显示标签为“Roller bearing”的博文。显示所有博文
显示标签为“Roller bearing”的博文。显示所有博文

2014年9月1日星期一

Tapered roller bearings Economic Zone grasp opportunities

an increase of 29.2%; industrial added value of 35.3 billion yuan, an increase of 28.8%, the bearing industry has become the first Wafangdian an industry. Wafangdian party secretary Xing-Wei Liu said the city is in accordance to build two industrial clusters and the idea of ​​the six industrial base, the introduction of nurturing top talent, improve the high-end research and development capabilities in an effort Crossed Tapered Roller Bearing to "bearing capital" Wafangdian, playing with a tip the development of a world-renowned city bearing capacity.
Area of ​​less than 3,800 square kilometers of but it is the birthplace of China's bearing industry, developed more than 500 years of  led by bearing production and ancillary businesses. Among them, the size of the business 258; sales revenue over $ 50 million enterprise 27 million over the business 9. 2009 achieved sales revenue of over 150 bearing billion. Bearing industry practitioners 5 million, accounting for 16.1% of total employees in the same industry, accounting for about 20% of the national Roller bearing total output value of the industry.
 stressed  coastal economic zone are to seize the development of open and Dalian global urbanization strategic opportunities, and vigorously promote coastal development, vigorously develop strategic emerging industries, to enhance urban functions, improve people's livelihood well-being, for the "second five "to achieve a new leap in scientific development and lay a solid foundation, built in the Sea region will  competitive emerging modern industrial city.
50 selected Chinese bearing industry

2014年8月24日星期日

main points of the Platform for Tapered roller bearings enterprise industrial base next five years is the development



2013 machine tool industry will be an important opportunity for growth or for industrial transformation and upgrading of the main points of the Platform for enterprise industrial base next five years is the development of remanufacturing industry, nuclear power China Nuclear Power Company Electric rapid development of nuclear power industry giants Roller bearing will share trillion feast Audi Volkswagen plant in North America Audi car repairer recognized in North America to build engine plant plans to consider  Taiwan Tapered roller bearings  2010 units over the same period a slight growth of the semiconductor industry SAT SAT target 4.1% tax periods: "Twelve Five" tax to  Taper bearing  maintain sustained growth mold precision plastic mold parts rapid development of China's plastic mold industry increasingly slim bearings large Chinese companies reporter Carter Eaton parts giant merger is intended to keep a close eye beautiful new generation of Asia-Pacific market ships ideal type of ship electrica                                              l wiring four advantages terminal control system aerospace aer                                                                            ospace hydraulic device system material successfully developed special hydraulic machine Executive Vice President and Secretary General of China Machine Tool Industry Association, said Wang Liming, on the 6th, 2013 is expected to total industrial output value of China's machine Tapered roller bearings tool industry will maintain a growth rate of over 10%.

2014年6月4日星期三

china bearings prompting the construction machinery manufacturing recovery industry


Since the implementation of the " two sessions" of economic growth targets proposed implementation of urban infrastructure construction projects around the climax off , started intensive railways, highways , subways, affordable housing , water , ports, airports and other major projects , prompting the construction machinery manufacturing recovery industry , stimulating demand for construction machinery , Stainless steel slewing bearing  market demand will subsequently released.
From recent Gcr15 spindle steel downstream users in March production plan research situation , automobiles, marine vessels , oil pipeline industry to maintain stable operation ; engineering machinery, bearings industry increased. Downstream industry demand for effective bearing steel increased compared with February . For example Gcr15 Roller bearing  steel companies in March contract orders generally good condition . Improved downstream demand is conducive Gcr15 bearing steel market stability , bearing steel prices steady rise is a major supporting force .
Bearing Manufacturing Industry Development of China's strong momentum of steady bearing steel market will bring positive effects to the good . A number of significant growth in demand for high-end bearings , such as aerospace bearings, machine tool spindle speed precision bearings, ball bearing precision angular contact ball bearings , high-speed spindle bearings, precision bearings for machine tools photovoltaic industry , turntable bearings, wind power bearing , shield machine bearings, rolling mill bearings, high-speed rail bearings, automotive bearings, crane sheave bearings , turbocharger bearings, hydrodynamic bearings and so on.

