Pump Bearings in Centrifugal Pumps
15 Questions
2 Views

Pump Bearings in Centrifugal Pumps

Created by
@Reusl

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What are the only moving parts of a centrifugal pump?

  • Motor and impeller
  • Shaft and bearings
  • Impeller and shaft (correct)
  • Impeller and bearings

    • What is the function of pump bearings?

  • To support the impeller (correct)
  • To reduce friction in the pump
  • To regulate the speed of the motor
  • To hold the motor in place

    • What type of bearings are typically used by pumps?

  • Ball bearings
  • Shell (sleeve) bearings (correct)
  • Tapered roller bearings
  • Needle roller bearings

    • How are most centrifugal pumps driven?

    <p>By electric motors</p> Signup and view all the answers

    What is required for the pump and motor shafts to be coupled together for direct drive?

    <p>Shafts to be perfectly aligned</p> Signup and view all the answers

    Why is perfect alignment difficult to maintain during operation?

    <p>Due to alignment changes under load</p> Signup and view all the answers

    What does Figure 15(a) illustrate?

    <p>Angular misalignment</p> Signup and view all the answers

    What can cause misalignments of shafts connected by rigid couplings?

    <p>Poor installation or assembly</p> Signup and view all the answers

    What is one of the main problems contributing to misalignment according to the text?

    <p>Bearing wear</p> Signup and view all the answers

    What can flexible couplings compensate for during operation?

    <p>Misalignment due to poor installation</p> Signup and view all the answers

    Why do some equipment intentionally misalign at installation?

    <p>Due to temperature changes during operation</p> Signup and view all the answers

    What method is suitable for all types of couplings to accurately align shafts?

    <p>Micrometer dial indicators</p> Signup and view all the answers

    What is the standard industry practice for measuring misalignment?

    <p>Laser alignment</p> Signup and view all the answers

    What can be used to transmit precise laser measurements to a hand-held computer during laser alignment?

    <p>Shaft-mounted components</p> Signup and view all the answers

    What is used to calculate the misalignment and show where to shim the motor during laser alignment?

    <p>&quot;Hand-held computer&quot;</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser