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11月24日星期一

Cylindrical roller bearing market break

Cylindrical roller bearing some people do not understand the technology and market foreign trade, exports bearing pre-sale and after-sale service is not perfect, so as to enter the cylindrical roller bearing  market caused greater difficulties. Cylindrical roller bearing some higher quality foreign trade business, to be mastered a certain market, immediately quit, set up a new company, and the original malicious Tapered bearing  competition, disrupt the market and depress export prices. The ultimate goal of Cylindrical roller bearing industry mergers and acquisitions is to form a few can really have the strength and the international giants contend bearing large bearing group, but now it seems from this Slim-bearing  there is still a gap. Therefore, restructuring in the industry though already in full swing, but still long way to go.

2014年5月5日星期一

the Roller Bearing seal forms affected by the following factors


In order to prevent dust and moisture from entering the bearing to avoid loss of the lubricant in the bearing must be sealed. In general, the bearing seal forms affected by the following factors :
⑴ bearing outside the work environment ;
⑵ bearing speed and temperature ;
⑶ support structure and characteristics of the shaft ;
⑷ lubricant types and performance .
Sealed in accordance with the principle can be divided into two categories : Automotive Lubricants non-contact seals and contact seals . Non-contact seal unrestricted rate . Lower Tapered roller bearing speeds where you can use the online contact seals , commonly used materials with fine felt, rubber, leather , cork or antifriction good hard materials.
Rolling bearing lubricants manufacturers, the main role of the lubricant is to reduce friction and reduce wear resistance , while also reducing the contact stress , to avoid corrosion , vibration absorption , cooling , heat and so on.
Grease and oil lubricated are commonly used in two ways lubrication . Further , in some special cases it is Roller bearing possible Cylindrical roller bearing  to select the lubricating solid lubricants . Which way to use a lubricant , and the speed of the relevant bearing , the rolling bearing is usually used in measuring the speed dn value represents the size of the bearing .
Greased loss is not easy , simple structure, easy to seal and maintain, operate in a long time , just to fill a grease . Fill generally not exceed the amount of grease to one half of the third bearing grease filling too easily lead to friction and heat , affecting the normal performance of the bearing. Smaller than greased friction , heat dissipation, is the main advantage of oil lubrication , so the lubricating oil is mainly used for high-speed or high temperature applications.

2013年11月10日星期日

SKF India's newly built two factories environmentally friendly materials


From SKF Bearing SKF bearings distributor in China , India Ltd. learned , SKF newly built two factories in India today and tomorrow at the completion of each plant for at SKF Haridwar and SKF Ahmedabad factory, which was completed two factories in India, the Indian economy have a great role in promoting development , while promoting lysn-bearing  SKF manufacturing business development in Asia . We follow the SKF distributor in China, to understand these two new factories in India .
SKF Haridwar plant was completed on April 7 , with a total investment of about 250 million kronor , with 200 employees. Primarily serving the automotive parts and industrial industries ; SKF backing bearings  Ahmedabad factory was completed on April 8 , with a total investment amount of approximately SEK 450 million , with more than 300 employees, mainly produce various kinds of large-scale , SKF bearings, primarily serving the railway , wind and heavy industries. Two factories geography class location for SKF manufacturing industry has a great role in promoting.
 SKF President and CEO Tom & CEO , Mr. Johnston inauguration of the new plant in India, spoke on : "SKF development in India has more than 85 years, India's commercial terms and products Roller bearing  for the SKF Group is a very important market , add these two factories, SKF India has five plants , and these plants in India and to support our business growth in Asia . "
SKF India's newly built two factories environmentally friendly materials, all in compliance with the Indian Green Building Council (IGBC) standards , intended to reduce construction and plant environmental impact and reduce the plant's CO2 emissions , with a firm commitment to its energy efficient and environmentally friendly .

