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Odyssey Brake Booster


ODYSSEY U4-PLUS CANTILEVER BRAKE STIFFENER

The Odyssey plate has the distinction of being the only one sold thatÕs made of Titanium plate. Practically speaking, Titanium isn't perfect for every application. Where aluminum will properly do the job, Titanium will only add weight because it is a higher density metal. The U-4 Plus is made in Russia, and imported to the United States for packaging. The piece is fabricated from plate by cutting on a milling machine. The piece is 2.02mm thick, with a total height of 139.5mm and a total width of 130mm. Twelve graduated holes are cut from the piece with diameters between 10mm and 13mm.

The inner height for tire clearance is 99mm and the inner width between the two arms is 52.2mm The arms have a horizontal placed oval slot milled for the mounting bolt. The hole allows the plate to be used on cantilever studs placed as near as 72mm or as wide as 98mm. The U-4 Plus comes with two machined Titanium bolts. One of the bolts was of very low quality with cut threads on the bolt shank rather than rolled threads. (Rolling the threads is described in the Ti bolts replacement section of the Stems article). The bolts have 6mm by 1mm threads with a 35mm length, a 5mm hex fitting in the head for tightening and a 5 grams weight.

The U-4 Plus comes with two steel flat washers and six small aluminum tubes used as spacers. The final two parts are machined from aluminum rod caps that recess the bolt with a round colorful exterior. The plate of the U-4 Plus weighs 56.5 grams and the mounting hardware weighs 17.5 grams for a total weight of 74 grams. $ Price in Catalog





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...


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