ZYS support high end precision bearing project to hold commencement ceremony in Dagong science and Technology Industrial Park

Recently, Dagong attract high-end precision bearing project held a groundbreaking ceremony in the science and Technology Industrial Park, county people's Congress Chairman Zhou Zongquan, deputy secretary of Shanghai City, Zhujiajue Town, Qingpu district Party committee and town mayor Qiao Huifeng, Shanghai merchants representatives, Dagang village cadres near 200 people to participate in activities.
The project of high-end precision bearings is supported by Luoyang Bearing Science&Technology Co.,Ltd.. The project covers an area of 39.8 mu with a standard factory building of 32,000 square meters and equipment investment of 32 million RMB. The project mainly produces precision bearings for brands such as automobiles, household appliances and medical equipment. After the project is completed and put into production, an invoice sale of 300 million RMB will be formed. Products are sold to Europe and the United States, Japan and South Korea and other developed countries and regions; enjoy a reputation at domestic and abroad.

ZYS break the monopoly of axle box bearing in foreign countries

The technology of subway bearing has been monopolized by foreign countries all the time. China's long-term dependency on importing of axle box bearings is expected to be broken. To break the foreign monopoly in the field of high-end rail transportation bearings, is China's Luoyang Bearing Science&Technology Co.,Ltd..
 Luoyang Bearing Science&Technology Co.,Ltd. recently accepted the interview of  China Business Times reporter and said: "Our company developed bearings in Beijing Metro Line 8, after 3 years of rigorous operational assessment, passenger test 350,000 km, have successfully passed the experts Accreditation. Testing of the data have reached the relevant national standards and the leading domestic level, they can totally replace imported products. "
 Luoyang Bearing Science&Technology Co.,Ltd. became the first one in rail bearing industry that can be mass production and qualified supplier of R & D and production unit. The move marks ZYS breaking the pattern of foreign monopoly in the field, will replace the import of high-end bearings, ending the era of full import of high-end bearings to fill the gap in the country.

Selection of Cutting Amount for Bearing Bush Processing

Selection of Cutting Amount for Bearing Bush Processing

Selection of Back Engagement
When rough machining, in the case of rigid process system and the power of machine tool, it is necessary to take the larger back engagement to reduce the number of load. During fine processing, the machining accuracy and surface roughness of the parts should be ensured. On the basis of the surface quality requirements, tool materials, work-piece materials and machine tool performance, the cutting volume manual or relevant information is referred to: Coarse car outer contour αp=2mm, half fine car outer contour αp=0.75mm, fine car αp=0.4mm; Rough boring αp=1mm, fine boring αp=0.3mm.
Section of Load
In rough machining, according to the machining material, the size of the tool, the diameter of the work-piece and the determined back engagement, the cutting volume manual or relevant data, combined with the machine tool instruction manual, selecting: Half fine car f=0.15mm/r, fine car f=0.1mm/r, fine boring f=0.1mm/r.

Selection of Spindle Speed
On the grounds of the confirmed back engagement, feed quantity and durability of work-piece and tool material, referring to the cutting amount manual or relevant information, and table look-up, select the cutting speed Vc, coarse car Vc=120m/min, half fine car Vc=130m/min, fine car Vc=140m/min, rough boring Vc=60m/min, fine boring Vc=70m/min, and calculate the spindle speed with formula (2-5).
Vc =πdn/1000        （2－5）
In this formula: n is the revolving speed of the work-piece or cutter (r/min).
Vc is the cutting speed (m/min)
D is the rotary diameter of the work-piece or cutter corresponding to the selected point of cutting edge(mm).
Combined with practical experience, the final spindle speed is determined: Roughing machining n=600 r/min, half fine car n=800 r/min, fine car n=1000 r/min, fine boring n=700 r/min, threading n=500r/min.

High-temperature slewing bearing features

 High-temperature slewing bearing cage is aluminum or copper, seals and lubricants have to be high temperature. Around the temperature can reach 300 degrees. The common slewing ring cage is nylon. The ambient temperature can reach 80 degrees. Ordinary support isolation block most of the use of nylon bar, high temperature can be copper or aluminum, can be selected according to the specific temperature, can also be customized, prior and sales staff to communicate clearly on technical issues.