2013年9月24日星期二

levels of government support are inseparable


FAG China , Ningxia Limited development process, Schaeffler (FAG, INA, LUK) ( Ningxia ) Co., Ltd. was established in late 2001 , and in May 2002 formally put into operation , began production of railway axle Roller bearing TAROL. In 2003, Ningxia FAG Bearing company pioneered the introduction of railways in China bearing steel cage technology for several large-scale speed rail provides ample technical support. May 2010 to begin production of single row tapered roller bearings , and in May 2012 began trial production of deep groove ball bearings. The company also has obtained ISO 9001:2008 (TUEV), ISO 14001:2004, Association of American Railroads (AAR) and the Chinese Ministry of Railways and many other auditing and certification.
Schaeffler Group (FAG, INA, LUK) ( Ningxia ) company for 10 years along the way, the combination of all employees for their hard work , but also with Yinchuan, Ningxia , and levels of government support are inseparable, but also inseparable from Schaeffler Group headquarters and regional headquarters units of the guidance and support of colleagues . Yinchuan City Vice Mayor Wang Jiubin on tapered bearing of the local government gave a warm speech to Schaeffler ( Ningxia ) Co., congratulations. Subsequently, the Yinchuan Municipal Committee Chairman HE Manming , Yinchuan City Vice Mayor Wang Jiubin and CFO Asia Pacific Schaeffler Schaeffler ( Ningxia ) Co., Ltd. , chairman of the high Bruneau , Managing Director of Schaeffler Greater hook construction Dr. Hui , Schaeffler (FAG, INA, LUK) ( Ningxia ) package Xiaojun , general manager of joint press button to light the marks Schaeffler (FAG, INA, LUK) (( Ningxia ) Co., Ltd. New plant enabled plasma ball . celebration ceremony on behalf of older employees to the company also presented the medals .
FAG China , Ningxia established operations 10 years ago, has developed into Schaeffler (FAG, INA, LUK) in the world's most important production base of railway bearings and Greater China, an important production base . With the new plant put into use the opportunity of the 10th anniversary will be舍弗勒宁夏new takeoff and a brilliant starting point. Wish Schaeffler (FAG, INA, LUK) and Ningxia to achieve win-win situation .

2013年9月17日星期二

metallurgy, plastics machinery and other industries.


Double row tapered roller bearing outer (or inner) as a whole. Two inner (or outer) face close to the middle spacers, clearance by the thickness of the spacer to adjust, and can also be used to adjust the thickness of spacer double row tapered roller bearings are preloaded.
Tapered roller bearings mainly bear radial diameter and axial joint load. Load bearing capacity depends on the outer ring raceway angle, angle greater carrying capacity. These bearings are separable bearings, rolling bearing according to the number of rows into single row, double row and four row tapered roller bearings. Single row tapered roller bearing clearance to be adjusted during installation the user; double row and four row tapered roller bearing clearance in the factory according to user requirements is given, not to be user adjusted.
Tapered roller Backing bearings have tapered inner and outer ring raceway, Tapered Roller arranged in between. All conical surface projection lines are the same point on the bearing axis together. This design makes tapered roller bearings particularly suitable for combined (radial and axial) loads. Most of the axial load bearing capacity is determined by the contact angle α; α angle increases, the higher the axial load capacity. Angle size calculation factor e; e larger the contact angle the greater the bearing axial load greater applicability.
Tapered roller Roller bearing are usually separated type, namely the belt roller and cage assembly of inner components can be composed with tapered conical outer inner (outer) installed separately.
Tapered roller bearings are widely used in automotive, mill, mining, metallurgy, plastics machinery and other industries.
Power transformer is the function of power transmission, voltage conversion and insulation isolation, as a major soft magnetic components, power supply technology and power electronics technology has been widely used. According to the size of the power transmission, power transformers can be divided into several files: 10kVA above for high-power, 10kVA ~ 0.5kVA to medium power, 0.5kVA ~ 25VA for the low-power, 25VA following micro-power. Different transmission power, power transformer design are not the same, it should be self-evident. It was based on its main function is to power transmission, the English name "Power Transformers" translated as "Power Transformer", in many literature is still in use. What is called "power transformer" or called "Power Transformer" is good? Pending technology terminology of authority to choose and decide.
In almost all electronic products should be used, it is simple in principle but according to different occasions (for different purposes) of the transformer winding process will be different requirements. The main function of the transformer: voltage conversion; impedance transformation; isolation; regulator (magnetic saturation transformers), etc., the general shape of the iron core transformer used with the E-and C-type core.
A transformer ---- stationary electromagnetic devices
A voltage-transformer can be converted into AC power with the frequency of another voltage AC power
The main components of the voltage is set in a core and two windings on the core.
Transformer
A coil connected to a power receiving AC power, is called the primary winding, also known as the primary winding.
A coil connected to the load, send AC power, is called the secondary winding, also known as the secondary winding.
The primary winding of the secondary winding

