Manufacturing method of mixture-lubricated rolling bearing and rolling bearing

A technology for rolling bearings and manufacturing methods, applied to bearing components, shafts and bearings, lubricating compositions, etc., can solve the problems of troublesome bearing inner cavity, high cost of lubricant, and limitation of the maximum operating speed of bearings, etc., and achieve high price and wide coverage Application prospect, effect of improving operation reliability and life

Active Publication Date: 2015-09-09
SHANGHAI F&S BEARING TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first object of the present invention is to provide a method for making a mixture-lubricated rolling bearing, so as to solve the problem of high-temperature bearings using perfluoropolyether grease and fluid lubrication in the prior art. Satisfying the problem of lifetime lubrication and high-temperature bearings using solid lubricating materials, when performing solid lubrication, the introduction of the existing solid lubricating materials into the bearing cavity is troublesome and may interfere with the normal movement of the rolling elements and the technical problems of the maximum operating speed of the bearing being limited
[0008] The second object of the present invention is to provide a mixture-lubricated rolling bearing to solve the problem that in the prior art, high-temperature bearings use perfluoropolyether grease, and when fluid lubrication is used, the cost of lubricants is too high and it is difficult to meet the requirements of lifetime lubrication. Problems and high-temperature bearings use solid lubricating materials. When performing solid lubrication, the introduction of solid lubricating materials into the bearing cavity is troublesome and may interfere with the normal movement of the rolling elements and the technical problems that the maximum operating speed of the bearing is limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of mixture-lubricated rolling bearing and rolling bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] In this embodiment, polyether oil is selected from polyglycol ether (PAG), and solid lubricating materials are selected from graphite and molybdenum disulfide to make double-sided dust cover sealed deep groove ball bearings, such as figure 1 As shown, the bearing manufacturing process and method are as follows:

[0036] (1) Pour solid lubricating material graphite, molybdenum disulfide micropowder and other fillers and additives into polyglycol ether (PAG), stir and mix evenly to make paste mixture 15 as the lubricant for the bearing;

[0037] (2) The outer ring 11, the inner ring 12 and the rolling elements 13 are all made of bearing steel, and are quenched and tempered according to the operating temperature range of the bearing, and are subjected to chemical heat treatment after machining and forming by grinding and super-precision. In this example In the process, the manganese series phosphating treatment is carried out;

[0038] (3) The retainer 14 is made of medium carbo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a manufacturing method of a rolling bearing which takes mixture of polyethylene oil and solid lubricating material as lubricant and the rolling bearing. The manufacturing method comprises the steps of injecting the lubricant which comprises mixture of polyethylene oil and solid lubricating material micropowder into cavity of the bearing and stamping a dust cap, thus a high temperature resistant sealed bearing is obtained. When the bearing operates at the temperature of being lower than oxidation chain scission temperature of the polyethylene oil, fluid film lubrication is formed; and when the bearing operates at the temperature of being higher than the oxidation chain scission temperature of the polyethylene oil, the polyethylene oil volatilizes, and the fluid film lubrication is changed into solid film lubrication. Compared with the prior art, the invention has the advantages that the problems that perfluoropolyether high temperature lubrication oil has high price and carbon is deposited at high temperature are solved, the problem that solid lubricant is required to be adopted from the start is solved, the bearing can actively realize conversion from fluid lubrication to solid lubrication according to running temperature, respective maximum advantages of the fluid lubrication and the solid lubrication are fully played, operational reliability of the bearing is improved and life of the bearing is prolonged, and the bearing is applicable to various high temperature environments.

Description

Technical field [0001] The invention relates to the technical field of special rolling bearings, in particular to a method for manufacturing a rolling bearing using a mixture of polyether oil and a solid lubricating material as a lubricant, and a rolling bearing. Background technique [0002] For rolling bearings working in high temperature environments, the choice of lubricant is directly related to the operating reliability and operating life of the bearing at high temperatures, so it is very important. At present, two lubrication methods, fluid film lubrication and solid film lubrication are mainly used. The following are respectively explained and pointed out their limitations and deficiencies: [0003] 1. Fluid film lubrication: Choose perfluoropolyether (also known as perfluoroalkyl polyether, PFPE or PFAE) as the base oil for high temperature resistant grease, which is generally thickened by polytetrafluoroethylene (PTFE) into grease. Perfluoropolyether has strong chemical ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/66F16N15/00F16N15/02C10M111/04C10N30/08
Inventor 赵联春陈淑英
Owner SHANGHAI F&S BEARING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products