2013年11月10日星期日

Swedish SKF Group layoff 1,600 people worldwide


Swedish SKF Group layoff 1,600 people worldwideYesterday, at the Swedish SKF Bearing Group global backing bearings  video conference was the SKF bearings distributor in China , Sweden, SKF Group expects 2010 global layoffs more than 1,600 people in two new factories built SKF India increased by about 500 people, in order to reduce costs and speed up SKF Group is the global pace of development.
2009 , due to the financial crisis, the global economic slowdown , SKF Group was approximately 4900 people Roller bearing worldwide layoffs around ( mainly U.S. and European markets ) , due to the successful implementation of the program , the face of the market slowdown in 2010 , SKF planned layoffs worldwide about 1,600 people , and three new factories in the world , two in India, has been completed , one in Russia , with a total investment of approximately $ 490 million .
SKF Bearing Group CEO tomjohnstone in this global layoffs , said: As the market slow economic recovery , we must adopt appropriate solutions to address the global economic development , and at the same time in order to reduce the cost of our production capacity and SKF bearings price, so that the interests of customers maximization, we decided in 2010 to lay off 1,600 people worldwide solutions.

2013年10月7日星期一

It is reported that the original transformer used for the S7 -type transformers, is the 1980s products


Within two years of high energy transformers "laid off " Source: Published: 2011-
Cixi : within two years of high energy transformers "laid off "
WASHINGTON ( Reporter correspondent Zhang Lu Li Li ) Recently, the City Power Supply Bureau powered by city staff came Yu Bo community , the community S7 -type high- energy transformer replacement for the new energy saving amorphous alloy distribution tapered bearing , reduce power loss. So far, over 35 units within the city limits S7 ​​-type transformers are replaced with high energy saving and environmental protection -type transformers.
To actively respond to national call for the elimination of backward production capacity , accelerate the construction of new rural electrification , increase the energy saving new equipment applications . Recently, the City Power Supply Bureau launched a comprehensive high-energy transformer replacement work , a new round of rural power grids in the process of implementation of the elimination of old transformers work .
It is reported that the original Roller bearing used for the S7 -type transformers, is the 1980s products , power loss, has been unable to further meet the increasing distribution network power quality and reliability , and vigorously promote the new energy-efficient distribution transformers is imperative. In this high-energy transformer replacement work , S7 -type transformers will all be replaced with new energy-saving transformer - saving amorphous alloy distribution transformers . Energy amorphous alloy distribution transformer "posts ", the 10 kV line to reduce line loss rate . This is a loss of the transformer itself is only a year can reduce the energy loss of about 30 million kilowatt hours and reduce carbon emissions of approximately 265 tons .
Currently , the city 's other 62 units within the S7 -type transformer replacement work is proceeding as planned steadily. Transformer replacement is completed within the city limits , the city Bureau will comprehensively promote the rural power transformer replacement work , the next two years will be full of high energy transformers exit the city grid.