Tapered roller bearings is the largest amount of single row tapered roller bearings


Tapered Roller Bearings defined Alibaba mechanical 2012-03-19 Source: Alibaba mechanical information themes: mechanical printing machinery] [Alibaba tapered roller bearings can be separated from the inner ring with roller and cage assemblies and components outside ring can be installed separately. Roller and raceway contact at the contact line can reduce the stress concentration. Tapered roller tapered bearing can withstand high radial and axial load. The tapered roller bearings can only pass one-way axial load, so as to pass the opposite direction of the axial load on the need install another with symmetrical tapered roller bearings.
Tapered roller Roller bearing is the largest amount of single row tapered roller bearings. In the car's front wheels in recent years to spend the small size of the double row tapered roller bearings. Four tapered roller bearings used in large-scale cold rolling mill and other heavy machines.
Single row tapered roller bearings have an outer ring, the inner ring and a set of tapered roller by a box-type cage into an inner components. Outer and inner component separation, tapered roller bearings according to ISO standard dimensions, any standard model of a tapered roller bearing outer or inner component and the outer or inner components of the same model to achieve international interchangeable. Except that portion of the outer ring of the same model dimensions, tolerances must comply with ISO492 (GB307) requirements, the cone angle of the inner components, component cone diameter must also comply with the relevant provisions of the swap.
Typically, single row tapered roller bearing outer ring raceway of the cone angle of 10 ° ~ 19 ° before to be able to withstand the load and radial load bearing joint action. Cone angle larger axial load capacity are greater. Large cone angle of the bearing, post code plus B, cone angle between 25 ° ~ 29 °, which can withstand greater axial load. In addition, single row tapered roller bearings can be adjusted during installation size of the clearance.

2013年9月16日星期一

Attaches great importance to the interests of employees


In addition, Xiangtan plant also passed the ISO9001 quality management system, ISO14001 environmental management system, OHSAS18001 occupational health and safety management system certification.
" Compared with these certifications , Timken 's own strict quality management system to many , the assessment points turned over several times , and our products must meet strict quality system that can only be delivered to the customer ."
Three crowned as the world 's most ethical companies list
March 12, 2013 , more than 100 countries around the world 36 sectors of the many companies, because 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 . backing bearings 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 .
Timken employees, Timken University at large have learning experience . This is an online site that offers mentoring programs and online training resources , covering about leadership , speech and eloquence , cultural differences, anti-corruption , Roller bearing manufacturing technology, curriculum over 20,000 .
Take general manager Zhong Zhiyong , the April this year , has completed 15 courses , more than 20 courses in the second half there waiting for him .
"Different positions , every year a different course. Course functions, one to help employees improve , the second is for employees in mind , such as legal provisions updated, personal knowledge will have to make ."
In addition, Timken employees worldwide Education Foundation will offer scholarships to children and encourage them to pursue higher education .
Committed to creating sustainable value
As flagship product is the fan backing bearings , Xiangtan plant renewable energy industry has become an important part . Meanwhile, the plant also uses advanced LEED (LeadershipinEnergyandEnvironmentalDesign) environmental standards as a basis for building design , green energy saving in strict accordance with the standard factory building , and in 2011 received a LEED Gold certification. These are Timken responsibilities embodied in the environmental field .
In addition, Xiangtan plant also became the province's first national two safety standardization enterprises.
Among employees , spontaneous ride , pick up litter along the way along the Xiangjiang River ; donate team award , visit the orphanage children ; cooperation with Hunan University , Job Shadow Day ...... conduct these activities so that each participant felt to join communities, fulfilling and enjoyable .
"An honest man , do a down product ." Zhong Zhiyong 's concluding remarks , the simple , yet intriguing.

