Bearing sealed technical research and sealed bearing quality current situation:
Main research contents and current situation with low quality of sealing the bearing of the goal according to China at present, the main research contents will be in the future:
Study and test at first, and select the sealing of the deep ditch ball bearing and enclose the structure and develop the inner circle seal groove structure of the corresponding bearing, carry on the update that the current deep ditch ball bearing sealed the structure, try to make this kind of bearing sealing property keep abreast of the advanced stage of the like product of the end of the 1990s in world in 2005; Bearing enterprises navigate
Secondly, combine the development of Chinese car industry, develops the high temperature that is suitable for working under 120-180 ℃ high temperature for a long time and seals the bearing; Bearing enterprises navigate
The third is to send the cylinder of taper and roll represented by rolling stock bearing the sub bearing series use the sealed new structure. Bearing enterprises navigate
Chosen the basis:
It is the things of more than nearly 4 years to install the seal installation with bearing, the past bearing is the turning on type, it is lubricated and dustproof in order to guarantee the bearing, the seal installation is set up on the axle containing bearing both ends. Inquire about the software bearing world in bearing type of the car
With the development of industry, especially food industry, the popularization of modern office machinery and electrical home appliances, require device design to be compact, the weight will prevent leaking while lightening, will leak gas, this has presented bearing with seal installation of the bearing. Inquire about the software bearing world in bearing type of the car
It is more to apply in deep ditch bearing having a large capacity and a wide range at first, all kinds of rolling bearings have a bearing with different sealed circles to appear in recent years, the bearing seals and melts one of the important directions that is the technical development of a bearing, 1/4 of the Chinese bearing output have already held the sealed circle at present, there will be 2-3 kinds of bearing structure every year the following ten years, 20 million – 30 million sets bearing will be developed into a sealed structural bearing. Inquire about the software bearing world in bearing type of the car
Different structural bearing and different operating modes used, it is different from material to require the structure of the sealed circle, so the work load of its research and development is very large. Inquire about the software bearing world in bearing type of the car
The intersection of development trend and several big the intersection of bearing and Company Seiko, Japan, two,etc. of Japan outside the China Have represented the direction in which the bearing seals the technical development. Inquire about the software bearing world in bearing type of the car
They have relatively early history in developing the sealed bearing device technology, study the depth largely, it is comparatively ripe to seal technology at present. Inquire about the software bearing world in bearing type of the car
Develop from sealing the lip sealed lip more only to already, from contact-type to seal, develop non- contact-type to seal; By the look of products type, ball bearing, get away sub bearing, have. Inquire about the system in bearing type of the car
China follow international development trend, develop, have sealed dark the intersection of ditch and ball bearing, the intersection of water pump and bearing, railway taper get away son of circle too Bearing, needle bearing, short yuans of column roll sub the intersection of bearing and odd major kinds of bearings, among them the deep ditch ball bearing is the largest in output, it is widest to employ the surface. Inquire about the system in bearing type of the car
Sealed the bearing quality testing result to see China recently according to the national technological office, China seals the bearing structural design issue relatively largely, the sealed result is not good, it is relatively serious to leak the lipoprotein phenomenon, users reflect strongly. Inquire about the system in bearing type of the car
Through analyzing, it is unreasonable that the main reason is that China seals and encloses the project organization currently, the inner circle does not bring the seal groove, in addition, make the not high reason of precisioning caused. Inquire about the system in bearing type of the car
So, the development trend will be in the future that the Chinese bearing seals technology: Represented by deep ditch ball bearing, test sealed technology, look for and seal and enclose structure and the best sealed life-span best, promote the research of sealed material, it is hard-wearing to look for, ageing-resistant, high temperature resistant material against corrosion, for raise contact-type to seal life-span, develop or sealing that work enclose, lay technological foundation under harmful the intersection of atmosphere and terms under the high-temperature condition. Inquire about the system in bearing type of the car
Study and summarize:
All install corresponding seal installation on the terminal surface of rolling bearing two developing recently in technological summary. Bearing navigation
Its function, on one hand keep lubricating grease oil within the bearing Will run off in not using, guarantee bearing to be in lubricating state, protect the intersection of bearing and external dust or harmful gas, will enter bearing on the other hand, in case cause damaging to the bearing. Bearing navigation
The common sealing with rubber or engineering plastics is enclosed, there are stencil plates that wash the sealing that is made to enclose or the dustproof lid . Bearing navigation
The sealed structure of its sealed circle is varied, its sealed result is different too. Bearing navigation
There is the interval between sealed circle and pivot, claim to be non- contact-type to seal, the smaller the interval is, the better the sealed result is, but allow the rotational speed of the axle to be the smaller; Opposite on the contrary. Bearing navigation
There is no interval between sealed circle and pivot, claim to be contact-type to seal, it is the larger to seal and enclose the contact area exposed to the lip, the better the sealed result is, but allow the rotational speed of the axle to be the smaller, opposite on the contrary. Bearing navigation
The main research contents of sealed technology, it is to research and develop and is applied to the corresponding seal installation of different operating modes, and sealing this enclose material and corresponding person who melt,etc. together of lubricating grease. Bearing navigation
Chinese car bearing network editor.
