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8×8
Eight-wheel drive, often notated as 8WD or 8×8, is a drivetrain configuration that allows all eight wheels of an eight-wheeled vehicle to be drive wheels (that is, to receive power from the engine) simultaneously. Unlike four-wheel drive drivetrains, the configuration is largely confined to heavy-duty off-road and military vehicles, such as all-terrain vehicles, armored vehicles, and prime movers. Other types of smaller 8x8 vehicles include such things as the Argocat. Operation When such a vehicle only has eight wheels by definition all are driven. When it has twelve – with two pairs of ganged "dual" wheels on each rear axle – all are also driven but the 8×8 designation remains. Very occasionally, on the Sterling T26 for example, the two front axles can be fitted with ganged "dual" wheels. For most military applications where traction/mobility are considered more important than payload capability, single wheels on each axle (often referred to as super singles) are the no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARGO (ATV Manufacturer)
Argo is a Canadian manufacturer of amphibious all-terrain vehicles. It was founded in 1962 as Ontario Drive and Gear (ODG) Limited, in Kitchener, Ontario and was later moved to New Hamburg, Ontario. Argo offers 6×6 and 8×8 amphibious extreme terrain vehicles, as well as 4 wheel ATVs. History Founded in 1962 in Kitchener, Ontario. ODG helped design the transmission for the Amphicat. ODG manufactures 8×8 vehicles and 6×6 vehicles for recreational and industrial use. In November 2009, volunteers in twelve communities in Nunavut were each equipped with an Argo Avenger, one of ODG's 8×8 vehicles, for local Search and Rescue. Recently, ODG was asked to help the Canadian Space Agency in designing a lunar vehicle. The Argo is an all-terrain 8×8 or 6×6 amphibious ATV / UTV / XTV. ODG has been manufacturing the Argos for over five decades. Technical details * 8×8 and 6×6 * Triple differential ADMIRAL steering transmission provides even torque to all 8 of the 25" Argo tir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eight-wheel Drive
Eight-wheel drive, often notated as 8WD or 8×8, is a drivetrain configuration that allows all eight wheels of an eight-wheeled vehicle to be drive wheels (that is, to receive power from the engine) simultaneously. Unlike four-wheel drive drivetrains, the configuration is largely confined to heavy-duty off-road and military vehicles, such as all-terrain vehicles, armored vehicles, and prime movers. Other types of smaller 8x8 vehicles include such things as the Argocat. Operation When such a vehicle only has eight wheels by definition all are driven. When it has twelve – with two pairs of ganged "dual" wheels on each rear axle – all are also driven but the 8×8 designation remains. Very occasionally, on the Sterling T26 for example, the two front axles can be fitted with ganged "dual" wheels. For most military applications where traction/mobility are considered more important than payload capability, single wheels on each axle (often referred to as super singles) are the no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractor Unit
A tractor unit (also known as a truck unit, power unit, prime mover, ten-wheeler, semi-tractor, tractor truck, semi-truck, tractor cab, truck cab, tractor rig, truck rig or big rig or simply a tractor, truck, semi or rig) is a characteristically heavy-duty towing engine that provides motive power for hauling a towed or trailered load. These fall into two categories: heavy- and medium-duty military and commercial rear-wheel-drive semi-tractors used for hauling semi-trailers, and very heavy-duty typically off-road-capable, often 6×6, military and commercial tractor units, including ballast tractors. Overview Tractor units typically have large displacement diesel engines for power, durability, and economy; several axles; and a multi-ratio transmission (10, 13, or 18 gears) for maximum flexibility in gearing. The tractor-trailer combination distributes a load across multiple axles while being more maneuverable than an equivalently sized rigid truck. The most common trailer a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballast Tractor
A ballast tractor is a specially weighted tractor unit of a heavy hauler combination. It is designed to utilize a drawbar to pull or push heavy or exceptionally large trailer loads which are loaded in a hydraulic modular trailer. When feasible, lowboy-style semi-trailers are used to minimize a load's center of gravity. Typical drivetrains are 6×4 and 6×6 but also available in 8×6 and 8×8. Typical ballast tractor loads include oil rig modules, bridge sections, buildings, ship sections, and industrial machinery such as generators and turbines. Only a handful of manufacturers produce dedicated ballast tractors. Extra-heavy-duty chassis versions of mass-production tractor units are fitted with drawbar hitches and a separate ballast box as an alternative. These units are classified as N3 Category of Large goods vehicle. Ballast tractors can be traced back to the 1940s when heavy haulers from the UK started employing purpose-built Scammell Showtracs a short wheelbase 4x2 ball ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drive Wheel
A drive wheel is a wheel of a motor vehicle that transmits force, transforming torque into tractive force from the tires to the road, causing the vehicle to move. The powertrain delivers enough torque to the wheel to overcome stationary forces, resulting in the vehicle moving forwards or backwards. A two-wheel drive vehicle has two driven wheels, typically both at the front or back, while a four-wheel drive has four. A steering wheel is a wheel that turns to change the direction of a vehicle. A trailer wheel is one that is neither a drive wheel, nor a steer wheel. Front-wheel drive vehicles typically have the rear wheels as trailer wheels. Drive wheel configurations Front-wheel drive Front-wheel drive (FWD) vehicles' engines drive the front wheels. Using the front wheels for delivery of power as well as steering allows the driving force to act in the same direction as the wheel is pointing. This layout is commonly used in modern passenger cars. A rare example of front ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four-wheel Drive