2013年9月15日星期日

SKF China Company: SKF executives talk about the Chinese market



       In 1912, SKF for the first time in Shanghai Shanghai SKF Roller bearing distributors, and in 1916, established the first sales branch in Shanghai. Today, SKF China is headquartered in Shanghai, with nearly 5,000 employees. SKF China has a large sales and service offices and 13 production units in Asia Pacific customers with high quality products and services. Then the Chinese market for the SKF Group also has how affected? Below are executives in terms of SKF knowledge of the Chinese market.

       SKF China CEO Ai Lan Germany (Erik Nelander) for SKF in China's market, said: "In China expanded SKF medium-sized industrial lysn-bearing production to further strengthen our position in the industrial bearing market position, we can significantly shorten the delivery cycle, and with key customers for close interaction. "

       Swedish SKF Group President and CEO Tom? Johnstone (Tom Johnstone) said: "The SKF Group, China is a very important market, the opening of the new plant to deepen our understanding of China and elsewhere in Asia customers and distribution provider's commitment to the construction of two and in Dalian Dalian SKF bearings factories, such as in Shanghai through the new 'SKF global Technical Centre' co-operation and shorten the development cycle of new products to support SKF industrial market in China's long-term technology development. "

       SKF is working to achieve more Chinese local production. In the next five years, SKF aftermarket industry in China has great potential. End-user demand will shift to value-added services, SKF and its dealers are fully prepared to meet those needs

FAG China , Ningxia Limited 10th anniversary celebration



 2012.06.18 FAG Schaeffler China , Ningxia Co., Ltd. as the world's major production base of railway Slewing bearing , held in Yinchuan, Ningxia 10th anniversary celebration and the official carrier opening ceremony of the new plant . FAG China , Ningxia founded 10 years ago, has become a foothold in Ningxia , the national service of well-known enterprises , Ningxia local economic development and economic exchanges between China and Germany have made outstanding contributions .
FAG China , Ningxia Limited development process, Schaeffler (FAG, INA, LUK) ( Ningxia ) Co., Ltd. was established in late 2001 , and in May 2002 formally put into operation , Roller bearing production of railway axle bearing TAROL. In 2003, Ningxia FAG Bearing company pioneered the introduction of railways in China bearing steel cage technology for several large-scale speed rail provides ample technical support. May 2010 to begin production of single row tapered roller bearings , and in May 2012 began trial production of deep groove ball bearings. The company also has obtained ISO 9001:2008 (TUEV), ISO 14001:2004, Association of American Railroads (AAR) and the Chinese Ministry of Railways and many other auditing and certification.
 Schaeffler Group (FAG, INA, LUK) ( Ningxia ) company for 10 years along the way, the combination of all employees for their hard work , but also with Yinchuan, Ningxia , and levels of government support are inseparable, but also inseparable from Schaeffler Group headquarters and regional headquarters units of the guidance and support of colleagues . Yinchuan City Vice Mayor Wang Jiubin on behalf of the local government gave a warm speech to Schaeffler ( Ningxia ) Co., congratulations. Subsequently, the Yinchuan Municipal Committee Chairman HE Manming , Yinchuan City Vice Mayor Wang Jiubin and CFO Asia Pacific Schaeffler Schaeffler ( Ningxia ) Co., Ltd. , chairman of the high Bruneau , Managing Director of Schaeffler Greater hook construction Dr. Hui , Schaeffler (FAG, INA, LUK) ( Ningxia ) package Xiaojun , general manager of joint press button to light the marks Schaeffler (FAG, INA, LUK) (( Ningxia ) Co., Ltd. New plant enabled plasma ball . celebration ceremony on behalf of older employees to the company also presented the medals .

   

product development and application of linear and other fields to work closely .


 FAG bearings sales center Beijing, January 7, 2012, the internationally renowned wind power equipment manufacturer Goldwind in Beijing at the third supplier conference, Goldwind to the worldwide production of rolling bearings and linear motion products leader - Schaeffler Group (FAG, INA, LUK) award 2011 "Excellent Supplier Award", the Schaeffler Group (FAG, INA, LUK) is the only "Excellent Supplier Award" bearing manufacturing enterprises.

