Material bearing applications

Material bearing applications
Rings and rolling elements with material
Under normal circumstances, wheel precision bearing rolling with the overall hardening carbon chromium bearing steel. Grades or GCr15SiMn GCr15 steel; turntable bearing ring surface hardened steel is used, when the user no special requirements, generally used 50Mn steel, but sometimes in order to meet the needs of some of the special applications of the host, but also according to the user's selection of specific conditions of use of other brands of hardened steel surface.

Cage materials
Wheel bearings with cage integral structural form, segmented, such as isolation block. Which monolithic and segmented cage with 20 steel or ZL102 cast aluminum alloy. 1010 block isolation polyamide resin, ZL102 aluminum casting and other manufacturing. In recent years, with the development of industrial materials are nylon GRPA66.25 segmented cage design to application.

Seal materials
Wheel Slewing bearing oil seal materials used with NBR rubber. Rings and blank material supply status code as defined in Table, the table, "T", said ferrule blank as quenched state supply, "Z", said ferrule blank to normalizing the status of supplies.

Application of bearings

Application of bearings
Wheel bearings can withstand a large axial load, radial load and overturning moment, such as integrated load durability tester sets, large bearings rotate, transmission, fixed and other functions in a special structure. Under normal circumstances, all with their own turntable bearing mounting holes, lubricants and seals, to meet the different needs of a variety of different conditions of work under the conditions of the various types of hosts; on the other hand, wheel bearings itself with a compact, rotating guide convenient, easy to install and easy to maintain, etc., are widely used in material handling equipment, mining machines, construction machinery, port machinery, wind energy, medical equipment, radar and missile launchers and other large rotary device.

Slewing ring Profile

Slewing ring Profile
Slewing ring, is a comprehensive large Cross roller bearing to withstand load, can withstand large axial, radial load and overturning moment. Slewing ring bearings are generally installed with a hole in the gear or external gear, lubrication holes and sealing devices, which enable the host design compact guide is simple, easy to maintain. Slewing ring bearings with or without gear, external gear teeth and inside the four-point contact ball bearings, double row angular contact ball bearings Crossed cylindrical roller bearings, tapered roller bearings and cross three-row cylindrical roller bearings four composite series, four-point contact ball bearings with high static load capacity, crossed cylindrical roller has a high dynamic load capacity, cross-tapered roller bearings preloaded bearings with greater support to make rigid and rotary precision, three-row cylindrical roller journal bearing due to increased carrying capacity lead bearing height, various forces were borne by the different races, so the same force conditions, which can greatly reduce the diameter of the bearing, which has a more compact so that the host is characterized by a high-load capacity of slewing ring bearings. Slewing ring bearings are widely used for lifting machinery, mining machinery, construction machinery, port machinery, ship equipment and high-precision radar and missile launchers and other mechanical equipment of large rotary device. But also according to the user's specific requirements and design, development and production of special structures slewing ring bearings.

Clutch release bearing failure

Clutch release bearing failure
(1) Operating temperature is too high lead to overheating. Many drivers in turning or deceleration, often half-pedal clutch, some Guadang rear foot on the clutch pedal also; Some vehicles free travel adjustment is too large, making the clutch is not complete, in a semi-bonding, semi-isolated state, this causing the state of the friction generated between the sliding friction plate and flywheel, a large amount of heat transmitted to the angular contact ball bearing, the bearing is heated to a certain temperature, the melted grease or diluted flow, the temperature of the bearing to further improve the separation, when the temperature reaches a certain degree will burn bad release bearing.
(2) the lack of grease and abrasion. Clutch release bearings with grease lubrication. Repair personnel in practical work release bearing lubrication problem is easy to ignore, and do not release bearing lubrication during installation, causing the clutch release bearing starvation. No lubrication or less the amount of wear of bearings lubricated separate release bearing lubrication is often several times to several times. Wear increases, the temperature will increase greatly, so more damage to the release bearing. So in the repair process, the installation of the clutch release bearing lubrication to check, timely lubrication maintenance.
(3) free travel is too small or subject to excessive load times. Upon request, the general clutch lever clearance between the Ceramic Ball Bearings and the separation of 2.5mm more appropriate to reflect on the clutch pedal free travel for 30 ~ 40mm, free travel is too small or no free travel, will make the separation lever and separation bearing in a normally engaged state. According to the principle of fatigue damage, bearing work longer, more serious damage; load times by the more, the more easily separated bearing fatigue damage. And the longer working hours, the higher the temperature of the bearing, the easier burning, reduce separation bearing life.

Bearing history

Bearing history：
In the seventeenth century, the British design and manufacturing ball bearings C. Vallo, and installed in the car to try and British postal P. Wirth made ball bearings patent. Eighteenth century German publication on ball bearings HR Hertz contact stress papers. On the basis of the achievements of the Hertz, Germany, Sweden, Glenn A. Pam, who have done a lot of testing, the design theory and the development of fatigue life of rolling bearings is calculated to make a contribution. Subsequently, the Russian Petrov NP Newton's law to calculate the viscous friction bearings. British Thor O. Renault were found mathematical analysis, Reynolds equation is derived, from the foundation hydrodynamic lubrication theory. The early form of linear motion bearings, is placed in a row in a row of wooden sled. This technique might be traced back to the time of the construction of the Great Pyramid of Giza, although there is no clear evidence. Modern linear motion bearings using the same kind of works, but sometimes with the ball instead of rollers. The first sliding and rolling element bearings are made of wood. Ceramic, sapphire or glass are also used, steel, copper, other metals, plastics  have been widely used. From the heavy-duty vehicle axle and spindle to precision watch parts, many occasions require rotating bearings. The easiest is rotating bearing sleeve turbocharger bearings, it's just a clip in the bush between the wheels and axles. This design is then Rolling alternative is to use a lot of cylindrical roller bushings replace the original, each rolling element as a single wheel. Rolling with the earliest practical input cage is clockmaker John Harrison in 1760 for the production of H3 timing meter invention. Aboard a Roman ship found in the Italian lake nm, found examples of early ball bearings. The wooden ball bearings are used to support rotating desktop. The ship was built in 40 BC. It is said that Leonardo da Vinci around 1500 had been to a ball bearing is described. Ball bearings of various immature factors, there is a very important point is that a collision will occur between the ball, causing additional friction. But you can put the ball into a small cage to prevent this phenomenon. 17th century, Galileo "fixed ball" or "caged ball" ball bearing did the earliest descriptions. But then for a long time, install the sealed angular contact ball bearing has not been achieved on the machine. The first patent on ball channel is Carmarthen Philip Vaughan in 1794 obtained. In 1883, Friedrich Fischer proposed the use of appropriate production grinding machine of the same size, roundness accurate idea of the ball. This laid the foundation for the creation of an independent industrial bearings.

