1-10 Validity Rule

Рет қаралды 68,711

6 жыл бұрын

When aligning rotating machinery it is imperative that you obtain accurate shaft positional measurements. It is very easy and very common to make mistakes when taking these measurements so this tutorial will illustrate what you have to be aware of when taking your alignment readings to insure that the measurements you obtain are accurate and repeatable. There is a mathematical pattern that occurs when taking readings at 90 degree intervals around a shaft. This pattern is called the Validity Rule. The Validity Rule will confirm that your measurements make sense but more importantly, can derive a missing measurement if you cannot rotate all the way around the shaft.

Пікірлер: 27

@ScottTurnerformeindustrious 4 жыл бұрын

Top notch training. Thank you!

@cesarmaravi7915 3 жыл бұрын

Great video, thanks!

@vaibhavkambli1769 4 жыл бұрын

Thanks sir for detailed information.

@hadidtedji6389 4 жыл бұрын

thank you its very helpful

@dennisminks8282 Жыл бұрын

If the coupling face has 6 bolt holes, place one hole at 12:00, insert a bolt at the 1:30, 10:30 and 7:30 positions. The bolt should have a nut on the backside of the face lightly tightened so the head of the bolt may be turned by hand. An electrician's level can be mounted to the two bolts at the 1:30 & 10:30 positions and the leveled. The hole that was placed near the 12:00 position should now be within a couple of degrees for zeroing. Likewise, when you need the left/right positions, you use the same procedure for locating those points using the 10:30/7:30 bolts.

@shaftalignment6105 8 ай бұрын

Great suggestion Dennis. Thank you for your input. John Piotrowski

@Quy_Tran64 3 жыл бұрын

hi. why when measuring 2 sides we have negative results .but not 1 side negative , 1 side positive . please explain . thanks

@tomconner5067 9 ай бұрын

A degree wheel or increments on the outside edge of the flange/disc diameter would be ideal, and so would a tangential alignment dowel/rod tube on the fixed machine positioned to perform alignment measurements on the adjustable machines rotating shaft and or flange/disc outside diameter which should have incremental 360° markings stepping up increasing at every 5° 10° dot point at every 30° (except @ 0-360°,120°,240°) 45° maximum size at every 90° only diamonds at 0-360° 120° 240° all you need to know is the center and constant radius or diameter

@shaftalignment6105 8 ай бұрын

Great suggestion Tom. Thank you for your input. John Piotrowski

@kelliestratton6991 4 жыл бұрын

Thank you

@khileshkumar838 5 жыл бұрын

Thanks

@hanmantnaronabhusnoor6298 6 жыл бұрын

very nice important

@ayeminnyein1222 5 жыл бұрын

Thank sir

@jonathanponce5228 4 жыл бұрын

Please ad more sample laser alignment how to align and add simming or minus

@samyhassen1314 4 жыл бұрын

excellent

@JaykeSapalaran-iq3qs 10 ай бұрын

Great video information 👍 thanks for sharing your knowledge and experience 🇵🇭🫡

@bossjerometechshow 4 жыл бұрын

Pls sir add in our topic reversed alignment method

@donignasis8355 5 жыл бұрын

Thanks Sir JHON

@shaftalignment6105 5 жыл бұрын

Don: Thank you for watching. I hope this (and the other) tutorials are helpful. John Piotrowski

@tvrteja8837 6 жыл бұрын

Thank you very much for the detailed explanation Wow no Dislikes

@shaftalignment6105 6 жыл бұрын

Ravi - Thank you for your kind words. - John Piotrowski

@amirzayd2805 3 жыл бұрын

Engineer John, I have question. For the validity rule (Top + Bottom) = (South + North) Using clock symbol (12:00 + 06:00) = (03:00 + 09:00) This rule is applicable on Rim Only or Radial readings? How about the Face Readings or Axial, Same or different? Kindly enlightenment me. Thanks 👍

@shaftalignment6105 3 жыл бұрын

Amir: The Validity Rule applies to either radial / rim OR face / axial measurements.

@amirzayd2805 3 жыл бұрын

Thanks very much Engineer/ Sir John 👍

@siddharthnizama8343 2 жыл бұрын