ZYS One-way bearings

ZYS One Way Bearings are divided into open type and sealed type. The keyway can be machined on the inner ring and outer ring.
ZYS freewheel clutch is mainly used in such applications as speed conversion, reversal preventing, intermittent movement and etc. Working principle is to use friction generated by wedge, spring and such compression elements to transmit torque.
Features: small size, transmitting high torque, smooth combining, high slip combining, working without noise, etc.
Technical parameters of ZYS one way clutches:
Fitted outer raceway diameter: φ30mm～φ150mm
Fitted inner raceway diameter: φ10mm～φ120mm
Minimum mounting width: 15mm～30mm
Rated torque: 60N.m～4000N.m
ZYS freewheel clutches are mainly applied in aero-engine, reducer, starting system and the transmitting system of helicopter. Working speed can reach 30000rpm, and even 45000rpm in special condition.

ZYS Slewing Bearing Testing Process

ZYS Slewing Bearing Testing Process

   1.Examination of semi finished product and parts before enter factory

    2.Examination of rough lathing semi finished product

    3. Examination of inner and outer circle of lathe finish

    4.Examination of rough lathing path

    5.Examination of path induction hardened

    6.Examination of gear process

    7.Examination of lathe finish plane

    8.Examination of ruling

    9.Examination of make mounting hole

    10.Examination of lathe finish path

    11.Examination of fitting

     12.Examination of finished product

     13.The finished product enter into warehouse

ZYS bearing

Since 1958, ZYS has been committed to the research and development of “high-tech, precise, cutting-edge, specialized and special” bearings, and relevant products. Our products have been used for aviation, spaceflight, vessel, weapon, mining, metallurgy, wind turbine generator, machine tool, machinery, medical treatment, automobile, rail transport, etc.
Our predecessor, Luoyang Bearing Research Institute, was the only first-class comprehensive research institute in China bearing industry. That is why ZYS accumulates and develops a large number of advanced competitive core technology. Possessing the first-class bearing design technology (design theory, design software, etc. ) and bearing testing technique (testing methods, testing means, etc. ), ZYS has set up a doctoral scientific research workstation, and a strong team full of domestic and foreign experts, whose main researches represent the technology developing direction of China bearing industry. As a leading role in multiple key disciplines, ZYS always provides comprehensive technology advisory services about bearing industry for national important decision-making departments.
Our total assets have reached 1. 9 billion RMB. ZYS has one national research center and four industry parks, and covers 1 million square meters. We can carry out the batch production of various types of bearings from ID 0. 6mm to OD 6800mm and relevant products. We have established large-range quality control systems from miniature bearings to significant large bearings, and the system for electric spindle as well. All products and services passed ISO9001-2000 Quality Certificate.

Special precision bearings

We have rich experience and advantages in manufacturing the special bearings, aviation bearings, satellite attitude control momentum wheel, etc. which perform under the special conditions, such as high temperature, low temperature, high speed, heavy duty, vacuum, radiation protection, anti-magnet, sensitiveness, high precision, long life and other special working conditions. Such mature technology has also been widely used in civilian high-tech regions.

ZYS bearing steel

ZYS has made many China national and industrial standards for bearing steels, such as High Carbon Chromium Bearing Steel, High Carbon Chromium Bearing Steel Specification for Military Use,High Carbon Chromium Bearing Steel Wire, High Carbon Chromium Bearing Steel Seamless Tube, Stainless Bearing Steel Specification, etc. Our main products include GCr4、G8Cr15、GCr15SiMo and such high carbon chrome bearing steels, 7Cr14Mo new type stainless bearing steels, S2 impact resistance bearing steel. 

ZYS precision angular contact ball bearing

ZYS precision angular contact ball bearings consist of high-precision angular contact bearings (standard series),super high-speed angular contact ball bearings,high-speed sealed angular contact ball bearings and high-speed spindle bearings.The inner ring,outer ring and rolling elements of bearing under normal working conditions are made of high carbon chromium bearing steel.To meet the special requirements,such as super high speed,wear-resisting,low temperature rising,long life and high reliability etc.,it’s suggested to use hybrid ceramic ball bearings.ZYS precision hybrid bearings with ceramic ball (HQ1) can significantly improve the speed,rigidity,reliability,and productivity of machine tools,and greatly reduce the friction heat,then extend the service life of host machine etc.Spindles also play an important role in improving the production efficiency and machining quality.Up to now,ZYS has developed 8 groups,20 series and more than 200 varieties of high-frequency spindles.The rated speeds are from 1,500r/min to 150,000r/min.High-speed precision bearings and air static pressure bearings are used as main support.Lubrications include grease,oil mist,oil gas,etc.

