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BSA B44
The BSA B44 was a series of unit construction single-cylinder OHV four-stroke motorcycles made by the Birmingham Small Arms Company between 1966 and 1970. The machines were developed from the BSA World Championship Motocross machines, which were themselves based on the C15/ B40. Background In 1963 BSA began competing a C15T fitted with the 343 cc B40 engine in various disciplines. Works rider Jeff Smith won the Scottish Six Days 350 cc cup that year and finished 3rd in the 500 cc Motocross World Championship. Brian Martin, head of BSA's competition department, started a feasibility study to enlarge the B40 engine. The engine was enlarged to 421 cc, which was considered the maximum reliable size. For the 1964 Motocross season, the engine was fitted in a lightweight frame that carried the oil in the top tube. The machine weighed 228 lbs. Smith took this machine to 3 victories in the championship and, with 3 rounds to go, the displacement was increased to 441 cc. Smith won t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BSA Motorcycles
BSA motorcycles were made by the Birmingham Small Arms Company Limited (BSA), which was a major British industrial combine, a group of businesses manufacturing military and sporting firearms; bicycles; motorcycles; cars; buses and bodies; steel; iron castings; hand, power, and machine tools; coal cleaning and handling plants; sintered metals; and hard chrome process. A government-organised rescue operation in 1973 led to the takeover of BSA-Triumph motorcycle operations by Norton-Villiers, later known as Norton Villiers Triumph. At its peak, BSA (including Triumph) was the largest motorcycle producer in the world. In the late 1950s and early 1960s poor management and failure to develop new products in the motorcycle division led to a dramatic decline of sales to its major USA market. The management had failed to appreciate the importance of the resurgent Japanese motorcycle industry, leading to problems for the entire BSA group. When Norton Villiers Triumph was liquidated in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BSA B40
The BSA B40 was a series of unit construction single-cylinder OHV four-stroke motorcycles made by the Birmingham Small Arms Company. Developed from the BSA C15, the machines were produced between 1961 and 1967 for civilian use. Military versions were manufactured from 1967 to 1970. Around 14,000 machines were built in total. Overview As a reaction to the emergence of high-tech, high performance Honda lightweights that were starting to appear (Mike Hailwood had won the 1961 Lightweight TT on a DOHC, twin-cylinder, 125 cc machine), BSA increased the performance its lightweight by boring the C15 out to 350 cc. The 67 mm bore of the C15 was increased to 79 mm to give a capacity of 343 cc for the new B40 model. Although the bottom end was beefed up, it still retained the plain big end. Concerns over reliability led to the compression ratio to be reduced to 7:1. A new cast iron barrel was produced with the pushrod tunnel built in. The engine produced at 7,000 rpm. C15 cyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BSA B44 Ss
BSA may refer to: Businesses and organizations * Basketball South Africa * Bearing Specialists Association * Belarusian Socialist Assembly * Bibliographical Society of America * Birmingham Small Arms Company, UK manufacturer of firearms and vehicles * Black Socialists in America * Boston Society of Architects * Botanical Society of America * Boy Scouts of America **Scouts BSA, the flagship program * British Social Attitudes Survey * British Sandwich Association * British Science Association * British Sociological Association * British Speleological Association * British Stammering Association * Broadcasting Service Association, former name of the Australian radio network Macquarie Media * Broadcasting Standards Authority * BSA Company, motorcycle manufacturer * BSA motorcycles, made by the Birmingham Small Arms Company Limited * BSA (The Software Alliance), a trade group established by Microsoft, formerly called Business Software Alliance * Business Services Association, of UK serv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earls Court Exhibition Centre
Earls Court Exhibition Centre was a major international exhibition and events venue just west of central London. At its peak it is said to have generated a £2 billion turnover for the economy. It replaced exhibition and entertainment grounds, originally opened in 1887, with an art moderne structure built between 1935 and 1937 by specialist American architect C. Howard Crane. With the active support of London mayor Boris Johnson, in an attempt to create Europe's "largest regeneration scheme", its proposed heritage listing was refused after it was acquired by developers, who promptly in 2008 applied for and were granted a Certificate of Immunity from Listing by English Heritage, and its demolition was completed in 2017. Located in Earl's Court but straddling the boundary between the Royal Borough of Kensington and Chelsea and the Borough of Hammersmith and Fulham, it was the largest such venue within the capital served by two London Underground stations—one of them, Earl's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylinder (engine)
In a reciprocating engine, the cylinder is the space in which a piston travels. The inner surface of the cylinder is formed from either a thin metallic liner (also called "sleeve") or a surface coating applied to the engine block. A piston is seated inside each cylinder by several metal piston rings, which also provide seals for compression and the lubricating oil. The piston rings do not actually touch the cylinder walls, instead they ride on a thin layer of lubricating oil. Steam engines The cylinder in a steam engine is made pressure-tight with end covers and a piston; a valve distributes the steam to the ends of the cylinder. Cylinders were cast in cast iron and later in steel. The cylinder casting can include other features such as valve ports and mounting feet. Internal combustion engines The cylinder is the space through which the piston travels, propelled to the energy generated from the combustion of the air/fuel mixture in the combustion chamber. In an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast Iron
Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing. Carbon (C), ranging from 1.8 to 4 wt%, and silicon (Si), 1–3 wt%, are the main alloying elements of cast iron. Iron alloys with lower carbon content are known as steel. Cast iron tends to be brittle, except for malleable cast irons. With its relatively low melting point, good fluidity, castability, excellent machinability, resistance to deformation and wear resistance, cast irons have become an engineering material with a wide range of applications and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roller Bearing
In mechanical engineering, a rolling-element bearing, also known as a rolling bearing, is a bearing which carries a load by placing rolling elements (such as balls or rollers) between two concentric, grooved rings called races. The relative motion of the races causes the rolling elements to roll with very little rolling resistance and with little sliding. One of the earliest and best-known rolling-element bearings are sets of logs laid on the ground with a large stone block on top. As the stone is pulled, the logs roll along the ground with little sliding friction. As each log comes out the back, it is moved to the front where the block then rolls on to it. It is possible to imitate such a bearing by placing several pens or pencils on a table and placing an item on top of them. See " bearings" for more on the historical development of bearings. A rolling element rotary bearing uses a shaft in a much larger hole, and cylinders called "rollers" tightly fill the space between t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ball Bearing
A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other. Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races. History Although bearings had been developed since ancient times, the first mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bore (engine)
In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder. Engine displacement is calculated based on bore, stroke length and the number of cylinders: displacement = The stroke ratio, determined by dividing the bore by the stroke, traditionally indicated whether an engine was designed for power at high engine speeds (rpm) or torque at lower engine speeds. The term "bore" can also be applied to the bore of a locomotive cylinder or steam engine pistons. Steam locomotive The term bore also applies to the cylinder of a steam locomotive or steam engine. See also * Bore pitch * Compression ratio * Engine displacement Engine displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. It is commonly used as an expression of an engine's size, and by extension as a loose indicator of the ... References {{Steam engine configurations Engine technology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stroke (engine)
In the context of an internal combustion engine, the term stroke has the following related meanings: * A phase of the engine's cycle (e.g. compression stroke, exhaust stroke), during which the piston travels from top to bottom or vice versa. * The type of power cycle used by a piston engine (e.g. two-stroke engine, four-stroke engine). * "Stroke length", the distance travelled by the piston during each cycle. The stroke length––along with bore diameter––determines the engine's displacement. Phases in the power cycle Commonly used engine phases or strokes (i.e. those used in a four-stroke engine) are described below. Other types of engines can have very different phases. Induction-intake stroke The induction stroke is the first phase in a four-stroke (e.g. Otto cycle or Diesel cycle) engine. It involves the downward movement of the piston, creating a partial vacuum that draws a air-fuel mixture (or air alone, in the case of a direct injection engine) into the combus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1967 BSA B44VE Victor Enduro 441cc-engine Right Side
Events January * January 1 – Canada begins a year-long celebration of the 100th anniversary of Canadian Confederation, Confederation, featuring the Expo 67 World's Fair. * January 5 ** Spain and Romania sign an agreement in Paris, establishing full consular and commercial relations (not diplomatic ones). ** Charlie Chaplin launches his last film, ''A Countess from Hong Kong'', in the UK. * January 6 – Vietnam War: United States Marine Corps, USMC and Army of the Republic of Vietnam, ARVN troops launch ''Operation Deckhouse Five'' in the Mekong Delta. * January 8 – Vietnam War: Operation Cedar Falls starts. * January 13 – A military coup occurs in Togo under the leadership of Étienne Eyadema. * January 14 – The Human Be-In takes place in Golden Gate Park, San Francisco; the event sets the stage for the Summer of Love. * January 15 ** Louis Leakey announces the discovery of pre-human fossils in Kenya; he names the species ''Proconsul nyanzae, Kenyapithecus africanus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolf Tibblin
Rolf Tibblin (born 7 May 1937) is a Swedish former professional motocross racer. He competed in the Motocross World Championships from 1957 to 1967. Tibblin was a three-time motocross world champion known for his exceptional physical fitness. Motorcycle racing career Born in Stockholm, Sweden, Tibblin competed in the 1958 250cc European Motocross Championship (the predecessor of the 250cc Motocross World Championship) riding a Husqvarna motorcycle to finish the season ranked second in the final point standings to Jaromír Čížek. He returned the following year and won the 1959 250cc European Motocross Championship as a member of the Husqvarna factory racing team. Tibblin moved up to the premier 500cc motocross world championship for the 1960 season where he claimed third place in the series' final standings behind his countrymen Bill Nilsson and Sten Lundin. In 1961 and 1962, he was a member of the victorious Swedish teams at the Motocross des Nations. He went on to captu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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