2013年9月24日星期二

KOYO bearings distributor in China


KOYO Roller bearing distributor in China
KOYO bearings distributor in China Koyo (Japan's Koyo Seiko Co., Ltd.) is a company with a long history and culture in Japan, ranking third in the world comprehensive bearing manufacturer, Japan KOYO Koyo Seiko Co., Ltd. for the production of one of Japan's four main bearings , KOYO worldwide users enjoy high popularity and praise the quality of friendship.
 Koyo Koyo backing bearings was founded in 1921 and has 6,557 employees. In Japan, eight main production plant (all passed ISO9001 certification) and 28 sales outlets abroad have nine production plants, 24 sales points. Koyo Bearing 1999 Bearing Sales by Product Category realized 186.7 billion yen, car steering 119.3 billion yen, 55.1 billion yen other products, 52% of total sales, respectively, 33% and 15%. Koyo bearings are widely used in smelters, mines, steel mills rolled mechanical equipment, power plants, gas turbines, electrical power equipment factory demanding bearings.
 KOYO KOYO bearings distributor in China leading products are: KOYO bearings, KOYO deep groove ball bearings, KOYO high-precision bearings, KOYO self-aligning bearings, KOYO Bearings, KOYO flat ball bearings, KOYO short cylindrical roller bearings, KOYO linear guide bearings , KOYO ball screw bearings, KOYO miniature linear guide bearings, KOYO cross roller guide bearings, KOYO reciprocating rotary bushing bearings, KOYO ball slide bearings, KOYO cam follower bearings

2013年9月16日星期一

A check is required prior to clean the surface of the machine


In shutdown, how to check of rolling Roller bearing
Periodically check the bearing seal is a very important step. Optimal inspection time is arranged in a regular stop check period.
First, the importance of a clean bearings:
A check is required prior to clean the surface of the machine, and then remove the bearing surrounding parts.
2, the seal is very fragile parts, so need to be careful disassembly, do not use excessive force.
3, then carefully check the seal and the surrounding parts, if you have shown adverse symptoms, be sure to replace the lost, poor seal will lead to bearing damage and lead to equipment downtime.
Second, check the lubricant
Stained point lubricant friction between two fingers, if contaminants can feel it, or coated with a thin layer on the back of the hand lubricant and seal-ray.

Describes the importance of imports bearing lubrication and effect
Lubrication of the bearings, in particular, the fatigue life of the rolling Roller bearing and friction, wear, temperature, vibration, etc. have a major impact. Without proper lubrication, the bearings will not work. Analysis to understand: Bearing causes of damage showed that about 40% of the bearing damage are related with poor lubrication. Therefore, well lubricated bearings is to reduce bearing friction and wear of effective measures.
Bearing lubrication effects can be briefly described as follows:


2013年9月13日星期五

FAG New - nylon cage tapered roller bearings



 Yesterday, at FAG Roller bearing distributor in China at Schaeffler (FAG) Group, a global video conference experience FAG New - nylon cage tapered roller tapered bearing  This means that FAG tapered roller bearing product range expanded in the future will include nylon cage standard tapered roller bearings. Here follow FAG FAG distributor in China to learn new - nylon cage tapered roller bearings.
FAG Bearings Nylon cage, referred to as plastic protection, is the alternative to copper cage, steel cage of a new generation of products, in terms of the relative metal cage, has a great advantage.
 FAG tapered nylon cage: roller bearings have the following characteristics
 2 small vibration
 3 small friction
 4 optimization lubricant film formation
If you use a nylon cage FAG tapered roller bearings can bring you the following benefits:
1 Low noise, is muted preferred FAG Bearings
(2) high-performance, FAG bearing life and performance are improved
 3 In the case of poor lubrication has higher durability
 Nylon cage FAG tapered roller bearings have been used in railway bearings, automobile transmission bearings, buses and commercial trucks, wheel bearings, as well as wind power machine tools and other machinery were the main bearings.
Nylon cage FAG tapered roller bearings have the suffix TVP, and that the data has been imported series bearings Schaeffler (FAG) BEARINX Group's FAG Bearings sample system, you are welcome to inquire FAG bearings price.

2013年9月11日星期三

Schaeffler Group is a wrong decision


         FAG backing bearings distributor in China Editor: a person to be a wrong decision could make in his life towards another result, of course, a group to be a wrong decision also makes this group toward the wrong end, it is the German FAG Bearing Group concerned with the impact of the financial crisis last year, Schaeffler (Germany FAG bearings) Continental Group acquired the wrong decisions, resulting in the Schaeffler Group into financial difficulties into a sluggish state, half political reasons, half is too much debt. Here is our distributor from Germany, FAG Schaeffler Group headquarters learned the news a wrong decision.
   