ZYS Wind power bearing

In 2001,ZYS was China’s first company to undertake the project of “Main bearings development of large and medium size wind turbine generator system” from National Ministry of Science and Technology.Due to this project,ZYS acquired the core technology and intellectual property in designing,manufacturing and testing the yaw bearing,pitch bearing,wind leaves bearing,gearbox,and generator bearing in wind turbine system.
We have developed a professional group in wind turbine bearing design,property analyses,manufacturing and testing.Cooperating with Xi'an Jiaotong University,we cultivated China’s first postdoctor in the major of wind power generator bearing and exploited the integrated design and analysis software that can conduct load spectrum analysis of wind turbine generator bearing,stress analysis,design verification of key structural parameters,calculation of effective hardened layer depth and the verification of gear and bolt strength,etc.
ZYS wind turbine generator bearings have reached international advanced level.Up till now,we have applied many national patents in wind turbine generator bearings,such as “Slewing bearing for 1.0MW wind turbine generator”,“Slewing bearing for 1.5MW wind turbine generator”,“Self-lubricating cage for slewing bearing”,“Three-row roller combination slewing bearing with long life and high load capacity”,and “Intelligent wind turbine generator bearing based on object net” etc.In particular,the exclusive patent of “Intelligent wind turbine generator bearing based on object net” can realize remote monitoring,fault warning and trouble shooting to wind turbine generator system.

ZYS Service on metal material inspection

We undertake many physical and chemical inspections, including heat treated structure evaluation of bearing parts, the inspections on the depth and hardness of surface deteriorative layer, magnetic particle inspection, retained austenite inspection, contact fatigue life test, etc.

ZYS Si3N4 ceramic ball

Silicon nitride ceramic (Si3N4) is a new kind of bearing material with several good features, it possesses high temperature resistance, corrosion resistance, insulation, non-magnetism, high strength, low density and other features. In the application of bearing, it possesses low friction, low temperature rise, high rigidity, low centrifugal force and other features. It can implement high speed, high precision, high temperature, high rigidity, corrosion resistance and other good features.
Silicon nitride ceramic ball with high precision and high performance  is manufactured by  spray-drying process, near-net-shape, cold isotatic pressing, GPS-HIP combined sintering, compounded abrasive lapping process effectively. The precision grade of it is G5, the materials class is I.

ZYS Automobile bearing

ZYS automobile bearings include tapered roller bearings,cylindrical roller bearings,deep groove ball bearings and angular contact ball bearings,among which clutch bearings and the hub bearings units of the first,second and third generation are mainly used to gear box,axles,transmission system and other parts of all kinds of automobiles.We have conducted thorough research on wheel hub bearings,clutch release bearing,constant velocity cardan joint,gear box bearings and etc.

ZYS Four-Row Cylindrical Roller Bearings

ZYS four-row cylindrical roller bearings are mainly used for heavy machineries, such as mounted on the backup roll of blooming mill, section mill, plate mill, etc. ZYS four-row cylindrical roller bearings are mainly used on the roll necks of hot or cold rolling mills used for forming blooms, plates, and other stock. There are many variations of the bearings: the inner and outer rings can have ribs or not, the inner ring can be in one or two pieces, the bore can be cylindrical or tapered, and other variations.
All four-row cylindrical roller bearings only support radial loads, therefore, they must be used in combination with thrust bearings such as angular contact ball bearings or tapered roller bearings.

ZYS Bearing relevant materials

Holding the advanced manufacturing equipments and testing machines, we have been devoted to the development, manufacture and application of bearing materials, such as ZYS bearing steals, bearing steel balls, ceramic balls, special alloy balls, lubricating oil, grease, plastic cages, cutting tool tips, etc. 

ZYS Bearing manufacturing

ZYS can supply batch production of various bearing manufacturing equipments,like CNC cutting equipments and automatic production line for bearing rings,automatic grinder,superfinishing machine,precision cold rolling machine for bearing rings,semi-automatic multi-purpose grinder for miniature ball bearing rings and other precision manufacturing equipments for bearing.

ZYS Construction machinery

ZYS large-size heavy duty precision bearings are manufactured in our second industry park,which covers 133,333㎡ with total investment of 438 million RMB.
We have a large number of precision and advanced equipments to guarantee the precision and quality of our products,such as CNC vertical lathes,CNC gear shapers,high-speed CNC cutting machines,high-speed CNC drilling machines,CNC hardening machines and imported CNC vertical grinders,etc.
Our slewing bearings have been applied to excavators,boom conveyors,offshore crane,tower crane,floating crane,mobile crane,railway crane and other kinds of cranes.
China’s largest slewing bearings for marine crane was born in ZYS.This bearing is three-row cylindrical roller slewing bearing with OD up to 6.82m and 24 tons.Our unique design and accurate calculation analysis guarantee the safety and reliability of using this bearing in marine crane,which meet the standard of China classification society and are recognized by our customer.

