RETAINER AND DEEP GROOVE BALL BEARING

Provided is a retainer (7), including a pair of annular members (8, 8), the pair of annular members (8, 8) being coupled to each other so that semispherical bulging portions (9, 9) which are opposed to each other form pockets (11) configured to retain balls (6). The pockets (11) each include a ball-...

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Bibliographische Detailangaben
1. Verfasser:	SASAKI, Katsuaki
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:	Provided is a retainer (7), including a pair of annular members (8, 8), the pair of annular members (8, 8) being coupled to each other so that semispherical bulging portions (9, 9) which are opposed to each other form pockets (11) configured to retain balls (6). The pockets (11) each include a ball-opposed surface (12) having a ball non-contact portion (14) that is recessed toward a side opposite to the ball side. The ball non-contact portion (14) is formed outside a predetermined region (A) of the ball-opposed surface (12), which includes an intersection (P) of a pitch circle (PCD) of the balls (6) and a straight line (L) extending in a radial direction through a central portion of the ball-opposed surface (12) in a circumferential direction, and has an end portion on a radially outer side which is opened in a radially outer surface (8a) of the annular member (8).