Bellows design parameters are shown below:
Bellows design parameters are shown below:
 1. Bottom diameter |
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| 2. Hole diameter |
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| 3. Bottom wall thickness |
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| 4. End length L1 |
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| 5. Pitch |
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| 6. Inside diameter |
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| 7. Root diameter |
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| 8. Outside diameter of end |
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| 9. Outside diameter |
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| 10. Number of convolutions |
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| 11. Free length |
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| 12. Total length |
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| 13. End length L2 |
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 Multiplied bellows are producible by putting a number of tubes together as shown in the figure. This type of bellwos is effective in improving the characteristics. |
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