          We learned from the Roller bearing in Germany FAG bearings, Schaeffler Schaeffler Group Nvzhang lady (Maria-Elisabeth Schaeffler) In an interview with "Der Spiegel" interview, said it was "our mistake" and misjudged the situation. Continental tire company had to admit that the acquisition was a mistake, and should feel regret. Schaeffler lady that her family business is a victim of the financial crisis. In addition, her son George (Georg Schaeffler) External also admitted that the family business is not estimated to last year's financial crisis is so severe, otherwise we will not borrow so much debt to the banks for the acquisition of Continental tire company.

          According to statistics, the Schaeffler Group as a result of the acquisition of Continental's bank debt owed ​​has reached 12 billion euros. Not long ago, the Schaeffler Group has formally apply to the state aid, in an interview with Mrs. Schaeffler still stressed the need to seek help from the state. Currently, the Group needed 6 billion euros of funds used to repay bank debt, otherwise Schaeffler family could lose control of the entire group.

FAG self-aligning ball bearings heat



        FAG self-aligning ball Roller bearing  age: glass fiber reinforced poly amine wash cage, working temperature less than 120 degrees Celsius, the ball guided solid brass cage, while paying attention to oil change intervals.

        FAG self-aligning ball bearings allow speed: can be higher than the reference speed, but less than the limit speed, to consider the environmental impact.

        FAG self-aligning ball bearings heat: 150 degrees Celsius at a temperature not higher than the same time to take into account the work cage material.

        FAG self-aligning ball Taper bearing mounting dimensions: Before installing the adapter sleeve aligning ball bearings, we must consider the size of the support ring.

        FAG self-aligning ball bearing suffix: C3 radial clearance than normal clearance, K Tapered bore, M ball guide machined solid brass cage, .2 RS with both ends closures, TV glass fiber reinforced poly amine wash cage

Here we FAG Bearing distributor and cost details about


Harbin FAG tapered bearing: Germany FAG Bearing Group China Office was established in Harbin
We learned from the group Schaeffler, Germany FAG Bearing Group in China, we have established a new office in Harbin, Harbin office is the Schaeffler (FAG Bearings) Group was established in our first 16 sales offices office, this marks the establishment of the Office of FAG bearings Schaeffler Group's China Roller bearing confidence.
 Here we FAG Bearing distributor and cost details about
March 20, 2009, the Schaeffler Group China Harbin Office officially opened. Opening day, the scene of clients from different companies, dealers Schaeffler Group China Industrial Division Managing Director and CEO Dr. Gou Jianhui month and the mayor of Harbin, the Schaeffler Group's management and industrial enterprise in China Ministry senior manager in various industries and offices of the main leaders, Dr. Gou Jianhui stressed in his speech. "Harbin Office was established precisely Heilongjiang and Jilin provinces in order to strengthen the operational and customer service, we seek common development with customers." Schaeffler many years of cooperation with customers and dealers are also opening ceremony on behalf of their not only congratulated the establishment of the Office of Harbin also expressed his future to strengthen cooperation with the Schaeffler confidence.

FAG bearings distributor in China Commentary


Schaeffler's working capital guarantee to the creditor banks early next year
        We learned from Germany FAG Bearing Group, Schaeffler Group's creditor banks in order to protect those in early 2010, the Schaeffler Group has sufficient working capital, debt had reached an agreement and the Schaeffler Group, Schaeffler those claims can go to next year early repayment ...

        FAG backing bearings distributor in China Commentary: The reason why the formation of such a situation, but also because, in August 2008, for the acquisition of Continental Schaeffler Group to the banks for more than 100 billion euros (about $ 13 billion) in loans. Afterwards, as the financial crisis raged. Schaeffler ready to repay bank debt sharply devalued mortgage assets, which makes the company's debt crisis worse. Schaeffler said the company intends to sell some of the shares, while short-term financial support to the government seeking to fill about 60 billion euros of its funding gap.
 
