NingBo Shefule Bearing Co.,Ltd.  中文版

PRODUCT RANGE

我们的产品

Shefule was founded in 2008 and the main production is 6000,6200,6300,6400,6700,6800,6900,16000,63000,62200,62300, MR series,
and a variety of Inch R series, 1600 series, RLS and RMS Series.

BEARING APPLICATIONS

工业产品应用

Shefule bearing are widely used in automobile，motorcycle，water pump，electric tools，air compressor，reducer，industrial machines，
generator，textile machines，agricutural machines，transmission equipment，architecture equipment，machine tools , etc。

BEARING APPLICATIONS

家用产品应用

Shefule bearing are also widely used in family appliance and business equipment，such as air conditioner，washer，cleaner，massage chair，
sewing machine，range hood，micro-wave oven，duplicating macline, etc。

WHO ARE YOU

NingBo Shefule Bearing Co.,Ltd.

 

is a factory specialized in producing and selling XBL good quality bearing and related products.The company is committed to become the benchmark
of Chinese bearing enterprises which provide users with cost-effective and better solutions by advanced technology, reliable products and professional service.

 

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Company NewsMORE +

  • China s bearing industry is in urgent need of independent innovation to achieve technological breakthroughs and upgrading

     China Bearing Industry Association revealed that Chinas bearing industry in 2010 sales revenue and profit growth of more than three. However, China Bearing Industry Association, the relevant responsible person said that in 2011 the pressure will further increase the bearing industry, bearing industry growth will be slowed, bearing enterprises should pay attention to. Bearing enterprises responsible person told the reporter, now energy equipment, as the representative of the high-end equipment manufacturing coincided with the peak of development, if can leveraging energy equipment and other downstream industries to achieve technological breakthroughs in high-end bearings, greatly enhance the level of development of bearing industry.
    12th Five-Year to enter the high-end bearing
    According to China bearing industry association data, the bearing industry in 2010 the main business income will exceed 100 billion yuan mark, reaching 120 billion yuan, the growth rate will reach 30%. Among them, a large increase in demand for small bearings, bearing production is expected to reach 15 billion units throughout the year, an increase of 36.36%.
    It is understood, in 2010 the national bearing industry leading enterprises R & D the 13 key areas in 106 kinds of major technology and equipment of the supporting bearing 528, new sales income of 92 billion yuan, the product reached the level of similar foreign products. Including reached the international advanced level of the wind turbine yaw, pitch bearings, nuclear power plant secondary pump bearing, high power locomotive bearing, ultra precision of Sendzimir mill bearing and continuous casting production line segment bearings, and the gradual implementation of the industrialization.
    China Bearing Industry Association official said, "Twelfth Five Year Plan" period, focus on the development of is greatly improve product quality and technical level, increase the market share of key host supporting bearings, to enter the high-end market in the high-speed railway passenger car bearing, high power wind power bearing, precision CNC machine tool main shaft bearing, large aircraft bearing bearing.
    Supporting domestic production of energy equipment
    Wazhou group technical staff told reporters that the bearing is the equipment manufacturing industry is an important and critical infrastructure components, directly determines the major equipment and the host of product performance, the level of quality and reliability, but Chinas high-end bearing such as high speed and high precision machine tool bearings, power supporting bearings currently rely mainly on imports.
    An industry source to reporters cited an example, although China has independent intellectual property rights EMU technology, but the application is still supporting the localization of the bearing blank. At present, Chinas high-speed bearings can only meet the 150-180 km of the EMU, while the European and American countries high-speed rail bearings to meet the needs of 350-400 km per hour. So, at present, more than 200 kilometers per hour for the motor car group supporting high-speed rail bearing basically rely on imports.
    In the field of energy equipment, one of the key parts of bearing but also the constraints of major equipment.
    Wind turbine manufacturers told reporters that the use of wind power equipment of poor working conditions and long life and high reliability requirements, make wind power bearing has high technical complexity, bearings, control system is recognized domestic difficulty biggest two parts. Now the country to vigorously develop wind power and other new energy sources, but domestic enterprises unable to produce high-end wind power bearing, had to import bearings, helpless endure high prices, increased the cost of wind power equipment, also restricts the decline in the cost of wind power.
    Chinas bearing industry is in urgent need of independent innovation to achieve technical breakthrough upgrade release time: 2011-03-03 source: China energy news report in the field of water and electricity equipment also has a similar situation. It is understood, as one of the large hydroelectric generating unit is the key part of the thrust bearing under rotational part weight and water thrust of the hydrogenerator unit, its performance not only directly related to the unit can run safely, but also affect the turbine output and efficiency. Therefore, the large thrust bearing technology is the key technology that must be solved in the development of the 1000 MW turbine generator set. Fortunately, the domestic enterprise has just overcome this one soon.
    In addition, deep drilling rig turntable bearings, offshore drilling platform series bearings and other energy equipment bearings also need to master the core technology. China Machinery Industry Association, an expert told reporters, including bearings, including the level of parts manufacturing is the basis for major energy equipment to achieve localization and autonomy.
    To solve the industry ills
    Tianma Bearing Co., Ltd., a person to reporters said: "although it is expected that bearing industry this year will further increase pressure, bearing industry growth will slow somewhat, but is mainly structural adjustment needs, like energy equipment bearing of large-scale wind power bearing of domestic enterprises basically do not. Even if some of the production of bearings, in cost-effective, high precision, low noise, long life and high reliability and other aspects of well-known enterprises with foreign countries there is a big gap. If you can break through the high-end bearings, domestic enterprises will have a lot of room for growth."
    It is understood that the development of bearings and the host is not synchronized with the industry is facing a major problem. Due to the rapid development of high-end equipment, all kinds of high-end equipment bearing bench test and other modern experimental means to put too much and did not keep up, leading to the slow development of bearing R & D, bearing development did not keep up with the development speed of the host.
    In addition, the problem is also very prominent industry standards. Some industry analysts believe that at present Chinas high-speed rail, wind power and other demand bearing almost completely dependent on imports, in addition to the lack of core technology, an important reason is the demand for high-speed rail, new energy industry of high-end bearings to develop corresponding industry standards have not yet. It also restricts the development of high-end bearings.
    Insiders said that the breakthrough needs of high-end bearings have a good platform, relying on related projects. With the development of strategic emerging industries and high-end equipment manufacturing industry

