Journal bearing is widely used in railroad car axles and locomotives. In North America, railroad car wheels feature rolling-elements bearing instead of a plain bearing. To make them more effective (low friction) and durable, plain bearings are often made using different materials. In mechanical w...
Endorsements grant the authority to operate a number of different types of vehicles. With just a CDL, you are limited to operating the vehicles within your license class that do not require any additional endorsements. To be able to drive more types of vehicles and transport a greater variety ...
Prismatic forms: buildings whose two ends are similar, equal, and parallel figures, whose sides are identical, and whose axles are fully vertical; - Setback forms: buildings with recessed horizontal sections through the height of the building; - Tapered forms: buildings with a tapering effect thro...
you turn the large outer gear wheel at moderate speed. This large wheel meshes with a pair of small gear wheels fitted to the top of the two axles attached to the blades. Each rotation of the large wheel (blue)
Rotation is the foundation of automotive transport. For a car as a whole to be translated from, say, New York City to Los Angeles, its wheels must rotate around the car's axles, and many of the internal parts of the automobile's combustion engine rotate as they do work. The Earth itse...
It is, as the name suggests, set up so that the axles pivot about a location somewhere near the center of the car and allow the wheels to travel up and down through their respective arcs. This system was eventually adapted for rear suspensions as can be found on the old beetles. I’ll...
This chapter provides an overview of the common types of defects found in various structural materials and joints in aircraft. Materials manufacturing methods (including large-scale production) have been established in the aircraft industry. However, as will be seen in this chapter, manufacturing defec...