Special combination bearings of machine turntable

Turntable bearing CNC machine tools and machining centers as an important component parts, its performance directly affects the positioning accuracy and machining accuracy of the workpiece, the bearing structure of complex, high-tech and difficult process, ZYS an earlier successful development of such high-precision bearings products in the domestic manufacturers.

Turntable bearing has two types, one is thrust / radial bearings that single row cylindrical roller bearings and thrust cylindrical roller bearing. The other is a two-way angular contact thrust ball bearing . Currently, sealed angular contact ball bearing the turntable bearing rotary table machine, indexing plate, etc. are basically used axial / radial bearings.

Wazhou wind power spindle bearing testing machine Chinese Patent Excellence Award

Recently, the State Intellectual Property Office and the WIPO jointly held the 16th China Patent Awards announced in Beijing, surface profile measurement ZWZ wind power spindle bearing testing machine technology by China Patent Excellence Award. This means that the market value of this technique has been nationally recognized.

According to the Institute of wind power bearing ZWZ engineering and technical personnel Lin Tian introduced WBGC wind power spindle bearing testing machine first of its kind in the country. As the domestic wind turbine supporting spindle bearings imported products, roughness measuring instrument ,domestic enterprises that type of bearing bearing design, manufacturing technology is relatively backward, especially the lack of independent testing machine is a major bottleneck.

In recent years, ZWZ spindle bearings through the development of wind turbine test methods and platforms to build fan support spindle bearing test platform and testing standards and testing procedures, and ensure that all domestic fans supporting bearing reached the international advanced level. Wafangdian Bearing Group has been successful for Guangdong Mingyang, sealed angular contact ball bearing , VESTAS and other customers at home and abroad to provide 1.5 MW, 2 MW, 2.5 MW and 3.0 MW wind turbine supporting spindle bearings.

Part of the high-precision bearings need to rely on imports secret

Although in recent years, international competitiveness of products has improved, but are mostly concentrated in the middle and low areas, such as low-value-added products, Rolling mill bearing ,some high-precision bearings need confidential dependence on imports, especially high-end precision bearings still need to import. Case in precision machine tool spindle bearings, spindle bearings as the basis for machine tool accessories bearing, its performance directly affects the speed of the machine, rotary precision,super-precision bearing ,rigidity, anti-chatter vibration cutting, noise, temperature and thermal deformation, thereby affecting accuracy, surface quality machined parts.

For CNC machine tools, machining centers and other high-speed, high-precision machine tool spindle bearing, you need to choose P4 and above grade ultra precision bearings. With the rapid development of numerical control technology, complex, high-speed, intelligent, sophisticated,sealed angular contact ball bearing ,environmental protection has become a major trend in today's machine tool industry technology development.

ZYS high speed precision bearing

High-speed precision bearings as Luoyang Bearing Science Technology Co., Ltd., one of the pillars of products,Rolling mill bearing has been formed to precision machine tool spindle bearings, rolling screw bearings, turntable bearings, high-speed spindle bearings, high-speed woodworking machinery bearings, bearing the printed circuit board dedicated high-speed drilling and milling machine and marine turbocharger bearings as the leading products bearing production system.

Structure type ZYS production of high precision bearings angular contact ball bearings, including ceramic ball bearings; single, double row cylindrical roller bearings; deep groove ball bearing; three, four-point contact ball bearings; angular contact thrust ball bearing; rolling screw special ball bearings, tapered roller bearings, thrust / radial bearings and other types of bearings.

Schaeffler Group grace supported debt

         FAG angular contact ball bearing distributor in China Analysis: Schaeffler Group during the financial crisis of this period, due to the acquisition of Continental wrong decisions, resulting in the family business to become a victim of the financial crisis. We learned from the headquarters in Germany FAG Bearing test machine  Schaeffler Group, who is currently the Schaeffler Group's creditor banks to give loans for debt can relax its duration, but can also Schaeffler Group (fag) within a specified period in the last few days for the six-month bridge loan of five hundred million euros.

