METHOD OF MANUFACTURING RADIAL NEEDLE BEARING CAGE

PROBLEM TO BE SOLVED: To provide a method of manufacturing a radial needle bearing cage, using manufacturing facilities inexpensively constructed to be superior in durability for efficient manufacturing work while improving the yield of a material to reduce manufacturing cost. SOLUTION: Progressive...

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Bibliographische Detailangaben
Hauptverfasser:	KANO KAZUHIKO, KOBAYASHI KAZUTO, HORINO KEIICHI
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 provide a method of manufacturing a radial needle bearing cage, using manufacturing facilities inexpensively constructed to be superior in durability for efficient manufacturing work while improving the yield of a material to reduce manufacturing cost. SOLUTION: Progressive pressing work is applied bending and punching to a metal plate 30 in sequence. The metal plate is formed into a fourth intermediate raw material 41 through a first intermediate raw material 34, a second intermediate raw material 37, and a third intermediate raw material 38. The fourth intermediate raw material 41 is separated at its connection portion 32 from another portion to form a unit intermediate raw material 17a which has a length equivalent to one cage. The unit intermediate raw material 17a is rounded into a cylindrical shape and then its circumferential ends are welded to each other to form the radial needle bearing cage. COPYRIGHT: (C)2009,JPO&INPIT