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2. List of railroad truck parts - Wikipedia

   en.wikipedia.org/wiki/List_of_railroad_truck_parts

   An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.

3. Rack railway - Wikipedia

   en.wikipedia.org/wiki/Rack_railway

   Rack railway. The Pilatus Railway is the steepest rack railway in the world, with a maximum gradient of 48% and an average gradient of 35%. A rack railway (also rack-and-pinion railway, cog railway, or cogwheel railway) is a steep grade railway with a toothed rack rail, usually between the running rails. The trains are fitted with one or more ...

4. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   The 19-inch (482.6 mm) standard rack arrangement is widely used throughout the telecommunications, computing, audio, video, entertainment and other industries, though the Western Electric 23-inch standard, with holes on 1-inch (25.4 mm) centers, is still used in legacy ILEC / CLEC facilities. Nineteen-inch racks in two-post or four-post form ...

5. Glossary of rail transport terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_rail_transport...

   Also Centering spring cylinder. A cylindrical cast-iron holder in which an adjusting string is placed. Adjusting spring seat A casting, or a part of the bolster of a two-wheel trailing truck, forming a bearing for the end of the adjusting spring. Admission The opening of steam port to admit steam to one end of a cylinder. If the valve has no lead, admission takes place at the moment the piston ...

6. Mount Rainier Railroad and Logging Museum - Wikipedia

   en.wikipedia.org/wiki/Mount_Rainier_Railroad_and...

   The Mt. Rainier Scenic Railroad or MRSR, formerly the Mt. Rainier Railroad and Logging museum (MRRR), is a steam-powered heritage railroad operating in the U.S. state of Washington between Elbe and Mineral. The railroad travels on trackage that passes through thick forest just south of Mount Rainier. The depot, gift shop and ticket office are ...

7. Titan sub disaster: Five key questions that remain - AOL

   www.aol.com/titan-sub-disaster-five-key...

   The sub’s hull was also made out of carbon fibre, an unconventional material for a deep-sea vessel. Metals such as titanium are most commonly used as they are reliable under immense pressures.