型号 2100原厂轮胎硬度表
描述:
Tire hardness can be a critical factor in setting up a race car. A tire thats too hard may sacrifice traction, while a tire thats too soft may give great traction but wear too quickly, and an unmatched set of tires may result in an ill handling car. To properly set up a car, a measure of tire hardness is necessary, and the easiest and most cost-effective way to obtain such a measure is to use a durometer.
The Type A durometer as specified by ASTM D-2240 is the gauge used by tire manufacturers to measure hardness of tire rubber. The gauge gives readings of hardness in durometer points on a scale of 0-100, with 100 being the hardest reading. Some race tires come from the factory with the durometer hardness noted on the side wall, but factors such as ambient temperature, track temperature, usage, and age of the tire can change the actual hardness of the tire from the factory hardness.
Rex Gauge Companys 2100 Tire Durometer allows racers to quickly and accurately make checks of tire hardness. Unlike other "racing durometers" (which are just relative hardness gauges), the Rex 2100 is calibrated to the ASTM D-2240 standard for durometer hardness and is traceable to N.I.S.T. Thus, the Rex 2100 allows comparison with the factory tire specifications.
The 2100 is a handheld gauge weighing only 4.2 oz. The indicator case, bezel, and barrel are all billet machined aluminum. Because of its billet construciton, and the fact that the durometer is manufactured in the USA by Rex Gauge Company (an industry leader in durometers for over 60 years), the craftsmanship that goes into the 2100 is unsurpassed. The gauge is furnished with a carrying case and a one year warranty.
DUROMETER TYPES |
APPLICATIONS |
INDENTOR SHAPE |
MAIN SPRING |
TYPE A (ASTM D2240) |
Soft rubber, plastics, and elastomers, printers rolls. |
Flat Cone Point
35° Included Angle |
822 GM
1.81 LB. |
TYPE D (ASTM D2240) |
Hard rubber and plastics such as thermo plastics, flooring and bowling balls. |
Sharp Cone Point
30° Included Angle |
4536 GM
10.0 LB. |
TYPE B (ASTM D2240) |
Harder elastomers and plastics. Paper and fibrous materials, Use above 93 Duro A. |
Sharp Cone Point
30° Included Angle |
822 GM
1.81 LB |
TYPE C (ASTM D2240) |
Medium hard elastomers and plastics. Also useful to avoid surface marks. |
Flat Cone Point
35° Included Angle |
4536 GM
10.0 LB |
TYPE DO (ASTM D2240) |
Dense granular material, textile windings. |
3/32" Spherical |
4536 GM
10.0 LB |
TYPE O (ASTM D2240) |
Very soft elastomers, textile windings, soft granular materials. Use below 20 Duro A. |
3/32" Spherical |
822 GM
1.81 LB |
TYPE OO (ASTM D2240) |
Light foams, sponge rubber gels, animal tissue. |
3/32" Spherical |
113 GM |
TYPE OOO (ASTM D2240) |
Ultra soft gels and sponge rubber. |
1/2" Spherical |
113 GM |
TYPE M (ASTM D2240) |
Materials as thin as .050" |
Sharp Cone Point
30° Included Angle |
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