    【2016/6/13】
  • The type of deep groove ball bearing

     Deep groove ball bearing is the most common type of rolling bearing. The basic type of deep groove ball bearing consists of an outer ring, an inner ring, a steel ball and a group of cage. There are two kinds of single and double row deep groove ball bearing type, single row deep groove ball bearing type code is 6, double row deep groove ball bearing code 4. Its structure is simple, easy to use, is the production of the most common, the most widely used type of bearing.
    working principle：
    Deep groove ball bearings mainly bear radial load, also can bear radial load and axial load. When the radial load is only subjected to the radial load, the contact angle is zero. When deep groove ball bearings with a larger radial clearance, with angular contact bearing performance, can bear large axial load, deep groove ball bearing friction coefficient is small, the speed limit is also very high.

    【2016/6/13】
  • How to identify the quality of bearing equipment?

     1 outside the packaging is clear
    Under normal circumstances, the regular manufacturers of brand have its own special external packaging designers design, and arrange production conditions clearance of the plant production. Therefore, the packing of the products both in line to the blocks of color should is very clear and unambiguous.
    The 2 word is clear.
    Each bearing products will be printed on the bearing products, such as its brand name, label, etc.. Although the font is very small, but the regular manufacturers products have adopted the stamp printing techniques, and without overheating treatment before they are pressing the word, so the font, though small, but Au was deep, very clear. Instead of the usual case, counterfeit products fonts instead of fuzzy, due to rough printing technique, fonts, floating on the surface, some even easily can erase or hand signs seriously.
    Whether the surface traces of muddy 3
    The surface is cloudy stain which we should pay special attention to in the purchase of imported bearings. Due to the domestic current antirust technology with foreign advanced manufacturing country there is still a certain gap, so the bearing body of antirust processing is easy to leave a thick layer of grease, with hand contact feeling sticky, and foreign imported bearing almost can not see traces of any anti rust oil. According to industry insiders, especially careful people can smell a special taste in the import bearings, this is the taste of rust.

