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GT Techshop Hub Skewers
GT TECHSHOP TITANIUM SKEWERSThe GT Titanium skewers are made in the US. The lever, made of aluminum, has a 70mm length and 1/2" height, and is an external cam shape at the pivot pin to constrict on the axle. The lever rotates against a concave washer, that rests against a 19mm diameter contact washer that grips the hub. Using two washers in this position equalizes the tension as the lever is closed. The pivot pin, housed in the lever is made of stainless steel, and fastened to a Titanium skewer rod. The nut is machined from aluminum rod. It has a 19.3mm diameter with a serrated contact surface. The exterior of the nut has two rows of knurls, between which is a rubber O-ring. The O-ring and the knurls provide a good grip while tightening. The volute springs are of flat spring steel. The front skewer weighs 47 grams, the rear weighs 50.5 grams. The GT Techshop Ti skewers are anodized in Blue, Black, Lavender or Silver. Color-B-BK-L-S / T $ Price in Catalog |
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In-depth Information About Metals Aluminum Aluminum is extracted electrolytically from bauxite ore. It is made by the electrolysis of aluminum oxide which is found in larger concentrations within bauxite ore. Bauxite is a mixture of the hydroxides of aluminum, together with other impurities such as oxides of iron, titanium, and silicon. Bauxite is produced by the weathering and change of aluminum silicate rocks usually found in tropical and semitropical regions where climate has produced an accelerated weathering process. Bauxite is not a rare ore and is widely available in the US, the Caribbean, and Europe. Approximately 4 pounds of read the full article... Beryllium Beryllium is a specialty metal that is steel-grey metal in color, with an extremely low density, making it very light weight. At 1.85 grams to the cubic centimeter, its density compares to that of magnesium. It is also a high strength metal, making it possible to design light weight, thin membered parts with ahigh stiffness. A column made of beryllium to support a load placed directly downward on top of it, will have a greater load carrying capacity, and be lower in weight than any other metal of equal size. Until the 1950's beryllium was used read the full article... Titanium The element titanium was discovered in 1763 by an English cleric, William Gregor who was an amateur chemist with an inquiring mind. It was in the black sands of Cornwall that he discovered the new element that had up to that time, attracted little scientific interest. A few years later, an Austrian, Klaproth, extracted the same element from an ore widely known as "rutile", which is a mineral consisting of titanium dioxide (one titanium atom, two oxygen atoms), that is a reddish-brown substance with a slight metallic luster. While rutile is the highest grade read the full article... Metallurgic Hardness Testing There are three types of tests used with accuracy by the metals industry,they are the Brinell hardness test, the Rockwell hardness test, and the Vickers hardness test. Hardness is the property of a metal which gives it the ability to resist being permanently deformed (bent, broken, or have its shape changed), when a load is applied. The greater the hardness of the metal, the greater resistance it has to deformation. Since the definitions of metallurgic ultimate strength and hardness are rather similar, it can generally be assumed read the full article... |
