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SSR Wheels (formerly known as Speed Star Racing Wheels) is a Japanese wheel manufacturer for both motorsport and aftermarket applications, headquartered in Osaka, Japan. The company is often credited as being the first to ever make a three-piece wheel with their MK-I wheel in 1971, and remains one of the most notable Japanese producers of ...
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The disk is welded in place such that the center of the wheel is equal to the center of the hub. The distance between the centerline of the rim and the mounting plane of the wheel is called the "offset" and can be positive, negative, or zero. [14] One-piece rim and wheel assemblies (see image) may be obtained by casting or forging.
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
Automotive parts are an especially large line of business for Bridgestone in diversified operations. Bridgestone supplies automakers with vibration–isolating components, such as engine mounts. Bridgestone also supplies air springs for trucks, automobiles and train carriages. Bridgestone market aluminium wheels and other automotive accessories ...
Schumacher soon started selling internationally. The company has always operated out of Northampton [3] but sources some components from China like most other RC companies; however, the majority of manufacturing remains in England. Cecil Schumacher's son Robin Schumacher took over the business in 2001.
The wheel rims are usually steel or aluminum (generally with steel spokes and an aluminum hub) or mag-type cast or machined aluminum. Cast magnesium disks, produced by one-step hot forging from magnesium alloys ZK60 and MA-14, are also used for many motorcycle wheels.
BBS continues to produce one-, two-, and three-piece forged wheels out of aluminum and magnesium alloys, as well as high performance flow-formed wheels and low-pressure cast wheels. [20] BBS also actively uses specialized quality and weight optimization methods, such as CNC back-milled spokes , x-ray inspection , FEM analysis, flow-forming ...