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Lead is the axial advance of a helix gear tooth during one complete turn (360°), that is, the Lead is the axial travel (length along the axle) for one single complete helical revolution about the pitch diameter of the gear. Lead angle is 90° to the helix angle between the helical tooth face and an equivalent spur tooth face.
A dependent suspension normally has a beam (a simple 'cart' axle) or a (driven) live axle that holds wheels parallel to each other and perpendicular to the axle. When the camber of one wheel changes, the camber of the opposite wheel changes in the same way (by convention, on one side, this is a positive change in the camber, and on the other ...
Independent suspension is any automobile suspension system that allows each wheel on the same axle to move vertically (i.e. reacting to a bump on the road) independently of the others. This is contrasted with a beam axle or deDion axle system in which the wheels are linked. "Independent" refers to the motion or path of movement of the wheels or ...
An axle that is driven by the engine or prime mover is called a drive axle. Modern front-wheel drive cars typically combine the transmission (gearbox and differential) and front axle into a single unit called a transaxle. The drive axle is a split axle with a differential and universal joints between the two half axles. Each half axle connects ...
Solaris Urbino 18 in Warsaw, Poland (2018). First example of the articulated bus appeared in Milan in 1937.In 1938, Twin Coach built an articulated bus for the city of Baltimore; this bus, which had four axles on a 47 ft (14.33 m) long body, was only articulated in the vertical direction to accommodate steep grades. 15 examples of the "Super Twin" were built in 1948, but it was not developed ...
Four powered axles, connected by driving rods or gears, all mounted in the locomotive's frame (Whyte notation: 0-8-0). 1′D1′ One leading idle (non-driven) axle mounted in a bogie, four driven axles mounted in the frame and connected by driving rods or gears, followed by one trailing idle axle mounted in a bogie (Whyte notation: 2-8-2). E
As a wheel and axle is a type of lever, a system of wheels and axles is like a compound lever. [19] On a powered wheeled vehicle the transmission exerts a force on the axle which has a smaller radius than the wheel. The mechanical advantage is therefore much less than 1.
The company later organised a joint venture of Westland's helicopter interests with Agusta to form AgustaWestland [5] [6] and its sale to Italian defense firm Finmeccanica. During November 1995, Dana Corporation purchased GKN's axle group; the two firms continued to operate joint ventures in the field for many years.