 

Bearing Test Machine the extent of their savings is obvious

The use of wind turbines, wind energy is an endless stream of electricity into a standard household use us, the extent of their savings is obvious, a cost of household electricity only 20 yuan a year of battery fluid. And now the wind turbines have more than a few years  radial clearance ago greatly improved performance, previously only be used in a few remote areas, wind turbines connected to a 15W bulb direct electricity, out of a dark and often damage the bulbs. And now because of advances in technology, the use of advanced chargers, inverters, wind power has become a certain tech small systems, and can replace the normal electricity under certain conditions. Mountainous can take the system to make a perennial street at no cost; it can be used to make highway signs night lights; mountain children can study up under  Ball screw support bearing  a fluorescent lamp; high-rise roof wind motor city also available, which will not only save but the real green Power. Domestic wind turbines, not only can prevent blackouts, but also increase interest in life. In tourist areas, border, schools, military and even behind the mountains, wind turbines are becoming the people's purchasing hot spots. Radio enthusiasts use their own technology in wind power generation services for the mountain people, so that people watch television and lighting, electricity and urban synchronization, but also make their own labor to get rich.

Bearing Test Machine the measured sensor surface

Bearing Test Machine the measured sensor surface,the sensor measured surface roughness feelings through the built-sharp stylus,this the measured surface roughness of the workpiece caused by  contact angle measurement the stylus is displaced, the displacement amount sensor inductance coil inductance changes,and the measured surface roughness to generate an analog signal proportional to the output of the  mechanical spindle  phase-sensitive rectifier, which signal through after amplification and level shifting into the data acquisition system, DSP chip data acquisition digital filtering and parameter calculation, measurement results on the LCD readout can also be output on the printer, you can also communicate with the PC.

Bearing Test Machine This design makes tapered roller bearings particularly

This design makes tapered roller bearings particularly suitable for the accommodation of combined (radial and axial) loads. Most of axial load bearing capacity is determined by the contact angle α; vibration measurement greater the α angle, the higher the axial load capacity. Angle size to calculate the coefficient e; e value, the greater the contact angle, the bearing axial load greater applicability.  Hydrodynamic Bearing  Four-row cylindrical roller bearings are usually separated type, namely with roller and cage assembly components of the inner cone and cone outer (outer) installed separately. Four cylindrical roller bearings are widely used in automotive, mill, mining, metallurgy,  aviation bearing   plastics machinery and other industries. Four-row cylindrical roller bearings have tapered inner and outer ring raceways, tapered rollers are arranged between the two. All conical surface projection lines are a little get together with the bearing axis.

Rolling mill bearing raceway relative displacement

If paired installation, so that one pair of bearing outer ring relative to that wide side face of wide and narrow side sealed angular contact ball bearing facing the narrow end. This can avoid additional axial force, and the shaft or housing to limit axial clearance within the range in both directions.
Its inner and outer ring Rolling mill bearing raceway relative displacement on the horizontal axis, so it angular contact ball bearing can support radial load and axial load - combined load (single row angular contact ball bearings can withstand axial load in one direction, so often paired installation).
Cage made ​​of brass, synthetic resins, etc., depending on the bearing forms, and application conditions.
More angular contact  Cross roller bearing ball bearings are manufactured abroad bearing manufacturers, domestic applied to imported equipment such as more angular contact ball bearings 3204RS, and so on.

the gears meshing conditions should be consistent with the requirements of precision

 Changes should be noted that the noise of tower cranes in use and turning resistance moment, if irregularities should be overhauled.

slewing lifting or storage must be level, not vertical lifting or storage, in order to avoid distortion.

 fully tighten the bolts in the past, should be checked meshing gears, the gears meshing conditions should be consistent with the requirements of precision: the contact spots that slight braking gear pair at the tooth surface distribution of the latter is not running in the tooth height direction less Bearing test machine‍ than 25% in the longitudinal direction of the tooth is not less than 30%.

 tooth surface work 10 shift debris should be removed once and re-coated with grease.

To ensure the reliability of the bolt work, avoid inadequate bolt preload, the first 100 hours and 500 hours after slewing work should be separately checked pretension bolts. Then every 1000 hours of operation should be checked once pretension.

 connection slewing ring bolts and nuts high speed bearing‍ are made of high-strength bolts and nuts; double nuts and lock.

 When tightening the nut, should topcoat oil and nuts threaded end of the bolt and torque wrench should be used uniformly in the circumferential direction of symmetry repeatedly tightened. Finally, tighten again when the bolt tightening torque of each should be roughly uniform.

On the slewing ring raceway surface parts are aligned cloth 4 cup oil, thereby adding grease to the Raceway. Under normal circumstances, slewing operation 50 hours lubricated once. Every time you must add a little oil until the oil leaking from the seal so far.‍

city and district government attaches great importance .

During his meeting with vice president of Zhejiang Jianli Group赵永德, ZhangXiaoLian said on Powerlifting Group's investment in the development of Kazakhstan , city and district government attaches great importance . Harbin will take further measures to provide investors with better production and living environment and more detailed service .

When meeting with some members of the Federation of Enterprises in Heilongjiang Province, Zhejiang Province , Executive Vice President and Secretary General in the army , led by Chen , Zhang Xiao Lian said that Zhejiang has played an important role in the development and economic reform in Harbin taper roller bearing‍ construction . He hoped that operate in Kazakhstan Zhejiang Zhejiang to attract more enterprises to invest in the development of Kazakhstan. Local government will further improve the mechanism and Zhejiang and other foreign investors docking , the initiative for foreign investment services , joint development of regional economy .

According to reports, the dawn of the National Building Group is the general contractor premium quality housing construction business, currently intends to invest 1.2 billion yuan to participate in the development and construction of the Metro Hanan cottage area . Powerlifting Group is the country's largest production rotary table bearings‍ base of bearing steel . Currently planning to invest in Bayan Harbin Powerlifting Precision Machinery Manufacturing  to build a China production base of precision roller bearings , mainly construction o level , a precision roller bearing production base , China R & D center and roller bearings China roller bearing test center . The project has been included in the " Twelfth Five-Year " development plan China Bearing Bearing Association national key construction projects . Heilongjiang Province, Zhejiang enterprises in Heilongjiang Province by the Federation of production enterprises in Zhejiang province-wide voluntary organization , the main propulsion Zhejiang black economic and trade cooperation between the two places and exchanges.

the technological level of our miniature Precision Bearing have been close to international standards

According to the party's seventh session of the Fifth Plenum, we believe that next year's bearing industry will maintain stable development, which has the following favorable factors
1, a report analyzing the economic situation of the State Council Development Research Center, the research group has recently completed believes that in 2010 China's economy has been high speed bearing successful to get rid of the negative impact of the international financial crisis, began to enter the conventional growth path, price inflation stabilized, estimated  Precision Bearing annual economic growth about 10%. 2011 annual economic growth is expected to be maintained at around 9%.
2, in the "Twelfth Five-Year" period, steady and rapid development of the national economy will further promote the development of China's bearing industry;
3, this year, the rapid development of the bearing industry, but also for the steady development has laid Sealed bearing a good foundation for next year.
4, from a strong bearing exports this year, we can see through the bearing industry rapid development in recent years, the technological level of our miniature bearings have been close to international standards, coupled with continuing strong lift our market competitiveness, we have become the world's largest miniature bearings manufacturing base, as the international economic development, miniature bearings exports will grow further.

sales income margin was 5.8%, down 0.7 percentage points over the same period last year.

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 tool industry will maintain a growth rate of over 10%.
According to Wang Liming, this year the first 10 months, China's machine tool industry is facing a grim situation. Industry data provided by the National Bureau of Statistics show that wind turbine bearings industry-wide sales growth fell significantly, profits negative growth; key enterprises and associations of industrial output since the beginning of this year showed a double-digit negative growth, corporate orders and new orders in hand were sharply inventory increased significantly.
National Bureau of Statistics show that from January to October this year, the country's machine tool industry in total industrial output value of 576.67 billion yuan, up 11.1 percent; product sales value totaled 559.27 billion yuan, an increase of 10.8%, product taper roller bearing sales was 97.0%, decrease 0.3 percentage points over the previous year; investment in fixed assets totaled 14.2%, down 40.7 percentage points higher than the previous year. In the first nine months, the machine tool industry realized profits of 28.35 billion yuan, down 3.6%, sales income margin was 5.8%, down 0.7 percentage points over the same period last year.

gradually widening the gap Rolling mill bearing

Increase scientific and technological research and development efforts
Northwest bearing to the production of large, large, extra large bearing products as a basis, after many years of accumulation, reached a certain scale of production, has been listed as one of six large enterprises stalls bearing industry. The company has an bearing steel important national enterprise technology center, the National and Local Joint Engineering Laboratory, postdoctoral research station, established a technology center Rolling mill bearing at the core and relying on technological innovation system, with proprietary technologies and technical know-how a number of independent intellectual property rights. Companies "NXZ" Famous Chinese Trademark trademark brand, brand awareness and market influence in the bearing industry at a higher position. However, due to a shortage of funds in recent years, lack of technological inputs, equipment becomes obsolete influence companies to improve competitiveness and to develop high-end products "bottleneck." Compared with the same industry advanced enterprises, and gradually widening the gap, in terms of sales revenue in the industry at around 30, a larger decline.
To develop it must take the road of scientific and technological innovation, the White Pagoda petrochemical precision bearing Northwest bearing, new leadership that decided to set up specialized institutes, companies on the basis of the original oil machinery bearing Institute, the new institute was established rail bearings, twelve military equipment bearings bearing Research Institute, the Institute plans to rely on a professional, in-depth research directions for different research and development, industry and gradually mastered the core technology, optimize the product structure, and the main industry efforts to broaden the market.
2013 Northwest bearing accelerate product development and process innovation, effectively promote the oil and gas industry supporting series bearing the successful development, metro bearing loading test, the product lightweight technology upgrading, development of motor bearings.

bearings distributor in China editing, along with the development of wind turbines

bearings distributor in China editing, along with the development of wind turbines, wind power generators become the development trend of the market, and one of its main components bearing various suppliers also become the target relative to catch up.Group in order to meet this goal developed for wind turbine  Nautilus bearing tapered roller high speed bearing  pecially developed for high-power wind turbines large contact angle of tapered roller bearings Nautilus bearings.  Nautilus bearing for the back to back in the form of tapered roller bearings, with the larger the contact angle (45 °).  Nautilus bearing not only allow single bearing spindle configurations as possible, while greatly reducing the traditional design of the drive chain length so compact wind turbine designs. Of course, this design also ensures the bearing or drive all the features.
Nautilus bearing a remarkable feature is its use of a segmented plastic cage, segmented cage design, as each individual component is very small, and no intermediate links, even in the loaded state of the bearing will not affect the deformation of the shape of the cage and the rolling element guide. Also, because each component only four rolling, therefore, the holder will be generated by the friction is reduced to a minimum Bearing manufacturing machine range.  Nautilus bearings of plastic, not only to ensure adequate strength, and its lighter weight to ensure the rotation of the bearing performance, while reducing the friction in the bearing, so that the In addition, the traditional pairing (or double row) tapered roller bearings, the contact angle is generally only about 20 °, while ensuring its larger radial load capability, bearing axial load carrying capacity and the ability to withstand the overturning moment subject to certain restrictions. Bearing break through the traditional design of the contact angle, the contact angle of each single bearing enlarged to 45 °, in the bearing radial load capacity of the premise, greatly strengthened the axial load bearing capacity, while,  Bearings can also withstand large overturning moment. Configuration of the conventional double bearing comparison,  Nautilus bearing load is applied to two lines of intersection of the center line from the axis is much longer than the general configuration of tapered roller bearings, these two points of intersection on a point of the support shaft runs. But also to adjust the bearing preload condition to optimize the rigidity of the system.

classic booth design, Bearing Test Machine top-notch products

Bearing Sales Center news, May 2, 2010, the 11th Beijing International Automotive Exhibition is the industry as "by far the world's biggest auto show next successfully concluded in the 10-day show, with "Imagine a Green Future" as the theme, demonstrating people, vehicles and nature live in harmony ideal screen to provide quality display platform for our brand of green innovation and as the world's top automotive parts Slewing bearings conglomerate bearing company, the first portrait exhibition the 11th Beijing International Automotive Exhibition. classic booth design, top-notch products, professional technical explanation, demonstrated a endless pursuit of high-quality products, and excellent staff professionalism, attracted many domestic and foreign automobile manufacturers attention.
Auto Show as China's largest auto show, but with the development of China's automobile market is becoming increasingly important, especially in the financial crisis, China's auto market thriving, like the desert among a pool of water, which attracted all the world's rotary table bearing  cars internationally renowned manufacturers and parts manufacturers in the eye, auto parts suppliers such as: attended this show. As the world's top automotive parts-scale integrated enterprise, which prides itself on high-quality products bearing the world's automotive products in the world's leading bearing distributor in China has and will continue to provide cheap and quality auto parts to China and the world's car manufacturers . After Beijing auto show experience with baptism, will continue to achieve a safe, comfortable and environment-friendly cars to boost social and development and make greater contributions to the automotive industry

Bearing Test Machine this year's major development tasks.

 This year, affected by the intense turbulence in international financial markets, the slow growth of the world economy, global macroeconomic market decline, China's construction machinery industry also generally saw a decline trend, domestic Bearing Test Machine demand fell sharply. Faced with the grim economic situation Jie Heng Ltd. slewing customer demand for the guide, to take proactive measures to deal high precision bearings with the crisis situation affecting the industry, on one hand, to increase the stability of innovation in production technology, ensuring that products manufactured pieces each set full market high standards to the superiority of quality and consolidate new and old customer base, expand market share, at the same time, enhance the brand, advanced production technology, are Bearing life testing machine this year's major development tasks.
     On the other hand, in the face of weak domestic market, the company actively develop, explore the international market, through participation in international fairs, network promotion Bearing Test Machine showing the overall strength of the company, to further cultivate and expand overseas markets, increasing sales performance, gave us fully affirmed.
     JieHeng slewing growing and upgrading in development, Heng Jie who is bound with unprecedented enthusiasm and passion, as always, customer demand as the goal and users work and sincere cooperation, shared values​​, work together to create a better tomorrow!

Bearing Test Machine for mechanical requirements match

Because of their Bearing Test Machine or less, thus requiring its mating parts have a high dimensional accuracy and shape accuracy, especially with the surface to be controlled with precision bearing the same horizontal, which is crucial, but also the most easily overlooked.
Attention must also match the mechanical precision bearings if not meet the above requirements, often makes precision bearings error occurs several times larger than the original high speed bearing after installation, or even 10 times more errors, totally not become a precision bearings, because the match machine member is often not the error is superimposed on the bearing simply error, but in the type of amplification with multiple go.
2. Precision bearings with
In order to ensure the super-precision bearing after installation without excessive deformation must do:
(1) shaft and housing bore roundness and a shoulder block to the verticality of precision bearings according to the respective requirements.
(2) it is necessary to accurately calculate the amount of interference with the rotation of the ring, but also accurately calculate the appropriate amount of fixed rings.
Rotating rings blanch the extent possible, the amount of interference should also get smaller. As long as the effects of thermal expansion and ensure the operating temperature, and the maximum speed under the influence of centrifugal force, so as not to cause a tight fit creeping or sliding surfaces. Fixed according to the work load of the size of the ring and bearing size, select a very small clearance fit or interference fit, too loose or too tight is not conducive to maintaining the exact original shape.

The Bearing Test Machine product not only be able to meet the functional requirements

The event featured a five forklift products, including forklift trucks, especially the second generation by the attention. According to the needs of overseas customers for product appearance and configuration, FD30 second-generation products based on the generation of products on the feasibility of a lot of improvement, and has successfully passed the market test. The product not only be able to meet the functional taper roller bearing requirements, and environmental protection, humane, reliability and maintainability, and many other innovations, early in the design a lot of market research on the body structure, floor and dashboard structure, Mast tilt cylinder structure, control and balance the weight of the structure have been humane improvement in the body to improve heat dissipation, operating horizons expand and enhance the effective sealing body, the concept of "people-oriented" design ideas, and generation of vehicles with than overseas customers Slewing bearings  get more pro-gaze. Other models on display four products are covered by a forklift, battery forklift, electric forklift trucks, electric pallet trucks four categories, providing customers with a full range from logistics to warehousing solutions.
Forklift galleries, classic shiny, concept development has attracted many people stop, exhibition warm and friendly staff and Exhibition personnel exchanges and consultations, concept development staff shortage admiring overseas customers, they Chery forklift Dikai said he was satisfied with the product, hope to establish stable and cooperative relations, international development Chery Dikai forklift confident cooperation between the two is also full of expectations.

Precision Bearing business executives conducted in-depth discussion

 Development and Reform Commission deputy director of Song Yuan led by comrade coming clean about the research department bearing industry development. Vice Mayor Wang Lei, Municipal Development and Reform Secretary Zhang Fan, deputy director of the school, Peng Luan and relevant departments comrades smoke Zhen People's Congress Tian Yinghui, accompanied activities.
Song Yuan Zhen Rui and his entourage came to smoke the new bearings, Yu Jie bearings, bearing market ZYS Precision Bearings conduct field research, and business executives conducted in-depth discussion, learn more about the company's current production and operation difficulties and problems facing the industrial upgrading.
He pointed out the need to increase efforts to support the bearing industry, industrial development environment to create a more superior than the surrounding counties to better bigger and stronger bearings industry. Meanwhile, he encouraged the bearing enterprises to actively absorb advanced experience of domestic first-class Cross roller bearing enterprises to continuously improve their overall competitiveness, trying to do the bearing industry benchmark companies.
In the bearing market, Song Yuan briefed on the bearing market developments, and visited a number of businesses, a detailed understanding of the operation of businesses. He expressed appreciation for the rapid development of the smoke Zhen bearing market, and the continued development of the market is very concerned about the bearing. He pointed out that the smoke shop bearing market as the country's largest bearing market, out of a market-driven process successful way. Future should make greater efforts in improving market facilities, development of e-commerce and logistics, warehousing, etc., trying to make this card Linqing industry at home and abroad called louder.

Bearing Test Machine which have a more positive impact for the smooth bearing steel market.

Currently the demand for high-end bearings are now substantial growth, such as a ball screw support with precision angular contact ball bearings, aerospace bearings, precision bearings for machine tools photovoltaic industry, high-speed spindle bearings, turntable bearings, wind power bearings, rolling bearings, bearing high-speed rail , automotive Angular contact ball bearing  bearings, crane sheave bearings, turbocharger bBearing Test Machine, hydrodynamic bearings. Our bearing forging industry developed rapidly, which have a more positive impact for the smooth bearing steel market.
Bearing is a kind of modern machinery and equipment vital components. Its main function is to support the mechanical rotary member, the drive device for reducing the mechanical load during the friction coefficient. Rolling bearings and sliding Bearing Test Machine  can be divided into two categories.
After the founding of new China, a strong push in the reform and opening up, the bearing industry has entered a new period of rapid development of high quality, has achieved a small to large, from weak to strong development strategy, the formation of the layout is reasonable, medium and small Enterprise coexist relatively complete product of relatively complete industrial system.
Now, with the national attention, and bearing trend on the domestic equipment manufacturing industry has become increasingly evident that China bearing market will usher in a broader space for development.

Bearing Test Machine two sessions related to economic growth targets

　Proposed two sessions related to economic growth targets, infrastructure around the city began to actively start including road, rail, water, ports, airports and other major urban projects. Carry out large-scale projects, so that the entire domestic construction machinery industry to recover, demand for construction machinery relatively strong, while increasing market demand for bearing a certain extent.
Bearing rising production plan
From the data, the current domestic marine ships, automobiles, oil pipelines and so on industry production plans bearings for printing machine to maintain a certain stability. And bearing a slight increase in construction machinery industry production plans. With the recovery of the construction machinery industry will contribute significantly to the demand for bearings, bearing industry will develop further. Most of the bearing steel enterprises to maintain good sales in March, sales growth could help stabilize the entire bearing steel market, promote the rapid surface profile measurement development of bearing steel companies.
Growth in demand for high-end bearings
The current stable development of China's bearing manufacturing industry, market demand for high-end bearing is growing, such as machine tool bearings, aerospace bearings, high-speed precision bearings, wind power bearings, rolling bearings, high-speed rail bearings, turbocharger bearings, and so on.

Bearing Test Machine to explore the international market and domestic high-end market.

Currently, the bearing industry has shown a trend of internationalization of domestic competition. Nearly 80 percent of the world bearing market is split bearings eight foreign giants, of which 40% share from the Chinese market, mostly for high-end products. Not only that, but also to increase investment in the world bearing the giant forward China's low-end market expansion; while domestic companies manufacture products fatigue testing machine 90% of the low-end products, squeeze traditional markets through price competition. Under the pressure of the squeeze,  urgent need to find a new market space.
Reduce the opportunity cost of the predicament in demand
Since the economic downturn, cost reduction became the needs of all businesses. Domestic enterprises to break high precision bearing through a host of foreign barriers, reduce costs and improve competitiveness, the demand for high-end products to replace imports increased significantly; equally to reduce costs, foreign companies and therefore increase the amount of purchases in China. To seize this opportunity, ZWZ to cultivate new growth points in the high-end bearings breakthrough, a breakthrough on the international market, the adjustment of product structure, the development of high-end products, to explore the international market and domestic high-end market.

extra large Bearing Test Machine products as a basis

Increase scientific and technological research and development efforts
Northwest bearing to the production of large , large, extra large bearing products as a basis , after many years of accumulation, reached a certain scale of production, has been listed as one of six large enterprises stalls bearing industry . The company has an important national enterprise technology center , the National and Local Joint Thin section bearing  Engineering Laboratory , postdoctoral research station, established a technology center at the core and relying on technological innovation system , with proprietary technologies and technical know-how a number of independent intellectual property rights. Companies  Famous Chinese Trademark trademark brand , brand awareness and market influence in the Rolling mill bearings industry at a higher position. However, due to a shortage of funds in recent years , lack of technological inputs , equipment becomes obsolete influence companies to improve competitiveness and to develop high-end products "bottleneck ." Compared with the same industry advanced enterprises , and gradually widening the gap , in terms of sales revenue in the industry at around 30 , a larger decline .

ZYS Precision Bearing Strengthen research and education bearing imminent

so far the school has a national bearing industry has trained nearly 2,000 undergraduate and graduate students . The vast majority of these students have become the backbone of the bearing industry technology , Henan University of Science and Technology has been Precision Bearings hailed as " China 's bearing industry Whampoa Military Academy" insiders . However, the school offers professional bearing more than 60 graduates per year only , can not meet the needs of the country thousands of bearing plant.
Strengthen research and education bearing imminent
Japanese bearings giant wheel bearing  its headquarters staff as much as 1800 R & D , which is China bearing counterparts dare not imagine. In many outsiders view, is a kind of simple structure bearing components , it is necessary with so many researchers do ? In fact, we see in everyday life bearings are low -tech low-end bearings , and bearing high degree of technical complexity is low-end bearing can not be compared .
Chinese Academy of Engineering Bingheng believe that high-end research and development related to the bearing material , and lubricating oils , manufacturing , design, bearing manufacturing equipment , testing and other tests a series of technical problems , but also contact mechanics , lubrication theory , tribology , fatigue and damage, heat treatment and organizations and other basic materials research and interdisciplinary .

Rolling mill bearing Carry out large-scale projects

Proposed two sessions related to economic growth targets , infrastructure around the city began to actively start including road , rail, water , ports, airports and other major urban projects . Carry out large-scale projects , so that the entire domestic construction machinery industry to recover, demand for construction machinery relatively strong , while increasing market demand for bearing a certain extent .
From the data , the current domestic marine ships, automobiles , oil pipelines and so on industry production Rolling mill bearing plans to maintain a certain stability. And bearing a slight increase in construction machinery industry production plans. With the recovery of the construction machinery industry will contribute significantly to the demand for bearings , bearing industry will develop further. Most of the Bearing manufacturing machine bearing steel enterprises to maintain good sales in March , sales growth could help stabilize the entire bearing steel market , promote the rapid development of bearing steel companies.
The current stable development of China's bearing manufacturing industry , market demand for high-end bearing is growing, such as machine tool bearings , aerospace bearings, high-speed precision bearings, wind power bearings, rolling bearings , high-speed rail bearings, turbocharger bearings , and so on .

promote the formation of the wind power Bearing Test Machine industry development and industry chain

To shorten the gap between the world powers bearings , bearing manufacturing to improve our manufacturing level , the Chinese government has issued a series of industrial policies to support and encourage domestic enterprises towards the end bearing bearing localization direction. "Long-term Science and Technology Development Plan (2006 - 2020 ) " should be made to focus on the development of major equipment required for the design of key basic parts and components , manufacturing and key technologies Precision bearing for mass production . China's " bearing industry," second five "development plan" put forward , "Twelve Five" period, the bearing industry 's main business grew 11.84 percent average annual production average annual growth of 13.30% , industry profits grew 13.90 percent average annual total goals. This reflects the country fully affirmed the important status and role of the clutch bearings  ndustry in the national economy , as well as support for the development of industrial bearings , bearings for the healthy development of the industry provides a good opportunity for development .
According to Mr. Li Shuming Northwest bearing , general manager of introduction, Northwest Bearing developed "2.5MW wind power generation equipment spindle bearings " project, designed to meet the requirements of the user MWT-2500A (2.5MW) direct drive wind turbines. Can not only improve the company's own income , but also effectively promote the local wind power equipment, downstream industrial agglomeration and development in Ningxia , and promote the formation of the wind power industry development and industry chain   has far-reaching implications for Ningxia industrial restructuring, transformation of economic growth mode ; company developed the " heavy-duty vehicle nose cone bearing " project, in addition to improving the company's revenue , but also by dump truck with a nose cone bearing development, open -highway heavy-duty dump truck bearings supporting the localization market

Precision Bearing Industry believes that a complete research system

Bearing accelerate product development and process innovation, effectively supporting the oil and gas industry to promote the successful development series bearings , bearing subway loading test, the product lightweight technology upgrading, development of motor bearings . Companies large special bearings advanced manufacturing technology wind turbine bearings Joint National Engineering Laboratory where the relevant departments have been approved , will further enhance the company 's R & D capabilities . Meanwhile, the company won two secret military field qualifications, passed the state weaponry research and production licenses on-site Precision bearing assessment and weaponry GJB9001B-2009 quality management system certification second phase of the initial audit . 2013 Northwest bearing R & D expenditure amounted to 22,432,000 yuan , accounting for the company's net assets was 8.1% , accounting for the proportion of operating revenue was 6.9 %. Industry believes that a complete research system , active R & D investment , experimental methods , such as high levels of the company to provide a strong guarantee for the development of high-end bearings

stimulating demand for construction machinery

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 , bearings 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, Precision bearing industry increased. Downstream industry demand for effective bearing steel increased compared with February . For example Gcr15 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 roller bearings 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.

double row and four row circular cone roller bearings

Tapered roller bearing mainly bear radial primarily diameter, the axial load. Bearing capacity depends on the Angle of the outer ring raceway, the greater the Angle, the greater the carrying capacity. The separated type bearing is a bearing, according to the wind turbine bearings  the number of columns of the scroll body can be divided into single row, double row and four row circular cone roller bearings. Single row tapered roller bearing clearance to users in the installation adjustment; Double row and four row circular cone roller bearings clearance has according to user requirements for a given when the products leave the factory, not the user.
Have a conical taper roller bearing inner ring and outer ring raceway, the tapered roller are arranged in between. All projection line on the surface of the cone axis high precision bearing  the same points together. This design make the taper roller bearing is especially suitable for composite (radial and axial load. Bearing axial load capacity is mostly determined by the contact Angle alpha; Alpha Angle is larger, the higher axial load capacity. Angle size by calculating coefficient of e; E value, the greater the contact Angle, the greater the bearing axial load of the greater applicability.

This load is Bearing Test Machine characterized by a relatively static radial load vectors and synthesis loop

Synthesis of radial load on the fixed load of the load from the local fixed ring raceway ring is exposed and sent to the appropriate local or bearing shaft . This load is characterized by a relatively static radial load vectors and synthesis loop . Bear the load ring , you can use a relatively relaxed. Synthetic <BR> rotational load of radial load applied to the full complement cylindrical roller along the circumferential Bearing manufacturer direction of the rotating bearing ring on the roller , turn the various parts , such as the rotation load , which is determined by the combined vector phase loop radial load rotation, bear . Work closely with the rotating load ring , in exceptional circumstances , load, if elected , is light or heavy loads , low speeds , and only occasionally rings , bearings hard materials and high slewing bearing surface roughness , rotating load bearing rings can also be used more loosely . Third load swing directional load or no load , the load ring radial direction of the uncertainties of the load, which is characterized by a ring raceway radial load vectors role of an impact load in a certain area , vibration, load , and its direction is the swing roller to bear a certain area , or acting on the bearing load , load values ​​change frequently . To bear the load swing , outer ring and weeks , bearings, holes should close conjunction. <BR> Used to adjust the full complement cylindrical roller bearings radial clearance as follows : <BR> 1, for cylindrical and oval-shaped bearing backlash

ZYS Slewing bearing Internal factors mainly refers to the structural design,

Indeed , in the ideal prerequisite called permanent  ZYS Precision Bearings  life is possible. Factors affecting bearing life there are many factors that can be divided into use and internal factors . The main factor is the use of installation and adjustment , use and maintenance , repair and other maintenance meets the technical requirements. Installation conditions is one of the primary factors in the use of factors , caused by improper installation of the entire  rotary table bearing  force between the various parts of the state change, bearing in operation under abnormal state , and early termination of life. Internal factors mainly refers to the structural design, quality manufacturing processes and materials , such as the three factors that determine the quality of the bearing . Bearing manufacturing generally through multi -channel processing . The reasonableness of the processing technology , advanced, will also affect the stability of the bearing life . Which affect the quality of the finished cylindrical roller bearings heat treatment and grinding processes, and the failure of the bearing has a more direct relationship

Precision Bearing Because the former leads to the failure of both sides working conditions are similar

If you hear noise emitted by imported parts , first of all, it is important to find the location of the noise occurs . There are many moving parts may produce noise , and some may not rotate the rotation member and the contact member occurs . If the confirmation is four  Slewing bearings  noise , may be damaged and need replacing.  2. Because the former leads to the failure of both sides working conditions are similar , so even just a bad one , it is recommended to replace in pairs . 3. Relatively sensitive to imports, in any case need to adopt the taper roller bearing right approach and the right tools. In storage and during installation , the bearing parts can not be damaged. Require greater pressure pushed , so they need special tools. Be sure to refer to the manual . 4. Installation should be clean and tidy environment, will shorten the tiny particles into the four -row cylindrical roller bearing life. Maintaining a clean environment when replacement is important. Allowed to tap with a hammer , be careful not to fall to the ground ( or similar misconduct ) . Before installation of the shaft and housing should also check condition , even a slight wear will lead to poor fit , thereby causing damage.  Metallurgical quality imported bearing materials was the main factor in the impact of early bearing failure . With metallurgical technology ( such as bearing steel vacuum degassing, etc. ) 

ZYS taper roller bearing assembly and the contact surface must be clean .

( 1 ) Maintenance Technical slewing crane mounted holder must have sufficient rigidity , the mounting surface should be smooth . Slewing bearing assembly prior to the stress should be treated to reduce maintenance crane slewing bearing deformation. Slewing bearing assembly and the contact surface must be clean .

( 2 ) the use of crane maintenance techniques should be noted that the noise changes and changes in rotation ZYS aviation bearing sistance moment , crane maintenance , if any irregularities should be overhauled .

( 3 ) Maintenance Technical slewing tower crane must lift or store level , not vertical lifting crane maintenance or storage, in order to avoid distortion.

( 4 ) maintenance crane technology in the bolt is fully tightened before the crane inspection and maintenance ZYS Bearing life testing machine techniques should be meshing gears , the gears meshing conditions should be consistent with the requirements of precision : the crane maintenance techniques that gear pair operating at a slight braking surface of the lower teeth the distribution of the contact spot on the tooth height direction of not less than 25% , crane maintenance technology in the longitudinal direction of the tooth is not less than 30%.

ZYS Precision Bearing will establish a college practice base for selection

Changshu Bearings :  established university students practice base in Changshu
      Last October,  ZYS Angular contact ball bearing ., Ltd. Changshu To contribute to the community in Changshu Institute of Technology Changshu  established a scholarship to help and support outstanding poor students complete their studies, poor students and companies and institutions of higher learning to another level of cooperation this year, Changshu  will establish a college practice base for selection, reserve more outstanding professional and technical personnel services in  Chinese companies.

      ZYS Precision Bearing  and Changshu Changshu Institute of Technology School of Foreign Languages ​​Secretary Jiang , Guyuan Zhang and other talks .  Bearing Co., Ltd. Changshu Fan , vice president at the meeting detailing the company's specific plans and arrangements for implementation of the plan and fully affirmed the practice of college students in the practice of the company's performance . And will pick three internships in the company from 2010 graduates , the experts as the company's Japanese translation work . Foreign Language College Secretary Jiang ,trip is focused on understanding the hospital intern in the Japanese practice of corporate social . After the Foreign Languages ​​Institute Secretary Jiang ,and his party in the total range of guided tour of its new production line in Fukushima , and the practice of students in the company's office classrooms.

set up R & D base in Shanghai plans to work with local auto companies

 plans to set up R & D base in Shanghai
      China Shanghai  Bearing Corporation , November 6 , many bearing well-known foreign companies, like ,  and so began to increase investment in China, as Japan's second-largest brand ZYS taper roller bearings  Company is no exception. increase investment in China , speed the pace of progress . We learned from the Shanghai bearings , Japan in 2011, the company plans to build outside of Japan 's largest research and development base in Shanghai .
set up R & D base in Shanghai is expected to reach 1 billion yen investment will employ about 200 local technicians , set up R & D base in Shanghai plans to work with local auto companies , universities , to develop products suited to market needs. company will cooperate with Shanghai Jiaotong University to enhance research and development capabilities . Mainly to introduce pre- trial set for automotive parts mainly conducted to zys taper roller bearing evaluate the local investment product testing and scale development . The latter will tend railroad , farming machinery , wind turbines and other machinery, test equipment, and the timely adjustment of investment system .

ZYS Precision Bearing competitors the situation and development strategy

Recently, the National Development and Reform Commission ( China's National Reform and Development Commission ) , deputy director of the Foreign Investment Department Mayor Wang line in Kunshan Huaqiao tube came accompanied by patriotic Chinese headquarters for a tour and visit .

      Wang first visited ZYS taper roller bearings China showrooms, China headquarters Investments Limited Deputy General Manager Tan Dylan to briefly introduce the company's main products and business profiles, exhibition hall exhibits a rich variety of tips to attract visitors who often stop to watch .

     Deputy General Manager of China headquarters Tan further briefed the headquarters in China - Investment Limited and Milestones in China. They said the Chinese sales , number ZYS Angular contact ball bearing of employees , competitors, the situation and development strategy , the guests certainly a good environment and quality services in Kunshan Huaqiao Economic Development Zone, at the same time provide enterprises , the establishment of regional headquarters in Huaqiao choice and expressed appreciation for t

The ZYS ball bearing use of the surface layer of the metal melting and re- solidification

The use of the surface layer of the metal melting and re- solidification , to give the desired composition of the surface hardening treatment or tissue enhancement technique called surface metallurgy . Including the surface from the insoluble alloy or composite powder coatings, crystalline or amorphous surface melting , surface alloying methods. Deep groove ball bearing is characterized by rapid heating to a high energy density , the surface of the metal layer or metal coating on the surface of the alloying material is melted and then solidified by cooling to obtain their particular Bearing life testing machine structure or particular properties of the reinforcing layer . This particular structure is perhaps the crystal structure refinement , or maybe supersaturated phase , metastable phase , even non- crystal structure , depending on the process parameters and methods of surface metallurgy . Rolling industry in miniature bearing surface enhanced laser heating has done research to good effect.
Application of physical or chemical methods , the coating on the metal surface bearing a different material properties of the matrix to strengthen the film , the film referred to as surface railway bearing hardening. It includes electroplating , electroless plating ( chrome, nickel, copper, silver , etc. ) as well as composite plating, brush or transformation processing , including in recent years, the rapid development of high-tech : as CVD, PVD, P-CVD , etc. vapor deposition and ion implantation method to strengthen the film surface enhancement technology ( also known as atomic metallurgy ) and so on. Their common feature is the film can form specific performance in the work surface to enhance the wear resistance of the surface resistance, fatigue resistance, corrosion resistance and self-lubricating properties. Such as ion implantation technology to strengthen the deep groove ball bearing surface , enabling the bearing surface wear , corrosion resistance, and resistance to contact fatigue performance have been significantly improved , so that the service life of bearings KOYO grow exponentially .

New wheel Precision Bearing working principle and structure:

New wheel bearings working principle and structure:
 New Wheel Hub Bearing  works: when the car in case of low and medium-speed, high-resolution signal can be 40 times the original wheel speed detection accuracy. Can be detected by standard vehicle only 1mm movement, control of the vehicle when the best time to be  able to control the braking force. In the ABS control for the main ZYS taper roller bearings purpose of the high speeds, the use of low-resolution signals to reduce the burden of data processing. Development of products high resolution signal output A-phase and B-phase two kinds of pulses, these pulses output by observing the situation, be able to detect the vehicle is ZYS Angular contact ball bearing moving forward or backward. This can be used to detect whether the start ramp and automatic slip car parking and so on. Wheel speed sensor using a sensor (fixed side) detected at the same intervals on the circumferential direction are alternately magnetized  pole and the S pole magnetic encoder (rotation side) of the magnetic pole changes, as the wheel rotation signal for vehicle control. Reduced rotation signal, which is to improve the resolution, will be able to more finely control the vehicle.
 New Wheel Hub Bearing structure:and  using the original magnetic encoder developed a resolution of up to 40 times the original magnetic sensor, and in 2007 developed the magnetic sensors embedded in the "rotation sensor with high resolution hub bearing" . Since high resolution and high speed data processing burden, thus switching the resolution added functionality.

wear resistance, elastic limit has a direct impact.

Hardness is an important quality cylindrical roller bearings quality of contact fatigue strength , wear resistance, elastic limit has a direct impact. Cylindrical roller bearings use steel in general to reach a state of hardness HRC61 ~ 65, in order to make contact with koyo bearings get higher fatigue strength and wear resistance.
Manufacture of nylon 46 cage , reducing the ball and keep the sliding friction between the rack . Also, the rotational direction to eliminate the uneven shape , thereby reducing the ZYS taper roller bearings agitation loss . Further, the shape of the stress can be used to slow the time of assembly to ensure the performance of the assembly . The loss of a single cage 30 to reduce the torque of 40% , cylindrical roller bearings reduce torque loss of the overall 50 to 65% . The company speculated that the Prius will be 10 models and 15 mode fuel efficiency from the ZYS Precision Bearing previous 35.5km / L increased to 38.0km / L, improved fuel efficiency of about 1-2% is obtained through the use of such bearings .
koyo bearing parts in the production process , to go through a lot of cold , heat processing procedures , in order to meet the high-volume , high efficiency, high quality requirements , cylindrical roller bearing steel should have good processing performance. For example , hot and cold formability, machinability , hardenability and so on.

Tune concentric with the bearing dimension series varies

Tune concentric with the bearing dimension series varies , generally allow aligning angle is 1 to 2.5 degrees , the larger the load bearing capacity of this type , in addition to radial sealed angular contact ball bearing load bearing can withstand the effects of a two-way axial load , has good impact resistance , in general, low self-aligning roller bearings operating speed allowed .

 City is China's largest spherical roller production bases , one son , now a production capacity of 1.5 million Bearing life testing machine sets of the above , the production range :21304 ,22205 -22,264 -21,320 -22,364 ,22308 ,23120 ,23022 -23,064 -23,264 -23,164 ,23218 ,24022 -24,064 -24,164 ,24128 , cage has CA, MB, MA, CC,  five kinds ; straight holes and the inner cone (K) two kinds ; outer ring ( Tanker ), ( with stopper groove ) two; there are various clearance standards to meet customer needs ; tolerance levels are two kinds.

    After years of development and accumulation , the company is strong in technology , product quality and excellence, by domestic and foreign customers in the domestic market , covering over 30 provinces, municipalities and autonomous regions , as power machinery , mining machinery, textile machinery, engineering machinery and automobile industries, providing supporting services.

    Extend its high-tech products with a long inner spherical roller bearings, spherical roller thrust bearings, spherical roller bearings seals , vibrating screen bearings ; while the company also manufactures bearings, rolling mill bearings, cylindrical roller bearings, taper roller Bearings .