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2. Shaft sinking - Wikipedia

   en.wikipedia.org/wiki/Shaft_sinking

   Galloway (Sinking Stage) Construction & Installation. The Galloway (also known as a Sinking Stage or Scaffold) is a multi-level working platform, suspended in the shaft from winches located on the surface. The Galloway allows sinkers to efficiently work on different levels as required by the various tasks of the sinking cycle.

3. Engineering fit - Wikipedia

   en.wikipedia.org/wiki/Engineering_fit

   Engineering fits are generally used as part of geometric dimensioning and tolerancing when a part or assembly is designed. In engineering terms, the "fit" is the clearance between two mating parts, and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other or, at the other end, are temporarily or permanently joined.

4. Fit (manufacturing) - Wikipedia

   en.wikipedia.org/wiki/Fit_(manufacturing)

   The maximum clearance of a fit is the difference between the upper bound of the orifice diameter and the lower bound of the shaft diameter. maximum clearance = maximum orifice diameter – minimum shaft diameter. The minimum clearance meanwhile is the difference between the lower bound of the orifice diameter and the upper bound of the shaft ...

5. IT Grade - Wikipedia

   en.wikipedia.org/wiki/IT_Grade

   For a part dimensioned at 10 mm, IT14 allows for up to 0.36 mm of variation in size. As the IT grade number increases, the tolerances increase; similarly, for larger nominal sizes, the standard tolerances increase. For a part dimensioned at 100 mm, IT14 allows for up to 0.87 mm of variation in size.

6. Engineering tolerance - Wikipedia

   en.wikipedia.org/wiki/Engineering_tolerance

   The standard (size) tolerances are divided into two categories: hole and shaft. They are labelled with a letter (capitals for holes and lowercase for shafts) and a number. For example: H7 (hole, tapped hole, or nut) and h7 (shaft or bolt). H7/h6 is a very common standard tolerance which gives a tight fit.

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   mail.aol.com

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8. Key (engineering) - Wikipedia

   en.wikipedia.org/wiki/Key_(engineering)

   The more exact fit of the key and keyway also reduces play, and stress concentrations in, and improves the reliability of the key. An additional advantage is a stuck key can be removed from a shaft with a hammer blow, the circular profile will push the key out of the slot, as opposed to a standard key which will need to be pushed axially, or ...

9. Shaft (mechanical engineering) - Wikipedia

   en.wikipedia.org/wiki/Shaft_(mechanical_engineering)

   The following stresses are induced in the shafts. Shear stresses due to the transmission of torque (due to torsional load). Bending stresses (tensile or compressive) due to the forces acting upon the machine elements like gears and pulleys as well as the self weight of the shaft. Stresses due to combined torsional and bending loads.