        So indebted German FAG Roller bearing Group has reached a transitional period with its creditor banks agreement to ensure that the company in early 2010 has enough working capital. The bank decided to protect the Schaeffler's ability to repay, so that it has sufficient fiscal space to develop new financing options. But the two sides have not disclosed details of the agreement. Such Schaeffler company will likely restructure its due to Continental's "Tunxiang" type of acquisition and destruction operations and financial structure.

2013年9月10日星期二

Zhejiang FAG Bearings: fag angular contact ball bearings


 We FAG bearings sales center in Jinan and give a detailed introduction about FAG deep groove ball Slewing bearing  bearing in order to let everyone have a deeper understanding, from Zhejiang FAG bearings sales center that fag angular contact ball bearings for more information.
 FAG angular contact ball bearings are divided into two categories. Respectively, FAG single row angular contact ball bearings and FAG double row angular contact ball Roller bearing  the following details of the structure and characteristics of their analysis for everyone:
 FAG single row angular contact ball bearings:
 FAG single row angular contact ball bearings features: can withstand radial and axial load, it can work with another load of bearings used in combination, can not be split, for use in high speed. 7 begins
        FAG single row angular contact ball bearing cage: Most made ​​of glass fiber reinforced nylon 66 (TVP) made ​​cage can be stable at 120 degrees Celsius. Additives in lubricating oil may affect the life of the cage.
        FAG single row angular contact ball bearings allow speed: play under favorable conditions of work, bearing speed may be higher than the reference speed, but not higher than the speed limit, the general structure UA and UO bearing, using X-type or arranged in series, the actual Operating speed is generally greater than the calculated use of single bearing operating speed by 20%, if the measures are bearing on the working speed can reach the speed limit.
        FAG single row angular contact ball bearings Heat treatment: In no more than 150 degrees Celsius temperature. Outer diameter greater than 240 may be not higher than 200 degrees Celsius. Nylon cage, the cage by limiting allowable temperature.
        Single row angular contact ball bearings FAG general structure: X: face to face arrangement O: back to back arrangement T: tandem arrangement UA: X and O arrangement reduces the axial clearance UO: X and O arrangement axial clearance is 0
       

2013年9月4日星期三

About Bearings fever causes and solutions



lysn-bearing fever causes and troubleshooting

(1) Reason: low precision bearings
Methods: The specified accuracy class bearings.

(2) Cause: The spindle is bent or housing bore different heart
Methods: Fix spindle or cabinet.

(3) Cause: The bearing housing laps
: Replace worn bearings and related components.

(4) large axial force
Methods: cleaning, alignment ring seals the gap between the requirements of 0.2 ~ 0.3mm, correct impeller balance hole diameter and the checksum static equilibrium values.

(5) Roller bearing damage
: Replace the bearings.

(6) Reason: belt too tight
: Adjust the belt so that proper tightness.

(7) Reason: poor lubrication
Methods: provide grade lubricating material and properly cleaned.

(8) Reason: low quality of assembly
Methods: To improve the quality of assembly.

2013年9月3日星期二

also in line with the core values ​​of Timken 's first ethics and integrity .


March 12, 2013 , more than 100 countries around the world 36 sectors of the many companies, Roller bearing in commercial practice and adhere to abide by the principle of good faith has played an exemplary role , Timken 3rd boarded the U.S. Ethisphere Institute released " world's Most ethical Companies list ." U.S. Ethisphere Institute (EthisphereInstitute), is a commitment to advancing corporate governance, risk management, sustainable development , compliance and business ethics best practices in the field of international institutions .
For this award , Zhong Zhiyong very identity . tapered bearing they each do one thing they have to consider: how local laws and regulations is required ? Compliance is a prerequisite for survival , also in line with the core values ​​of Timken 's first ethics and integrity .
Attaches great importance to the interests of employees
Under normal circumstances , Timken interests hoping to achieve three unified , that shareholders 'interests , the interests of customers , employees' interests
Here, not only refers to the remuneration of employees' interests , but also including the work environment , individual capacity building , career development and so on. Provide resources to help employees self-study, in order to achieve the ability to enhance , is one of them .

