A bogie from a railroad car. This one uses journal bearings.
A journal bearing is a simple bearing in which a shaft, or "journal", rotates in the bearing with a layer of oil or grease separating the two parts through fluid dynamic effects. The shaft and bearing are generally both simple polished cylinders with lubricant filling the gap. Rather than the lubricant just "reducing friction" between the surfaces, letting one slide more easily against the other, the lubricant is thick enough that, once rotating, the surfaces do not come in contact at all. Image File history File links Download high resolution version (831x447, 104 KB) A Bettendorf style truck displayed at the Illinois Railway Museum. ... Image File history File links Download high resolution version (831x447, 104 KB) A Bettendorf style truck displayed at the Illinois Railway Museum. ... A bogie is a wheeled wagon or trolley. ... This is the top-level page of WikiProject trains Rail tracks Rail transport refers to the land transport of passengers and goods along railways or railroads. ... A bearing is a component used to reduce friction in a machine. ... Oil is a generic term for organic liquids that are not miscible with water. ... The word grease can mean:- A type of industrial lubricant: see grease (lubricant). ...
Crankshaft, babbitt metal, plain bearing shells A plain bearing is a bearing which carries load by sliding. ... Fluid bearings, also called fluid dynamic bearings or hydrostatic or gas bearings, are bearings which support load on a thin layer of liquid or gas. ...
External links
Reliability Direct: Field Application Note: Journal Bearing
Feeds |
Contact