North American Trucks

Mar 25,2016 09:18:15

In North America, the combination vehicles made up of a powered truck and one or more detachable trailers, are known as semi-tractor-trailers, tractor-trailers, semis, big rigs, semi trucks or eighteen-wheelers. The tractors, or powered trucks, typically have two or three axles; those ...

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Trailer and trailer in the form of train

Mar 28,2016 09:14:33

Development of automobile transport requirements continue to increase the carrying capacity of the vehicle, but the axle load and the outside dimensions of ordinary cars is limited road regulations, can not be made too heavy too large, so there is a trailer in the form of car trains. I...

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Leaf spring

Apr 13,2016 09:24:11

Sometimes referred to as a semi-ellipticalspring or cart spring, it takes the form of a slenderarc-shaped length of spring steel of rectangular cross-section. The center of the arc provides location for the axle,while tie holes are provided at either end for attaching to the vehicle body. For...

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In what situation drum brakes are better than disc brakes?

Jul 01,2016 10:50:37

Disc brakes tend to dissipate heat better and do not collect nearly as much dust as drum brakes (which traps the brake dust in the drum with nowhere to go), so disc brakes will work better as a rule. Pad wear tends to be more even. Also, the rear wheel cylinders do not rust out and fail as often as ...

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What are parabolic springs?

Jul 04,2016 09:42:09

A parabolic spring is basicly a leaf or a set of leaves which are tapered in a parabolical way rather than a liniear. So from the middle, where it is thick, to the ends , where it is thinner, the tapering steps down in a parabolical manner i.e. Y = Xsquare + n where Y and X are related to the thickn...

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