      Beijing FAG Precision bearing sales center live coverage, the Schaeffler Group (FAG, INA, LUK) Division in the wind energy industry has more than 30 years of experience, research and development and production of wind turbines for the full range of backing bearings products. Schaeffler Group's INA and FAG brands of about 60 industrial sectors provide more than 40,000 kinds of standard products ranging widely. Schaeffler Group (FAG, INA, LUK) cooperation with Goldwind has been limited to the bearing, the two sides have been in condition monitoring, simulation operations, after-market development and services, product development and application of linear and other fields to work closely .

       Schaeffler first wind power Roller bearing areas in China to establish a professional product sales and technical service team, with almost all the major domestic manufacturers of wind turbine manufacturers and supporting the establishment of a strong partnership. Goldwind to Schaeffler awarded 2011 annual "Supplier Excellence Award", FAG bearings distributor in China side believes that this award is the Schaeffler Group leader in the field of wind power in China bearing supplier status once again recognized and affirmed.

     Beijing FAG bearings sales center, FAG Bearing stock, direct the country in various industrial cities and regions, you are welcome to call us

2013年9月12日星期四

FAG bearings used in the spindle MULTIBRID company fans



      Recently , FAG is MULTIBRID company 5MW wind turbine project, the design and development of the fan shaft weighing seven tons of large FAG double row tapered roller Roller bearing  FAG bearings used in MULTIBRID company fans FAG spindle bearing applications in MULTIBRID company fans spindle. Here FAG distributor in China to tell you about the application in MULTIBRID company fans FAG spindle bearings.

      MULTIBRID company developed a 5MW wind turbine , designed for harsh operating environments far from the sea and design. FAG Group took only eight months , the production took six months. The FAG bearing performance, an outer diameter of 3200mm, the hole diameter is 2620mm, width 485mm, weighs more than 7t. All the bearing inner and outer rings and rolling elements are made of high-grade steel FAG bearings . FAG double row tapered roller bearings are rolling through the middle pin-type cage design, it can be placed close to the full complement cylindrical roller number of rollers , this design ensures bearing in very bad conditions can operate reliably , for example, in the tunnel shield machine in there are many successful applications of experience. FAG rolling tapered bearing used through the middle pin-type cage designed to ensure the bearing in very bad conditions can operate reliably .
 
      FAG double row tapered roller bearing preload internal use of light to achieve optimum load carrying capacity . Lubricated by circulating oil lubrication , lubricating oil through the front main bearing into the gear box will be filtered. In order to ensure the durability of the oil , any contamination must be avoided . Better quality lubricant oil itself determines a longer life , but also help extend bearing life.

 

Low noise, is muted preferred FAG Bearings


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 bearings. 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
       1 light weight
       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 tapered bearing 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6日星期五

PSA NSK Group issued a "Global Quality Award"



       April 19, PSA Group for quality, innovation, delivery, economic performance and sustainable development in five areas of its global suppliers of quality assessment, NSK Roller bearing Group in all aspects because of the quality excellent, won the PSA Group "Global Quality Award "and the PSA Group NSK issued a" global Quality Award "certificate.

      Here is NSK NSK backing bearings distributor in China in the global video conference that, NSK Europe Division in 1998 and the PSA Group group cooperation, mainly for PSA Group and NSK NSK Bearing NSK solutions for powertrain and chassis, over the years, NSK and the PSA Group has always been a close cooperation, and hit a six-year PPM (to ensure product qualification rate reached an average height of a level of quality management methods) O record, won the PSA Group's "Global quality Award."
 
       PSA Group Vice President, Mr. Jean-Christophe Quémard the NSK won the "Global Quality Award" talked about: "NSK as our parts suppliers to provide us with NSK products and solutions to ensure that our energy efficient environmentally friendly cars, and whether it is NSK's product quality performance or R & D capabilities, have reached an excellent water products. "

2013年9月5日星期四

Baosteel Group Chairman Xu Le Jiang said: Baosteel


 Baosteel Group Chairman Xu Le Jiang said: Baosteel on SKF 's long-term support of gratitude. Baosteel and SKF have a long-term good relations of cooperation , and are actively involved in the Shanghai World Expo , and adhere to the road of sustainable development and innovation . He hoped that both sides take this opportunity to further strengthen cooperation and exchanges, explore new areas of cooperation , innovation and business cooperation model, in environmental protection and energy saving on a new path for the "Better City, Better Life " and co- efforts .