Four-wheel drive, also called 4×4 ("four by four") or 4WD, refers to a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer case providing an additional output drive shaft and, in many instances, additional gear ranges. A four-wheel drive vehicle with torque supplied to both axles is described as "all-wheel drive" (AWD). However, "four-wheel drive" typically refers to a set of specific components and functions, and intended off-road application, which generally complies with modern use of the terminology. Definitions Four-wheel-drive systems were developed in many different markets and used in many different vehicle platforms. There is no universally accepted set of terminology that describes the various architectures and functions. The terms used by various manufacturers often reflect marketing rather than engineering considerations or significant technical d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Driveline Windup
Driveline windup is also known as "axle binding" or "driveline binding". Mechanical components in the drivetrain of vehicles may bind and wear, which may occur when tires of varying sizes are used on one vehicle. It is a particular issue in 4WD cars with tires having varied tread patterns or brands. Despite marked size, different brands often differ in actual size. Even if both front and rear are the same brand, and marked with the same size they may still differ in actual size. A pull to the right or left when driving or braking could trigger windup caused by mismatched tire tread/sizes. H-drive Heavy off-road vehicles using 6×6 or 8×8 may use a H-drive drivetrain. These are particularly prone to driveline windup. H-drives do not use axles but rather individual wheel stations, carried on a punt or backbone chassis. A single differential splits the drive into separate left and right drive shafts, which each run fore and aft inside the bottom corners of the chassis. At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four-wheel Drive
Four-wheel drive, also called 4×4 ("four by four") or 4WD, refers to a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer case providing an additional output drive shaft and, in many instances, additional gear ranges. A four-wheel drive vehicle with torque supplied to both axles is described as "all-wheel drive" (AWD). However, "four-wheel drive" typically refers to a set of specific components and functions, and intended off-road application, which generally complies with modern use of the terminology. Definitions Four-wheel-drive systems were developed in many different markets and used in many different vehicle platforms. There is no universally accepted set of terminology that describes the various architectures and functions. The terms used by various manufacturers often reflect marketing rather than engineering considerations or significant technical d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
H-drive
An H-drive drivetrain is a system used for heavy off-road vehicles with 6×6 or 8×8 drive to supply power to each wheel station. H-drives do not use axles but rather individual wheel stations, usually carried on a punt chassis. A single differential splits the drive into separate left and right drive shafts, which each run fore and aft inside the bottom corners of the chassis. At each wheel station a bevel box drives the half shaft out to the wheel. Advantages * Each wheel station has independent suspension. * Greater ground clearance than conventional axles, as there is no central housing for the differential and final drive. * Lower unsprung weight as only the halfshafts are carried, not the centre differential of an axle. * Only one differential is required; however, this also requires that final drive to transmit all of the vehicle's torque. * Losing traction with one wheel still retains traction for the other wheels on that side; in effect, a longitudinal differentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tank Transporter
A tank transporter is a combination of a heavy tractor unit and a mating full trailer or semi-trailer (typically of the "lowboy" type), used for transporting tanks and other armoured fighting vehicles. Some also function as tank recovery vehicles, the tractors of which may be armoured for protection in combat conditions. Used on roads, tank transporters reduce the wear and tear on tracks and the other components of the powertrains of tracked vehicles. They also conserve fuel, are less damaging of road surfaces, and reduce tank crew fatigue. Overall, they are more efficient at moving tanks at higher speeds and longer distances than the tanks themselves. Chassis designs Three chassis designs have been used, generally in this order over time as loads became heavier, although there are exceptions. Rigid chassis The lighter tanks of World War I and the interwar period were carried on simple rigid flatbed lorries. Trailers As the weight of tanks became too great for lorry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Six-wheel Drive
Six-wheel drive (6WD or 6×6) is an all-wheel drive drivetrain configuration of three axles with at least two wheels on each axle capable of being driven simultaneously by the vehicle's engine. Unlike four-wheel drive drivetrains, the configuration is largely confined to heavy-duty off-road and military vehicles, such as all-terrain vehicles, armored vehicles, and prime movers. When such a vehicle only has six wheels by definition all are driven. When it has ten – with two pairs of ganged "dual" wheels on each rear axle as on a GMC CCKW – all are also driven but the 6×6 designation remains. For most military applications where traction/mobility are considered more important than payload capability, single wheels on each axle (often referred to as super singles) are the norm. Heavy hauler and ballast tractor 6×6s have had a long history as prime movers both in the military (as tank transports and artillery tractors), and commercially in logging and heavy equ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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