Synthetic resin retainer and ball bearing using the same

A synthetic resin and retainer technology, which is applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of bearing temperature rise, bearing life reduction, and grease deterioration, etc., to prevent the reduction of bearing life and prevent abnormalities Sound, anti-wear effect

Active Publication Date: 2007-05-16
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the annular body interferes with other components such as the outer ring, inner ring, or bearing pads, and the friction generated by contact generates heat, which increases the temperature of the bearing and easily deteriorates the greas

Method used

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  • Synthetic resin retainer and ball bearing using the same
  • Synthetic resin retainer and ball bearing using the same
  • Synthetic resin retainer and ball bearing using the same

Examples

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Example Embodiment

[0055] Hereinafter, an embodiment of the present invention will be described based on the drawings. Figures 1 to 6 show the first embodiment of the present invention. The ball bearing has: outer wheel A 1 , Inner wheel A 2 , In the outer wheel A 2 And inner wheel A 2 A plurality of balls B assembled in between, a retainer C holding the balls B. As shown in FIGS. 3 to 5, the retainer C is composed of two ring bodies 1 and 1, and each ring body 1 is formed into the same shape by synthetic resin molding. In addition, in outer wheel A 1 And inner wheel A 2 The annular space formed therebetween is shown in Fig. 1, and is sealed with a bearing gasket D and sealed with grease.

[0056] As shown in FIGS. 2 to 4, the ring body 1 has a plurality of hemispherical ball holding portions 2 and a plurality of plate-shaped joint portions 3, and the ball holding portions 2 and the joint portions 3 are alternately formed in the circumferential direction. The ball holding portion 2 is provided with ...

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PUM

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Abstract

The invention provides a synthetic resin retainer and a ball bearing using the synthetic resin retainer. The synthetic resin retainer is formed by connecting two sheets of annular bodies by the engagement of engagement claws with engagement holes to prevent it from being worn at the engagement parts of the engagement claws for integrally connecting two annular bodies to each other. A plurality of semi-spherical pockets (4) are formed in the abutting faces of two annular bodies (1) and (1) circumferentially at equal intervals, and the engagement claws (6) and the engagement holes (5) are formed at the engagement parts (3) between the adjacent pockets (4). The engagement claws (6) are so engaged with the engagement holes (5) that a clearance in the radial direction of the retainer can be formed between the engagement claws (6) and the engagement holes (5) at the beginning of the insertion of the engagement claws (6) and can be set to 0 or less in the engaged state of the engagement claws (6) with the engagement holes (5). Thus, the engagement parts of the engagement claws (6) can be prevented from being slid in the radial direction of the retainer.

Description

technical field [0001] The present invention mainly relates to a synthetic resin cage incorporated in a ball bearing for high-speed rotation and a ball bearing using the synthetic resin cage. Background technique [0002] Patent Document 1 describes a cage made of synthetic resin that is conventionally known as a ball bearing for high-speed rotation. [0003] In the synthetic resin cage described in the aforementioned Patent Document 1, a plurality of hemispherical recesses along the outer circumference of the ball are provided at equal intervals in the circumferential direction on one side surface of the two ring-shaped bodies made of synthetic resin moldings. , an engaging hole is provided at the junction between adjacent recesses, an engaging claw is provided on one side of the engaging hole in the circumferential direction of the retainer, and the above engaging claw is inserted into the engaging hole of the annular body on the other side , so that the two rings are com...

Claims

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Application Information

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IPC IPC(8): F16C33/44F16C43/06
Inventor 内藤健一郎
Owner NTN CORP
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