enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  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. Load path analysis - Wikipedia

    en.wikipedia.org/wiki/Load_path_analysis

    a): load paths based on U* index; b): von Mises stress distribution [2] In the image to the right, a structural member with a central hole is placed under load bearing stress. Figure (a) shows the U* distribution and the resultant load paths while figure (b) is the von Mises Stress distribution. As can be seen from figure (b), higher stresses ...

  4. Main bearing - Wikipedia

    en.wikipedia.org/wiki/Main_bearing

    The number of main bearings is primarily determined by the overall load factor and maximum engine speed. [1] Increasing the number of bearings in an engine will generally increase the size and cost of the engine, but also reduces bending stress and deflection caused by the distance from the crank pins to the nearest bearings.

  5. Bearing surface - Wikipedia

    en.wikipedia.org/wiki/Bearing_surface

    On a spring, the bearing area refers to the amount of area on the top or bottom surface of the spring in contact with the constraining part. [4] The ways of machine tools, such as dovetail slides, box ways, prismatic ways, and other types of machine slides are also bearing surfaces.

  6. ABEC scale - Wikipedia

    en.wikipedia.org/wiki/ABEC_scale

    The ABEC scale is designed to provide bearing manufacturers dimensional specifications that meet the standards of precision bearings in a specified class. The scale is also used by manufacturers who produce equipment that require bearings must also know the dimensional tolerances to design parts that will accommodate a bearing.

  7. Crosshead - Wikipedia

    en.wikipedia.org/wiki/Crosshead

    A crosshead as part of a reciprocating piston and slider-crank linkage mechanism. Cylindrical trunk guide Hudswell Clarke Nunlow; crosshead and two slide bars. In mechanical engineering, a crosshead [1] is a mechanical joint used as part of the slider-crank linkages of long stroke reciprocating engines (either internal combustion or steam) and reciprocating compressors [2] to eliminate ...

  8. Tapered roller bearing - Wikipedia

    en.wikipedia.org/wiki/Tapered_roller_bearing

    Tapered roller bearings were a breakthrough at the end of the 19th century because bearings used in wheel axles had not changed much since ancient times. They consisted of a cylindrical seat on the frame and part of the axle enclosed in a case or box that held a lubricant.

  9. Fluid bearing - Wikipedia

    en.wikipedia.org/wiki/Fluid_bearing

    Fluid bearings can be relatively cheap compared to other bearings with a similar load rating. The bearing can be as simple as two smooth surfaces with seals to keep in the working fluid. In contrast, a conventional rolling-element bearing may require many high-precision rollers with complicated shapes. Hydrostatic and many gas bearings do have ...