2013年9月2日星期一

Shaft and bearing the processing characteristics


1 shaft machining characteristics

Shaft is generally cylindrical, surface roughness requirements are relatively high, so the surface must be grinding shaft, grinding the workpiece (shaft) Shaft rotation direction should be the direction of rotation when the actual work is consistent. If the shaft surface roughness after grinding also meet the requirements, need for grinding or polishing. Shaft material after heat treatment should be sufficient hardness for grinding and polishing.

(2) processing characteristics bush holes

Roller bearing materials are usually softer inner cylindrical surface should not be processed by grinding method can be used boring, boring diamond, scraping or grinding process.
Grinding should not be used with the shaft with research methods, and should use a special, dimensions and bearing the same hole size pestle.

Scrapers used for part of the bush bearing, with a wide blade scraper machine scraping. When hand-scraped, scratched should be shallow.

Inner surface of the complex shape of the bush, should be based on the specific shape using a special method of boring.

2013年8月27日星期二

SKF forest planting projects to invest in China


  We know that the Swedish SKF Roller bearing Group is very concerned about its impact on the environment, and in 1989 released the first environmental policies. May 21, we learned from SKF bearings distributor in China, SKF and China State Forestry Administration of China signed a framework agreement in remote areas of afforestation. SKF investment through Chinese forest planting projects, hoping the field of environmental protection and social responsibility to contribute to the local community.
  SKF forest planting projects to invest in China held in Beijing, "Sweden and China Innovation Week" kick-off ceremony was held at the signing ceremony, the project is expected to last five years. SKF has been selected forest industry's leading research institutions - the Swedish University of Agricultural Sciences (SLU) as a technology partner.
 SKF Group President and CEO Tom. Johnstone SKF investment in China's forest plantation project signing ceremony, said: "We have always been committed to manufacturing operations to reduce the negative impact on the environment, while providing customers with new environmental value technology, new products and services and we know that the forest in the ecosystem plays a vital role in this project for the sustainable development of our work and beyond zero plan is a favorable support. "
 With environmental and ecological awareness in SKF's daily operations have always played an important role. SKF in 1989 promulgated the company's environmental policy. SKF is the first to obtain ISO14001 certification of multinational companies worldwide, covering 17 countries, 63 units of departments. China's goal is to 2050 the forest coverage of more than 26%. SKF has a strong sound processes that can continually improve manufacturing operations and production equipment energy efficiency. Therefore, we can greatly reduce carbon dioxide emissions. Over the past four years, reduce carbon dioxide emissions by 27%, a decrease of 150,000 tons.

2013年8月26日星期一

SKF involved in solar aircraft project


 Solar has been a focus of modern society concerns, aircraft manufacturers now also try to drive solar energy as aircraft fuel to run, Sweden's SKF Group was the news, actively participate in the construction of solar aircraft project, and efforts to develop suitable solar-powered aircraft bearings and SKF SKF energy efficient solutions. We follow SKF SKF Roller bearing distributor in China to understand the involvement of the solar aircraft project.
 Solar aircraft project is the use of advanced technology and light composite materials, the solar energy as a renewable resource driven, allowing the aircraft to reduce energy consumption, SKF involved in providing solar aircraft project is mainly used for propeller-driven aircraft SKF hybrid deep groove ball bearings, SKF and the use of abundant solar power system knowledge to help build a simulation of solar aircraft project aircraft environment.
 SKF to develop energy-efficient solar-powered aircraft project, SKF bearings and SKF energy efficient solutions that can effectively make this project implementation, expected in 2013 completed the first solar-powered aircraft flight test work Sweden SKF Bearing Group President and CEO Tom Johnstone said: "Shanghai Expo theme with SKF sustainability strategy pursued over the years coincide in the environment, we have been committed to reducing the company's business on the environment impact, focusing on research and development to help customers reduce energy consumption of products and solutions for our Expo to build a good platform for SKF opportunity to work with many local and international customers face to face communication, display our newly developed products and SKF bearings solution. "