    【2016/6/13】

MORE +Industry news

  • The influence factors of deep groove ball bearing life

     Deep groove ball bearing material in a large extent determines the service life of the bearing, once the metallurgical quality of bearing steel GCr15 is caused by the rolling bearing early failure is the main reason. After a substantial increase in metallurgical technology, bearing steel and other materials have emerged, has been greatly improved.
    In the bearing failure analysis, caused by raw materials bearing failure ratio has also been greatly improved, but the manufacturing material is still the main cause of the bearing failure, considerable more and deep groove ball bearing service life. Bearing manufacturing process complex, to go through multi-channel processes can be finished, the forging, heat treatment, machining and grinding process of technological capability and quality will affect the bearing service life and application effect, especially heat treatment and grinding process, is the direct cause of a lot of bearing failure, the need to get production enterprises attach great importance to.
    After the installation of deep groove ball bearing, in order to check the installation is not correct, to running inspection. Small machinery can be rotated by hand to determine whether the rotation is smooth. Check the project mainly due to a foreign body, indentation caused by poor functioning, due to poor installation, installation seat processing bad moment instability, caused because the clearance is too small, installation error, seal friction torque and so on. If there is no exception, you can start a dynamic operation.
    In the shaft and bearing seat, the bearing requirements in the radial, axial and tangential direction, such as the three fixed position. Radial and positioning to cut through the tight fit of the bearing rings realize pick, axial position only in a few cases the tight fit; generally use the axial spacing parts, such as the end cover and a retainer ring, etc. the axial position defined in the context of clearance.
    Choose to pay attention to the following four points:
    (1) the circumferential surface of bearing rings should have good support and uniform force, in order to reduce the distortion, and can give full play to the bearing capacity.
    (2) rings in their mating surfaces cannot slide along the tangent, otherwise it will damage the mating surfaces.
    (3) free end bearings must be able to adapt to changes in the length of the shaft and the hole of the bearing seat, which must have the ability to adapt to the axial position in a certain range.
    (4) must pay attention to the deep groove ball bearing installation and removal easy, saving time and labor costs.

    【2016/6/13】
  • Deep groove ball bearing noise

     Bearing raceway is due to the bearing rotates roller in roller in rolling and stimulate the smooth and continuous noise, only when the sound pressure level or tone of voice greatly to cause people to pay attention to. In fact, rolling road sound excited by acoustic energy is limited, such as in normal circumstances, high-quality 6203 deep groove ball bearings roll say 5 to 27db. Deep groove ball bearing this noise to bear radial load is the most typical, it has the following characteristics.
    First, the frequency of vibration in more than 1kHz.
    Two, the bearing rigidity increases, the lower the total sound pressure, which makes the type of speed increase and the total sound pressure level is slightly increased.
    Three, the higher the viscosity of the lubricant, but the lower the sound pressure level, the viscosity of the grease, the shape and size of the soap fiber can affect the noise value.
    Four, no matter how to change speed, noise frequency and sound pressure level is almost the same as

    【2016/6/13】
  • Terminology and corresponding analysis in the process of bearing assembly

    Bearing in the installation process will encounter many technical terms, duplex bearing Co., Ltd., Dongguan City, summed up the following terminology commonly used and the corresponding term analysis, welcomed the reference, if there is an error please give correct!
    1. Contact angle vertical to axis line plane (radial) and after the bearing ring or washer drive to rolling body force between the line of action (nominal role of line) angle.
    The diameter of the inner (outer) of the inner (outer) of a ball in the ball bearing inner (outside) of the 2 ball group.
    Inner (outer) diameter of the inner (outer) diameter of the inner (outer) of a row of rollers in the 3 roller group.
    4 nominal bearing ring width two end theory (the distance between the back of the washer). To limit the width of the radial bearing (thrust bearing height).
    5. The actual bearing width centripetal bearing axis line with limited width of bearing ferrule actual end two tangential intersection plane distance. Defining bearing width with the end face of the inner ring and the end face of the outer ring.
    6 the actual width of the actual bearing width deviation of the actual width of the bearing and the difference between the nominal width.
    7 the difference between the maximum and minimum radial distance between the inner hole surface and the fixed point on the inner hole surface and the fixed point of the inner ring of the bearing ring in different angular positions of the inner ring of the bearing ring Kia. At the corners of the above points or in the vicinity of the rolling elements on both sides of the inner and outer ring or inner ring back edge of the block (tapered roller bearing) in contact with the bearing parts in normal relative position.
    8 the difference between the maximum and minimum radial distance between the outer diameter surface and the relative inner ring at different angular positions of sets of bearing rings. At the angle of the above points or in the near both sides of the rolling elements should be in the inner, outer ring or inner ring back edge of the block (tapered roller bearing) in contact with the bearing parts in normal relative position.
    9. The complete bearing inner ring end face of the raceway beating SIA inner ring at different angular positions, in from the inner ring axis radial distance is equal to the inner ring raceway contact diameter half, inner ring base end with respect to the outer ring of a fixed point between maximum and minimum axial distance difference. Inside and outside the roller should be in contact with all the rolling body.
    . the complete bearing outer ring end face of the raceway beating outer ring at different angular positions, in from the outer axis of radial distance is equal to the outer ring raceway contact diameter half, ring base end with respect to inner ring of a fixed point difference between the maximum and minimum axial distance. Inside and outside the roller should be in contact with all the rolling body.
    11. The end of inner hole of the bearing beating SD in the distance the radial distance from the axis of the inner ring is equal to the rolling contact diameter half of the vertical axis line of the ring and the plane of the ring base end between the maximum and minimum axial distance.

    【2016/6/13】
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