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Rolling bearing and bearing unit

A technology for rolling bearings and bearings, applied in the direction of bearings, ball bearings, bearing components, etc., can solve the problems of bearing life damage, no prevention, bearing rust, etc., and achieve the effect of low affinity and low compatibility

Inactive Publication Date: 2002-07-03
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no countermeasure to prevent the rust inhibitor solution containing the thinner from entering the resin material
[0014] In addition, the aforementioned method of using modified polyphenylene ether as the resin material has a disadvantage in that the exterior of the bearing is rusted, resulting in impairment of the life of the bearing because, as described above, the antirust agent adhering to the outer surface of the bearing is previously removed in the housing

Method used

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  • Rolling bearing and bearing unit
  • Rolling bearing and bearing unit
  • Rolling bearing and bearing unit

Examples

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Embodiment Construction

[0051] Embodiments involved in the present invention will be further described below with reference to the accompanying drawings.

[0052] figure 1 It is a sectional view illustrating the rolling bearing of the present invention. The rolling bearing 1 is installed between the shaft 2 and the bearing housing 3 .

[0053] In somewhat more detail, a rolling bearing 1 comprises an inner ring 4 fixed to a shaft 2, an outer ring 5 fixed in a housing 3, a number of rolling elements 6 interposed between the inner ring 4 and the outer ring 5, holding these rolling elements 6 The retainer 7 separated from each other at a predetermined interval, and the seal plate 8 prevents the grease filled in the bearing as a lubricant from leaking out.

[0054] Formed on the outer surface of the outer ring 5 and the inner surface of the inner ring 4 are antirust films 9a and 9b formed of an oil-resistant material, respectively.

[0055] In some detail, as the resin material of the bearing housing ...

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Abstract

A rolling bearing is described, which comprises an inner ring fitted onto a shaft, an outer ring fitted in the housing, a plurality of rolling elements provided interposed between the inner ring and the outer ring and a lubricant packed thereinside and which is mounted between the shaft and the housing, wherein a rust preventive film comprising an oil-repellent material is formed on at least the outer surface of the outer ring and the inner surface of the inner ring, and a bearing apparatus is also described.

Description

field of invention [0001] The invention relates to a rolling bearing and a bearing device. More particularly, the present invention relates to a rolling bearing and a bearing unit for office equipment such as copiers and laser printers. Background of the invention [0002] Rolling bearings in office equipment such as copiers and laser printers are usually mounted in housings made of resin. In view of maintenance and other requirements, grease is usually used as a lubricant for such rolling bearings. [0003] For this type of grease used in rolling bearings, use a grease containing silicone oil or fluorine oil as a base oil for locations exposed to extremely high temperatures, such as fixed rollers in copiers or laser printers. For other positions, greases based on mineral oils or synthetic oils other than silicone and fluorine oils are usually used, which are cheap and widely available. [0004] A technique for preventing the grease packed inside th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/07C09D4/00C09D5/08F16C33/62F16C33/64
CPCF16C33/62F16C2202/60F16C33/64F16C19/06
Inventor 横内敦传宝功哲正田亨中道治松本靖之
Owner NSK LTD
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