| 1. | Its shell is involute, with only the outer whorl exposed.
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| 2. | Involute gears are better for meshing gears of different sizes than epicycloidal.
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| 3. | Shell involute, whorls strongly embraced, venter acutely rounde.
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| 4. | It possess a moderately involute shell with flat or slightly rounded sides.
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| 5. | In contrast to RICH, NICH does not involute and rarely ulcerates.
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| 6. | Its shell is involute, strongly ribbed, with a small umbilicus.
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| 7. | For every pair of conjugate involute profile, there is a basic rack.
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| 8. | Finally, IH involute over a period of years.
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| 9. | Most of the gears are manufactured by involute profile with 20?pressure angle.
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| 10. | Shells produced are extremely involute and have no umbilicus.
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मोबाइल