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Wilderness Trail / King Headset
WILDERNESS TRAILS / KING CYCLE GREASE GUARD HEADSETWilderness Trails has created the Grease Guard variety for the headset. The basis for the Grease Guard head set is the Chris King headset. The WTB model includes a special groove on the cups, with a hole in it to inject Goose Grease. Here are the details. This headset is made of the finest materials, and done to the highest standards of workmanship any human can expect. The headset is comprised of five parts. The fork race is made of stainless steel. Because it's subjected to water and mud Stainless is the only material to consider. The race is machined to fit closely into the lower cup with it's bearing cartridge. Both bearing cups are machined aluminum to achieve perfectly round pieces, with flat facings, and exact seatings for the precision sealed bearing cartridges. Both of the bearing cups also have a half-round groove that runs around the outer circumference with a small flat spot. The cups at that point are anodized Black or Silver. Through the groove there is one small hole drilled. This hole is for the Goose Greaser ( WTB's grease injector) to inject replacement grease into the headset system. The groove is to seat a large rubber O- ring that rolls into the depression and keeps the drilled hole clean. The rubber ring is orange in color, which is what gives this headset it's orange stripe. To hold the fork to the head set there are two aluminum pieces, the adjusting nut and the head lock nut. Each is machined to their final shape and thread pattern, and finally anodized Black or Silver. The adjusting nut closes off the bearing to the elements and secures the parts, while the head lock nut holds the adjusting nut so it can't back off. This headset requires about 5/16" more stack height than some original equipment headsets. The use of stainless steel precision bearings in this headset will give it a long life. Made only in the 1" size, with English threads, in Black or Silver. Weighing 107.5 grams, it has a 42.9mm stack height. (Color-BK-S) $ 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... |
