vehicular tire. In this design, the cord plies are arranged at 90 degrees to the direction of travel, or radially (from the center of the tire).