        Although Schaeffler Group can breathe, but the Schaeffler Group's debt owed ​​to banks has reached 12 billion euros, a single monthly interest payments as high as 70 million euros, which is the whole group a devastating impact on the performance of . It is said that the reason given Schaeffler Group creditor banks repay the grace period is to preserve the Schaeffler family last little face. Banks believe that a workable debt restructuring plan is essential anyway. As for the Schaeffler Group and Continental tire company should be separated or how to separate is being weighed by creditor banks, whether because of their merger synergies and cost savings are always questionable.

        Currently, the Group is now an urgent need 6 billion euros of funds used to repay bank debt and supplement liquidity, or pledged to the creditor banks Schaeffler family's stake may be lost, causing the family to lose control of the entire group. Not long ago, the Schaeffler Group has formally apply to the state aid, but so far still no below.

has to prevent metal corrosion lubricant effect

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

1 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.

2 in the rolling Bearing test machine 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.

3 has to prevent metal corrosion lubricant effect.

4 lubricated with grease, you can prevent external dust and other foreign matter from entering the bearing, and sealing effect.

5 to extend the fatigue life of bearings.

And general comparison

 FAG bearing manufacturer based train control system box and generator sensor bearing (GSB) ( as an independent power source ) combined well , for example, truck , FAG 's electronics engineers , are integrated into the software to learn GSB , so formation of a vehicle unit . Coupled with the information processing system , route operators and railway companies can achieve enhanced security and ease of maneuverability truck . GSB in the number of different signals are recorded and transmitted to the central processor . Complete data ( based on train system ) contains train schedules , route , schedule and risk analysis , location, residence time , and the associated temporary variable part .
 
       And general comparison , FAG GSB in axle by rotational movement of electrical induction magnet . This force is the typical power , 100w 24v .. so just have a separate , self-contained power source, the power storage unit , an increase of more features, such as automatic door, detection switches and sensors. To train control system , FAG Group with a sophisticated electronic system into a so-called commercial -vehicle unit and connecting with senior management information systems. Such signal processing , not only records the FAG bearings , but is also transmitted GPS satellite technology.
 
      In the past, such as a car unit, which is unwilling to be able to achieve in the freight train . Information and data , it is best to use satellite technology supply , can only be an independent , self-sufficient energy supply systems . "This should be grateful for FAG Group invention Generator Sensor Bearing test machine , via satellite communications has opened up new possibilities for optimizing logistics and freight transport , and to improve traffic safety ," Bernd , FAG electromechanical systems commander said. Sensor integrated in the bearing not only record data about the conditions of axle bearing itself, such as wear or overheating also recorded .

Great innovation

Generator Sensor Precision bearing FAG determining and monitoring features, speed, temperature , mileage and noise , so that conclusions about the condition of the wheels , bogies and even railway track . This means that a good combination of the two can . Evaluation of data records is also the rotating Bearing test machine and optimize the entire transport and cargo flow and trucks available space control , positioning, tracking and calculating utilization costs , considering the loads, the number of axes , time and distance .
 
      Great innovation , transport and logistics is self-sufficient in energy production by connecting the motor bearings and FAG send sensor data sensor and the respective vehicle units and high-level information form the new control system . FAG train control system is in proximity to rail guidance system is an important step , is currently undergoing preliminary testing and Finnish track. In addition to GPS data acquisition. In other words, individual transport vehicle localization, the entire logistics chain review - transporting goods through satellite tracking , this knowledge , the current way to make optimal use of the scheduling and container freight vehicles .

      Germany FAG Bearing Group not only provide you with quality FAG bearings, can also provide you with the module inheritance, measurement technology, power transmission and control , as well as internally developed computer program enables our engineers to direct a global user-oriented design full transmission system and the required bearing support program . Chinese distributor FAG FAG Bearings you are welcome to inquire the price .

NSK planned to expand production and sales in China

       NSK Bearing test machine distributor in China, according to official reports, bearing brand in Japan, as the Japanese avant-NSK Bearing NSK Ltd. (NSK LTD.) Recently decided to expand production and sales business in China to meet its development needs in the Chinese market.

       NSK To keep up with the pace of China's rapid economic growth, with local staff as the center is developing a new strategy - to 2016 NSK sales in China will be doubled. NSK has plans to expand production and sales plans in China are as follows:
      1 January next year, the Japanese Seiko NSK heavy industry base in northeast Shenyang, Shenyang NSK Bearings new factory started production, also plans to increase investment and equipment, so that production capacity doubled.
      2.2012 operation began in August Hefei new plant to increase investment in equipment, NSK Bearings sales center in Hefei inland plant capacity enhancement in the supply Chinese customers, but also to consider the Japanese automobile manufacturers to provide bearings.
      3 Seiko will be located in the existing coastal and southern China 18 sales outlets, based on additional sales turnover in the inland area stores, plans 2 to 30 years after the marketing point.

       NSK current medium-term plan is to make the Chinese business year 2012 reached 100 billion yen (8,000,000,000 yuan). However, according to the company the current development momentum, we have achieved one year ahead may be. And, with the rapid growth of the Chinese market, industry and product sophistication, the growth of local enterprises, and the Chinese government's specific implementation Twelfth Five-Year Plan, China's bearing demand after five years than the current doubling this requires a corresponding bearing industry has rapidly expanded.

       NSK will be local talent as the main force to carry out operations, respond quickly to the rapid development of the Chinese market and diverse needs and achieve self-reliance-based production, sales, technical management system, so that we become truly a Chinese local enterprises. Only NSK production base in China and the increase in sales outlets in order to meet the market demand in China NSK

United States TIMKEN company eventually leading companies to fulfill environmental commitments

U.S. Timken Company support local investment projects, including the construction of water recycling in Bearing test machine  India and wastewater treatment systems to help the region 's farmland irrigation ; through donations of land and financial support to help build the U.S. state of South Carolina Utah Niang County (Union County ) community sports venues ;

    3 United States TIMKEN company eventually leading companies to fulfill environmental commitments, including : TIMKEN company since 2008 for EAF dust recycling , reducing 31,000 tons of landfill ; TIMKEN Company recycled packaging innovations annual reduction the six million pounds of waste generated ; TIMKEN company recycling nearly 300 tons of metal scrap to produce new steel products . Timken makes steel products, raw materials from almost 100% recycled materials ;

    4 U.S. Timken employees worldwide , and dedication of thousands of volunteer hours into the relevant organizations in leadership and community service , including the " Habitat for Humanity (Habitat for Humanity)", " Junior Achievement organization (Junior Achievement) "," United Way (United Way) " and many other social and educational charity. 2009 , Timken Timken Company Charitable Fund and invested in the construction of community and educational donations amounting to $ 2,400,000 ;

     TIMKEN company's global corporate social responsibility in environmental achievement and contribution to business ethics in the industry for all to see . This has fully demonstrated its global corporate social responsibility for co clear understanding of business ethics , namely: business practices adhere to the highest standards not only related to the company 's reputation , but also, and business performance and profitability are closely related. TIMKEN Bearing Company keeps the world turning, with innovative friction management and power transmission products and services to help customers business ethics mechanical equipment operation more efficient and more reliable.

Wind Turbine Bearings SKF - Nautilus bearing

      SKF 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. SKF Group in order to meet this goal developed for wind turbine SKF Nautilus bearing tapered roller bearings.
 SKF specially developed for high-power wind turbines large contact angle of tapered roller bearings Nautilus bearings. SKF Nautilus bearing for the back to back in the form of tapered roller bearings, with the larger the contact angle (45 °). SKF 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.
 SKF Nautilus Bearing test machine 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 range. SKF 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 application of more reliable and lubricating higher selectivity.
 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. SKF 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, SKF Bearings can also withstand large overturning moment. Configuration of the conventional double bearing comparison, SKF 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.

      SKF Nautilus bearing as SKF Bearing Tapered Roller Bearing part of the sample. SKF Nautilus series bearings to improve wind turbine wind generator power at the same time, reduce their weight, reduce the manufacturing cost of the entire wind turbine for wind power producers who brought the most direct economic benefits.

in the maintenance carried out some exploration and attempts to obtain experience points.

Several grinder hydrostatic bearing repair experience
Author: Time :2008 -10-20 10:15:10

Rotary hydrostatic bearing its high accuracy, good rigidity, high capacity, no wear, high durability and is widely used M210, M131W, 3160A grinder and 2A710, FYT10 Diamond boring head. With the development of digital technology, hydrostatic bearings are also widely used in machining centers, CNC machine tool spindles. YTO AG first engine plant, there are many static pressure and static pressure diamond grinder boring head, in the maintenance carried out some exploration and attempts to obtain experience points.
1 hole restrictor
(A) outside the internal throttle to throttle, and to install the upper and lower chamber pressure gauge real-time display. So easy maintenance, in particular, can easily be cleaned regularly, this is an internal restrictor unmatched.
(2) throttling ratio. Throttling than the theoretical value of β is 1.2 to 1.5, and 1.25 based on years of experience with preferred. So that the maintenance, the need for geometric precision spindle, bearing around the geometric accuracy, concentricity, roundness and taper strictly controlled in order to ensure β values. According to the carrying capacity of the machine to determine the value of e (the geometric center of the spindle and bearing eccentricity), the β value best.
(3) is not installed in the oil chamber spindle, each column of oil out of the oil port must be consistent (observation), if not, should be taken to change the restrictor aperture methods to alter the flow. With 4 cavities, for example, generally lower, left and right chamber of the oil column at between 20 ~ 25mm, hole diameter of 0.25 ~ 0.4mm.
(2) Film feedback restrictor
Feedback throttling film bearing stiffness is great, but the machine in operation often appear hold tile, brushed, lost pressure and so on. The most critical is the feedback film film practice that locking bush, brushed the main reasons are: ① thin plastic deformation due; ② feedback slow. External load mutation, the film did not react when the axis and tile has been rubbed; ③ film fatigue. Film using a long time, fatigue deformation, the equivalent of changing the feedback parameters.

Increasing film thickness and use some of the fatigue resistance of the material, can receive good results. Generally rigid film, a pre-load, reserve gap approach. Specific approach is: the 1.4mm thick rigid 4mm thick film to film, the inferior vena pad 0.05mm thick aluminum foil, so that the spindle than the ideal position to adjust to the high position of 0.05mm. Purpose is force when the spindle (wheel weights, cutting force) after return exactly to the ideal center.

3 Fuel System Improvements

Hydrostatic Bearing test machine  oil supply system, in addition to the coarse filter, fine filter, the rest of the components have a protective effect on the hydrostatic bearing. On the basis of the original system, fuel system improvements.

(A) in the throttle plate after the oil pressure switch and pressure gauge connection port (the original in the accumulator in front), so that the operator can see the chamber pressure and the size of the inlet pressure. When the pressure is greater than a certain value, in order to immediately shut down, in order to avoid bearing locking. Such as: inlet pressure 2MPa, exit chamber pressure 1.2 ~ 1.6MPa, 1.2MPa below will shut down.

(2) increase the number detection device

Hydrostatic bearing between the shaft and the bearing gap of 0.04 ~ 0.05mm, during which the oil has a certain resistance value of the resistance variation detection, it can learn the size of the gap. With spindle pole, bush for another pole, measure the resistance change. After processing this signal sent to the photoelectric alarms and control system amplifier, controls the spindle motor start and stop, in order to avoid friction axis and tile.

ilting movement and rotation of spherical plain bearings.

Thrust spherical roller bearings: rolling body is convex or concave spherical roller thrust bearing. Convex spherical roller bearing ring raceway is spherical shape, a concave spherical roller bearing shaft ring raceway is spherical shape.
Bearings: Spherical bearings and pedestal combined with a component, in line with the bearing axis parallel to the support surface of the mounting screws on the bottom.
Bearing joints: the sliding contact surface of the spherical, mainly applicable to swing movement, tilting movement and rotation of spherical plain bearings.
Bearings: a set of bearing two or more simultaneously by said bearing structure combination of rolling bearings. Such as needle roller and thrust cylindrical roller bearings, needle roller and thrust ball bearings, needle roller and angular contact ball Bearing test machine.
Other Bearings: In addition to the above other than the structure of the rolling bearing.
1. Basic Code bearings
A basic code used to indicate the bearing bore diameter series, the width of the series and type, generally up to five numbers, first described as follows:
1) bearing bore from the right with the basic code first, H digits. Of the common diameter d = 20 ~ 480mm inner diameter of the bearing is generally a multiple of 5, the two numbers indicate the inner diameter of the bearing to the quotient divided by 5, 04 such that d = 20mm; 12 so that d = 60mm. The inner diameter of 10mm, 12mm, 15mm and 17mm bearings, inner code in order to 00,01,02 and 03. For less than 10mm diameter and greater than 500mm bearings, inner representation otherwise, can be found GB/T272-93.
2) The diameter of the bearing series (ie, the same structure, the same inner diameter of the bearing outside diameter and width in the change series) with a basic code the third digit from the right. For example, for radial bearings and thrust bearings to the heart, 0,1 indicates special light series; 2 represents light series; 3 shows the series; 4 represents heavy series. Comparison between the size of the series as shown below. In addition to using a thrust bearing expressed special light series, the other with radial bearings expressed unanimous.
3) The width of the bearing series (ie structure, diameter and the diameter of the bearing width series are the same aspects of change series) fourth from the right with the basic code digits. Figure 13-4 when the width of the line as a comparison of diameter series 0 Series (normal range) when, for most bearing width in the designation may mark the series code O, but for self-aligning roller bearings and tapered roller bearings, width series Code 0 shall be marked.

Type cylindrical roller bearings

Cylindrical roller bearings types include: N, NU, NJ, NF, NUP, NFP, NH (NJ + HJ), NN, NNU, NNF, FC, FCD type
1. N bearing
No outer wall, the inner ring ribs on both sides. Allows the bearing axis relative to the axial direction between the two displacement directions. NU type ribs on both sides of the bearing outer ring, inner ring without ribs. Can allow the shaft between the taper roller bearing seat in the axial displacement in both directions. Therefore, such a structure is suitable for use as a mobile end bearings.
2. N type bearings
No outer wall, the inner ring ribs on both sides. Allows the bearing axis relative to the axial direction between the two displacement directions. NU type ribs on both sides of the bearing outer ring, inner ring without ribs. Can allow the shaft between the bearing seat in the axial displacement in both directions. Therefore, such a structure is suitable for use as a mobile end bearings.
3. NJ type bearings
Outer sides of wall, inner side with ribs. Can withstand a certain amount of axial load. NF type outer side has wall, inner sides of ribs. Also can withstand a certain amount of axial load. Therefore, such a structure is suitable for positioning the axial direction as a single bearing.
4. NUP bearings
Outer sides of ribs, the inner side of the band (fixed) single-wall, while the other side is detachable flat ring. Can withstand a certain amount of axial load.
7. NN bearings
The outer wall, the inner wall on both sides of the middle of the wall. Allows the relative Bearing test machine between the shaft in the axial direction of the displacement produced two, NNU type bearing outer ring ribs on both sides of the middle of the wall, inner wall. Can allow the shaft between the bearing seat in the axial direction of the displacement generating two. Therefore, such structure is suitable for swimming-end bearings. The type of bearing cages are mostly used car solid cage

JTEKT Corporation and Fujio Corporation four years ago

Japan's four major bearing manufacturers being investigated alleged price fixing
2011/07/28 09:05 Source: People
Recently, Japan's four major Bearing test machine manufacturers bearing on suspicion of trading in the implementation of price fixing in violation of "antitrust" and accept the Japanese Fair Trade Commission to force investigation. Industry sources, the 2009 entering recession period, this four manufacturers still continue to raise commodity prices, and to explain the ordering party, said: "In this way even close to the price of the leading enterprises in the world."

Fair Trade Commission considers that the interpretation suspected as an excuse to bid up prices, the ongoing investigation.

Said the person, Seiko Corporation of Japan, NTN Corporation, JTEKT Corporation and Fujio Corporation four years ago, in 2004, after the company allegedly began to raise product prices through negotiation. The company will also sell to wholesalers of products produced according to specifications "pricing table", almost every spring uniform improvement "pricing table" price. NCB Bearing Company is a major global differential transmission parts, bearings and related components supplier. The acquisition is BearingTechnologies in the past five years, the third most important acquisitions.
     BT LazTromler president and CEO of the company said that this acquisition to achieve 2010 sales of $ 110 million target important strategic step. In addition, he also said the acquisition to achieve a win-win benefit, the company will achieve a smooth transition, the customer will not have any negative impact. After the acquisition, BT companies and NCB bearing company could expand in the automotive and heavy truck aftermarket products supply category.
     Bearing Company President and Chief Executive Officer of NCB William "Bud" Hagy said the company's goal has always been to supply our customers the most comprehensive range of products. After the acquisition by BT, the company can provide customers with a wider range of products and services.

only 2 left unattended, monthly production 400,000 units.

two production lines. From the part on the material, installation card, processing, testing to the cleaning, assembly, oiling, packaging and a series of processing procedures, relies entirely on high-precision high-automation equipment complete, advanced processing and testing techniques, such as adaptive grinding technology, online measurement technology, fault diagnosis technology has been widely used, thus reducing the human factors of product quality failure, and the work efficiency is very high. Another example is the Japanese bearing ball Bearing test machine grinding production line automatic two different models, one for the grinding process of automatic wire processing equipment, an automatic line outside the ring a total of 18 sets of equipment, one person in two autoline. 6200 Ultra line grinding beat 4.8 seconds / parts, auto shop a total of 8 lines by four left unattended, monthly 1,000,000 sets. Another mill installed automatic line consists of 27 pieces of equipment, only 2 left unattended, monthly production 400,000 units.
Second, the creation of specialized production patterns and to maintain quality brands. Japanese bearings production is mainly heat treatment, grinding and machining processes, assembly processes. All roughing operations and purchased all the parts, and each part has 2 ~ 3 business, the company supplied. This specialization pattern of production in order to create a good efficiency, labor productivity per person up to 300 million yuan. Whether NSK or NTN, the reason why the world-famous, no doubt is due to quality of sake. Ultra-precision requirements of the customer, they have always responded with the highest reliability. They advocate the production of standardized global production bases, NSK ball bearings nearly half of the brand in the overseas factories, the same can be maintained with the Japanese domestic production of the same level of quality. Because of this, as the leader of the bearing NSK, NTN products, always synchronized with the era's most cutting-edge technology together.

thereby reducing the cost of the turntable.

