BEARING DEVICE FOR VERY LOW-SPEED ROTATION

PROBLEM TO BE SOLVED: To provide a bearing device capable of preventing an oil film from being broken even when supporting a shaft rotated at a super speed while receiving a large load. SOLUTION: This bearing device for a very low-speed rotation has a rotation running face 2 for supporting a cylindr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JOTOKU MITSUTOSHI, FUJII AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a bearing device capable of preventing an oil film from being broken even when supporting a shaft rotated at a super speed while receiving a large load. SOLUTION: This bearing device for a very low-speed rotation has a rotation running face 2 for supporting a cylindrical rolling element 1 brought into a surface formed with a large number of micro pools 4 of circular arc cross section having 2b/30-2b/3 of diameter with respect to a roller contact width 2b on a mirror finished face of 0.005-0.01 μm, and 0.05-3 μm or less of depth h. The maximum depth of the micro pool 4 is preferably 0.1-0.2 μm. The rotation running face 2 is formed by shot-blast-treating a spherical projection material, on a mirror finished face formed by electrolytic polishing. COPYRIGHT: (C)2011,JPO&INPIT