      Baosteel and SKF since last September signed a strategic partnership agreement , both sides in deepening cooperation, strengthen cooperation and TFO management to sustainable development and green Baosteel cooperation projects , bearing steel Roller bearing cooperation projects , human resource development and international management cooperation projects , and achieved positive progress .

       The Swedish Pavilion at Expo SKF and Baosteel senior management meetings to further expand bilateral cooperation in the field of innovation cooperation model to carry out green business , and adhere to the road of sustainable development and innovation .

2013年9月4日星期三

Precision bearings mounted the steps



1. Match the mechanical precision Roller bearing on request

Since the accuracy of precision bearings itself in less than 1μm, thus requiring its mating parts (shafts, bearing housings, end caps, ring, etc.) have a high dimensional accuracy and shape accuracy, especially with the surface to control the accuracy and bearing the same level, and this is a crucial point, but also the most easily overlooked.

Must also pay attention to match the mechanical precision bearings if it is not the above requirements, often makes precision bearings in the bearing after installation error occurs several times larger than the original, or even 10 times more errors, fully become a precision bearings, because the match machine the error components are often not simply added to the error of the bearing, but on multiple amplified with different additions.

2. With precision bearings

In order to ensure the bearing after installation without excessive deformation, must be done:

(1) shaft and housing bore roundness and the vertical shoulder block bearing according to the appropriate precision requirements.

(2) is necessary to accurately calculate the rotation of the ferrule with the amount of interference, but also suitable for accurate calculation of the amount of the fixed ring.

Third, replace the lubricant


Oil lubricated tapered bearing in addition to the old oil spilled after, if possible, and then poured fresh oil and let the machine at low speed rotation a few minutes. Residual oil to collect as much as possible contaminants, and then spilled addition to these oil, oil in the best first filtered before use.
Fourth, the cover exposed bearing
1, check the bearings, do not let the bearings exposed to contaminants or moisture. If the work is interrupted, should be oiled paper or similar material plastic film covering the machine.
2, if the check is performed without removing the case may be cleaned under no masking the Roller bearing to be applied with a brush to coat with oil solvent (whitespirit) cleaning, then a dry lint-free cloth or blow with compressed air dry (be careful not to let the bearing assembly starting rotation).
3, similar to a small mirror and dental probe used to check that the bearing surface of the track, the holder and beads.
Fifth, the implementation of re-lubrication.
A non-encrypted cleaning dust cover or bearing; just wipe the external surfaces can be.
2, if the bearing was damaged when the case is to be replaced. In the periodic maintenance shutdown period than replacement bearings bearing damage caused by the sudden shutdown of the loss of more economic and more.

2013年9月3日星期二

Install needle bearing notes


 backing bearings clearance is defined as a case of a fixed ring , another ring in the radial or axial flow by the maximum amount , the clearance is divided into radial clearance and axial clearance two kinds . Move needle bearing assembly, the clearance is not too big, not too small . Clearance is too large , it will cause the load to move the body to withstand the reduced number of individual load increases to move the body , thereby reducing the accuracy of rotation of the bearing , reducing the service life ; clearance is too small, the friction will increase , the heat generated increases, increased wear , also can reduce bearing life . Therefore, the bearing assembly must strictly control and adjust the clearance.
Roller bearing  temperature causes are: oil quality does not meet the requirements or deterioration, lubricant viscosity is too high ; institutions assembly too tight ( lack of space ) ; bearing assembly tight ; bearing ring on the shaft or housing rotation ; overload large ; bearing cage or rolling fragmentation .
1) , the shaft and housing bore roundness and the vertical shoulder block bearing according to the appropriate precision requirements.
2) , it is necessary to accurately calculate the rotating rings fit the amount of interference , but also suitable for accurate calculation of the amount of the fixed ring . Rotating rings blanch the amount of interference to the extent possible should also get smaller . As long as the operating temperature and ensure the effect of thermal expansion , and the maximum speed of the centrifugal force , resulting in a tight fit so as not to creep or sliding surfaces . Fixed ring size according to the work load and bearing size, select small clearance fit or interference fit , too loose or too tight is not conducive to maintaining the original shape exactly .