Crossed roller bearings by the Luoyang Bearing Co., Ltd. specializes in producing Bo Ying, cross roller bearing is characterized by two roller bearings, two rows of staggered rollers. With conventional thrust bearing and radial bearing assembly compared to the centering, cross roller bearings, compact structure, small size, and simplifies the design of workstations, thereby reducing the cost of the turntable.
Further, the use of optimized preload, these bearings have a high rigidity, and therefore the rigidity and precision of the turntable are guaranteed. Thanks to two-row crossed roller design, the effective span of the bearing can be significantly improved, so these bearings have a high resistance to overturning moment. In cross roller Bearing test machine  is divided into two types: the first one is a cylindrical cross roller bearings, the second is tapered cross roller bearings. Typically, cylindrical cross-price ratio tapered roller bearings Crossed roller bearings is low, for a relatively low speed turntable applications; while tapered cross roller bearings tapered roller using a pure rolling design, with high running accuracy, speed capability strong, reducing the shaft length and processing costs and other advantages. Crossed roller bearings are suitable for all types of vertical or horizontal boring machine, as well as vertical mill, vertical lathe and large gear milling applications.
All in all, bearing spindle and turret as the core component of the operating performance of the machine has played a pivotal role. In order to select the appropriate size and type of bearings, we need to consider various working conditions, such as running speed, lubrication, installation type, spindle rigidity, accuracy requirements. On the bearing itself, the only fully understand its design features and the resulting advantages and disadvantages in order to play the best performance out of the bearing.

Bearing Manufacturing Co.

Bearing Manufacturing Co., Ltd. is a design and manufacturing and sale of slewing bearings, slewing Bearing test machine  large bearings, non-standard bearings and special bearings based professional manufacturers, the company is committed to wheel bearings and bearing large research and development. Companies rely on the country's largest production base --- Luoyang Bearing, has strong technical force, advanced technology and equipment and perfect testing equipment, product design and research capabilities in the industry-leading level. Senior professional and technical personnel courage to innovate and develop new products. Professional mechanic team after several training and strict technical level assessment, rigorous style of work, product quality improvement. The main production four-point contact ball bearing, cross roller, three-row roller slewing wheel bearing is the flagship product, our products all the technical indicators have reached or exceeded the national standard. Can produce slewing range 200 --- 6500mm in diameter between the various products, external gear, internal gear, no gear, designed and manufactured according to customer needs, the products have reached or exceeded the national standard. Application: mining, metallurgy, petroleum, chemical, engineering machinery, port equipment, aerospace, and many other areas of lifting equipmentOur leading technology for the advantage of being in a highly competitive era. Companies actively promote modern scientific management system, management system has passed ISO9001: 2000 international quality certification, with a sound, scientific and perfect quality assurance system and advanced laboratory equipment and testing methods, to ensure product quality and long-term stability. From each part, each process, each product reflects the quality of our company on the corporate soul. The number of products the company has intellectual property rights, such as the scroll compressor eccentric translational thrust ball bearings with shaft-type components, and Tandem Thrust cylindrical roller bearings and other projects.
Our mission: with great enthusiasm and go all out to promote the development of bearing industry; customers determine our actions; we will be the best quality of service, with customers to share the joy of success.。

Domestic bearing 2015 sales will reach 222 billion yuan

Bearing test machine are machinery and equipment manufacturing industry in the critical components, machinery and equipment performance, quality and reliability depends on the bearing performance. China's bearing industry after years of development, has formed a relatively mature industry scale. At present, the annual output value of China's bearing industry 130 billion yuan, ranking third in the world. By 2015, China's bearing industry sales will reach 222 billion yuan, an average annual growth rate remained at about 15%.
    Although the development of China's bearing industry has made some achievements, but the current problems can not be ignored, the most prominent is the low-end products and more high-end products still mainly rely on imports. The development of high-end bearings and China lags far behind the development of machinery and equipment. It is gratifying is that some have a certain accumulation, and is committed to innovative companies in the development of a breakthrough high bearing products. Such as professional P4, P2 class R & D and production of high-end precision bearings Luoyang Precision Bearing Co., Ltd. Chung Yue. Currently, the company produces machine tool bearings, spindle bearings, high-speed bearings and other competitive advantages are obvious, especially in machine tool bearings, product quality has equivalent with imported products.
    Based on the development of high-end bearings backwardness, has introduced the "Twelfth Five-Year Plan" made ​​it clear that the state will play a guiding role of industrial policy to support the bearing industry. In the country's guiding role, the bearing industry access threshold will increase low-end products can be controlled high-yield, high-end bearings will enter a rapid development stage.