PRESSED PART AND THRUST PLATE OF HYDRODYNAMIC BEARING DEVICE, AND METHOD FOR MANUFACTURING THEREOF

PROBLEM TO BE SOLVED: To make possible avoidance satisfactorily of plastic deformation toward an internal circumferential wall surface 23h1 of a through-hole 23h provided in a pressed part such as thrust plate and the like with simple construction. SOLUTION: By providing a pressure relief part 23e h...

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Bibliographische Detailangaben
Hauptverfasser:	ZENISAWA HIROSHI, GOMYO MASATO, HIRASHIRO KAZUO
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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To make possible avoidance satisfactorily of plastic deformation toward an internal circumferential wall surface 23h1 of a through-hole 23h provided in a pressed part such as thrust plate and the like with simple construction. SOLUTION: By providing a pressure relief part 23e having concave shaped inclined surfaces 23e1, 23e2 extending from opening fringe parts 23h2 at the outer side of the internal circumferential wall surface 23h1 of the through-hole 23h to inner circumference side edges 23a2, 23b2 of press-formed surfaces 23a, 23b, a press load applied to end faces 23a, 23b to be pressed is directed toward an axial direction and the internal circumferential wall surface 23h1 of the through-hole (shaft fixed hole) 23h is maintained in generally straight line shape in axial direction, by reducing volume of plastic deformation as usually occurred toward the radial direction.