BUTTERFLY VALVE

Bearings 18 and 19 each are formed to have an inside diameter gradually extending toward two ends along an axial direction of a shaft 20 such that the inside diameter of the bearing is smaller at the center portion thereof and is larger at the two ends thereof.

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Bibliographische Detailangaben
Hauptverfasser: HASEGAWA SATORU, WATANUKI HARUO, YOKOYAMA MASAYUKI, TAKAI KATSUNORI
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Bearings 18 and 19 each are formed to have an inside diameter gradually extending toward two ends along an axial direction of a shaft 20 such that the inside diameter of the bearing is smaller at the center portion thereof and is larger at the two ends thereof.