2013年8月25日星期日

TIMKEN acquisition of QM company, increasing product lines


 Shanghai Electric Timken Bearing Company - USA, Inc. today announced an agreement to acquire Timken QM Bearings and Power Transmission Co., Ltd., the new product line will serve as QM Timken's recently released E-Series product line useful complement Timken Company expects The transaction will be completed in the fourth quarter of 2010, the specific terms of the transaction undisclosed. Here are Timken bearings distributor in China reported.
QM Bearings and Power Transmission Co., Ltd. was founded in 1951, initially serving regional sawmills and logging industry customers. Since then the company began to design and manufacture bearing products to meet often in harsh environments logging equipment. QM seat belt manufactured steel spherical roller bearings, elastic and steel couplings used, such as sawn timber harvesting processing industry and other harsh conditions of the processing industry. Last year, QM company's sales revenue totaled more than 14 million U.S. dollars.
  The acquisition reflects Timken's philosophy has always been committed, namely: To extend the life of mechanical products offer customers a broader range of friction management and power transmission solutions. QM company complies with the acquisition of The Timken Company's development strategy, both to strengthen the company's penetration in the field of high-performance applications, but also in the original core business of Timken bearings further extends beyond powertrain business strength, increase product lines.
 Timken processing equipment industry, said Chris Coughlin, president, "QM new products to our existing product line, a very good complement Timken emphasis on the distribution business will further boost its access to the global aftermarket business channels. QM new product its reliable, high value-added product line enables us to provide customers with processing equipment industry, a richer selection of high performance products. "
The acquisition will review the relevant government and regulatory authorities become effective upon approval and completion of the acquisition is expected after the first full year of gains. QM new product line will serve as Timken recently released E-Series product line a useful supplement and strengthen the company seat belt Roller bearing business brand position and to forestry and other mechanical properties of the product and durability have more high demand in the industry to provide more products and services.

2013年8月23日星期五

Rolling - Structure



Roller bearing type, structure, size and accuracy class and so forth with the code represents. No special requirements for normal bearings, Chinese code with four Arabic numerals. The front one is a type code, followed by the diameter of the series code, the last two digits for the diameter size code. The bearings have the same diameter of several different diameter, of special light, light, medium and heavy series, respectively, with 1,2,3,4 expressed. Special light series, minimum diameter, heavy series OD Max. 20 to 459 mm diameter bearings, bore size code is bearing diameter by 5. For example 6308:6 represents angular contact ball bearings, three representatives of the series, 08 on behalf of the bearing inner diameter of 08 × 5 = 40 mm.
Bearing load and life of any one element appears before contact fatigue wear running total number of revolutions at a certain speed or the total number of hours worked, called the bearing life. Greatly varied life of rolling bearings, bearing the same batch of operating under the same conditions, its life can vary several times or even several times. Bearing the same batch of 90 percent before the fatigue spalling can meet or exceed the total number of revolutions (or working hours) when referred to the rated life L. Rated life of 1 million revolutions can bear the load of dynamic load rating C. Withstand the maximum load of the rolling element and raceway contact points and the amount of plastic deformation of the rolling element diameter reaches ten thousandth, can bear the load of static load rating C0. Rated load greater load bearing capacity of the stronger. Radial bearings rated load is a pure radial load, thrust bearing load is a pure axial load. Actual load bearing condition often associated with different rated load shall be converted into the equivalent load. In the equivalent dynamic load P under the action of bearing life and the actual life of the same load conditions. In the equivalent static load P0 under the action of the maximum load of the rolling element and raceway contact points with the total amount of plastic deformation under the actual load conditions the same. Bearing rating life, dynamic load and dynamic load equivalent relationship between