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Jawed chucks may require a wrench-like device called a chuck key to be tightened or loosened, but other jawed chucks may be tightened or loosened by hand force alone, offering convenience at the expense of gripping force. Chucks on some lathes have jaws that move independently, allowing them to hold irregularly shaped objects.
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.
The result of this was that the interest of the JDŽ in the V 200 was awakened, and in 1956 ordered three locomotives; however, on Yugoslav railways the axle load limit was 16 t; [1] so Krauss-Maffei designed the ML 2200 C'C', a six axle version of the V 200 with correspondingly lower axle loads. [note 1] This was the version that the JDŽ ...
Drill chucks mounted by Jacobs tapers onto arbors with Morse tapers for the spindle. Spindle nose on a lathe headstock. The small female taper is a Morse taper to take a lathe center or a tool such as a twist drill. The large male taper takes a lathe chuck, which is retained by the large nut.
Improvements in lathe chucks: James Buckingham: Charles Churchill: 28 Oct 1868 [14] 2899 [15] 6 Nov 1866: An improved chuck for holding drills and other tools: Charles Churchill: Albert Beach: 3696 [16] 27 Dec 1867: An improved gas-burner: Charles Churchill: Willis Churchill: 3173 [17] 15 Oct 1868: Improvements in sporting breech-loading fire ...
A machine tool may have several spindles, such as the headstock and tailstock spindles on a bench lathe. The main spindle is usually the biggest one. References to "the spindle" without further qualification imply the main spindle. Some machine tools that specialize in high-volume mass production have a group of 4, 6, or even more main spindles.
A lathe faceplate is a basic workholding accessory for a wood or metal turning lathe. It is a circular metal (usually cast iron) plate which fixes to the end of the lathe spindle. The workpiece is then clamped to the faceplate, typically using t-slot nuts in slots in the faceplate, or less commonly threaded holes in the faceplate itself.
The axle load of a wheeled vehicle is the total weight bearing on the roadway for all wheels connected to a given axle.Axle load is an important design consideration in the engineering of roadways and railways, as both are designed to tolerate a maximum weight-per-axle (axle load); exceeding the maximum rated axle load will cause damage to the roadway or railway tracks.