ROLLER BEARING RETAINER, NEEDLE ROLLER BEARING, AND PRODUCTION METHOD OF ROLLER BEARING RETAINER

• Main Authors: ABE KATSUFUMI, OISHI SHINJI, YOSHIMURA YUGO
• Format: Patent
• Language: English
• Published: 04.11.2010
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

A roller bearing retainer 33 includes a plurality of column parts 15 each containing a column center part 16, a pair of column end parts 17, and a pair of column sloped parts 18 positioned between the column center part 16 and each of the pair of column end parts 17, and a pair of annular ring parts 14 connected to longitudinal one side and the other side ends of the plurality of column parts 15, and having a flange part 19 extending from a position connected to the column part 15 toward the radial inner side. Thus, the column center part 16, the pair of column end parts 17, and the pair of column sloped parts 18 are formed by expanding both axial ends of a cylindrical member, and the flange part 19 is formed by compressing the cylindrical member in an axial direction, and at the same time a thickness of a boundary part between adjacent two parts of the column center part 16, the pair of column end parts 17, the pair of column sloped parts 18, the flange part 19, and the pair of ring parts 14 is made larger than a thickness of each part of the column center part 16, the pair of column end parts 17, the pair of column sloped parts 18, the flange part 19, and the pair of ring parts 14.