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Shaft Elongation :

Shaft Elongation
Definition :
  • The Shaft Elongation is a measure of deformation that occurs before a material eventually breaks when subjected to a tensile load.
  • The pump shaft transmits the drivetorque to the impellers to centrifugal pumps or to the displacement elements of rotary positive displacement pumps.
  • The shaft of reciprocating positive displacement pumps takes the shape of a crankshaft or a camshaft.
  • Then, Pump shafts are stainless steel bars and that can vary in shape depending on the pump application.
  • These bars are manufactured to a higher standard than common steel bars.
  • While misalignment has no measurable effect on motor efficiency, correct shaft alignment ensures the smooth, efficient transmission of power from the motor to the driven equipment.
  • Incorrect alignment occurs when the centerlines of the motor and then the driven equipment shafts are not in line with each other.
Types :
  • Transmission shafts are used to transmit power between the source and the machine absorbing power. For Example, Counter shafts and Line shafts.
  • Machine shafts are the integral part of the machine itself. For Example, Crankshaft.
  • Axle shaft and Spindle shaft.
Formula :
  • The formula for the calculation is given below.
  • Shaft Elongation = (Total Dynamic Head * Setting from Head Base to Top of Bowls * Bowl Thrust Factor * 12) / (Shaft Cross-Section * 29000000).
  • Beside the formula this calculator works.
How to Calculate ?
  • First, Enter the Total Dynamic Head. Then,
  • Second, Enter the Setting from Head Base to Top of Bowls. Then,
  • Third, Enter the Bowl Thrust Factor. Then,
  • Fourth, Enter the Shaft Cross Section.
  • Click “Calculate” to get the result and then if you want to clear values Click “Reset” in addition to clear the values.
  • Finally, follow these steps to get the result.
Other Calculators :
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