In bearings in the thrust bearing installation method


Thrust backing bearings and shaft with generally transition fit, seat ring and the bearing housing bore with the generally loose fit, two-way axial thrust bearing rings should be fixed on the shaft to prevent rotation relative to the shaft. Thrust bearing installation method, under normal circumstances the majority of the shaft rotates, the inner ring and shaft so as to win over with, the bearing outer ring and the Roller bearing chamber with clearance fit.
Install thrust bearings, shaft ring and shaft should examine the vertical centerline. Method is:
1, the dial gauge fixed on the tank shell face, the head of the table to touch the top of the bearing shaft rotating bearing ring raceway, while observing dial gauge pointer, if the pointer deflection, indicating ring and shaft centerline axis is not perpendicular. Tank shell hole deeper, we can still use an extension of the dial gauge head test.
2, the thrust bearing is installed correctly, the seat can automatically adapt to the rolling elements rolling, make sure to scroll down raceway body is located. If installed backwards, not only bearing is not working properly, and each mating surface would be subjected to severe wear. As shaft ring and seat ring and the difference is not very obvious, the assembly should be careful not to mistake.
3, the thrust bearing race with the bearing hole should be left between 0.2-0.5mm gap to compensate for parts processing, the error caused by mounting inaccuracy, when in operation bearing ring center offset, this gap would ensure its automatic adjustment, avoid touching the friction to operate normally. Otherwise, it will cause severe damage to the bearing.

2013年9月2日星期一

Bearing the importance and role of lubrication


 Lubrication of Roller bearing  in particular, the fatigue life of the rolling bearing and friction, wear, temperature, vibration, etc. have a major impact. Without proper lubrication, the bearings will not work. Bearing causes of damage showed that more than 40% of the bearing damage are related with poor lubrication. So, good lubrication for bearings is to reduce bearing friction and wear of effective measures.
Meanwhile, imports Precision bearing lubrication and cooling, rust, sealing, ease the impact and other effects.
Bearing lubrication effects can be briefly described as follows
1, in the rolling surface contact with each other or the two form a film between the sliding surfaces of the second surface spaced from the contact surface to reduce friction and wear.
2, using oil lubrication, especially the use of circulating oil lubrication, oil mist lubrication and injection lubrication, the lubricant inside the bearing can take away most of frictional heat, serve as an effective heat sink.
3, using grease lubrication, be protected from external dust and other foreign matter from entering the bearing, and sealing effect.
4, the lubricant has a role to prevent metal corrosion.

2013年8月27日星期二

NSK won the 60th JSAE outstanding scientific paper award


in Yokohama, Kanagawa Prefecture, Japan held JSAE outstanding scientific paper award ceremony, the Japanese Society of Automotive Engineers (referred JSAE) in recognition of NSK in CVT, improved fuel efficiency of technical papers contribution awarded to the first 60 NSK JSAE paper Award for outstanding scientific sessions. We follow NSK bearings distributor in China to understand NSK won the 60th JSAE outstanding scientific paper award.

      JSAE Paper Award for outstanding scientific .1951 by the Japan Society of Automotive Engineers was founded in order to enhance achievements in the field of automotive. NSK to the "temperature on the toroidal CVT transmission analysis" as the theme of the paper better articulated and demonstrated NSK CVT transmissions to improve fuel efficiency point of view, therefore, the solution NSK won JSAE outstanding scientific paper award.

       With the rising fuel efficiency of cars on demand, there is a greater transmission efficiency of large-scale motor vehicle continuously variable transmission and a corresponding needs. NSK to the "temperature on the toroidal CVT Roller bearing analysis" as the theme of the paper, the purpose is to help in the calculation and verification of the proposed increase in temperature toroidal CVT transmission with a standard formula for empirical data to help predict toroidal CVT gearbox transmission efficiency more accurately in further improve vehicle fuel efficiency measures thesis literature.

       And NSK Pacific Convention Center in Yokohama, Japan on May 19 to 21 on the Automotive Engineering Exposition held detailing the toroidal CVT transmission, highlighting NSK transmission technologies to improve fuel efficiency. NSK won the 60th JSAE Paper Award is outstanding scientific NSK transmission technology research in the affirmation that we provide will enable NSK NSK Bearings more efficient products and services, as well as a product manufacturer NSK, will further reduce the realization of energy losses contribute to global sustainable development.