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- เผยแพร่เมื่อ 20 ต.ค. 2024
- Dial indicators are an essential tool for maintenance pros. This video gives a brief overview of how dials can be used to measure shaft alignment, and can even be adjusted to show the "true position" of the shafts. Produced by Acoem
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sir I have question in rim and face method why we do Alignment when our pump and motor in decoupled can we do alignment in coupled condition
Why divide by 2 and reset dial to half the value?
Usman, rotating the dial indicator from 12 o'clock to 6 o'clock captures the amount of offset misalignment twice, once at the top and again at the bottom. That is known as "total indicator reading" or "TIR". After resetting the dial to half the TIR value, the dial will be reading the actual amount of misalignment, rather than 2x the misalignment. We call this "true position sensing" because the dial will now be reading the actual misalignment amount at any position to which you rotate the dial.
0.001"=1 mill or 1 thou