ZYS Rail Transportation bearing

ZYS has been committed to the research and development of bearings for rail transportation for a long time to meet the increasing requirements for rail transportation,such as higher speed,load,reliability and etc.
As China National Quality Supervision and Testing Center for Bearing,we are in charge of bearing quality supervision and inspection arbitration.Therefore,we can conduct simulation test and durability test on our railway bearing testers.
Professional service can greatly improve bearing performance.Therefore,we can supply professional services,like bearing mounting,removal,maintainance,application and etc.to improve the safety of vehicle running.
Our products have passed ISO 9001-2000 Quality Management Certification and GJB/Z9001A-2001 Military Quality Management Certification.

Special precision bearings

We have rich experience and advantages in manufacturing the special bearings, aviation bearings, satellite attitude control momentum wheel, etc. which perform under the special conditions, such as high temperature, low temperature, high speed, heavy duty, vacuum, radiation protection, anti-magnet, sensitiveness, high precision, long life and other special working conditions. Such mature technology has also been widely used in civilian high-tech regions.

ZYS Wind turbine bearings

ZYS has acquired the core designing, manufacturing and testing technique in yaw bearing, pitch bearing, main bearing, gearbox, and generating motor bearing in wind turbine system. We have also cultivated a professional team in bearing design, property analyses, manufacturing and testing. For example, cooperating with Xi'an Jiaotong University, we cultivated Chinese first wind turbine bearing major doctor and exploited specialized integrated design and analysis software that can conduct load spectrum analysis of wind turbine bearing, stress analysis, design and verification of key structural parameters, depth calculation of effective hardened layer and gear and bolt strength check etc. Properties of our wind turbine bearings have reached international advanced level.
   Up till now, we have applied many national patents in wind turbine bearing such as “slewing bearing for 1.0MW wind turbine generator”, “slewing bearing for 1.5MW wind turbine generator”, “self-lubricating cage for slewing bearing”, “long life, high load capacity three row roller slewing bearing”, and “Intelligent wind turbine bearing based on object net” etc. In particular, our exclusive patent of “Intelligent wind turbine generator bearing based on object net” can realize remote monitoring, fault warning and trouble shooting.
 Wind turbine bearing plant is located in our Second Industrial Park covering 133,333 ㎡ and the total investment is 438 million RMB. We have a large batch of precision and advanced equipments like CNC vertical lathes, CNC gear shapers, high-speed CNC cutting machines, high-speed CNC drilling machines, CNC hardening machines and imported CNC vertical grinders etc. We can supply high quality and high precision wind turbine bearings and other slewing bearings.

Double-direction angular contact thrust ball bearings

ZYS double direction thrust ball bearings refer to angular contact thrust ball bearings, which have two dimension series, 2344 and 2347. 2344 series are fit for the small end of taper hole of double row cylindrical roller bearings, with 2347 series for the large end.
As for ZYS  double direction angular contact thrust ball bearing, one circumferential oil groove and three symmetric lubrication holes are set up in the middle of outer ring. Lubricant is lead into the space between the two-row rolling elements and cage assemblies, thus lubrication will be realized through the rotation of bearing.
ZYS angular contact thrust  bearings have such advantages as high precision, good rigidity, low temperature rise, high speed and convenient fixing and removing.

ZYS slewing bearing

ZYS slewing ring bearing series have five types: single-row four point contact ball slewing bearing, single-row cross roller slewing bearing, double row different ball diameter slewing bearing, three-row cylindrical roller slewing bearing and roller&ball combination slewing bearing. All of these slewing ring bearings can be divided into bearings without gears, bearings with internal gears and bearings with external gears.

Single-row four point contact ball slewing bearings Performance

ZYS single-row four point contact ball slewing bearings have such features as upport high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments.
Applications: Hoisting, mechanical handling, general mechanical engineering and etc. 

ZYS Aerospace bearing

ZYS plays an leading role in aerospace bearing industry of China,We has successfully accomplished the bearing assemblies for “Dong fang hong” series man-made satellite,manned spacecraft series from “Shenzhou Ⅰ” to “Shenzhou Ⅹ”,“Chang’E” lunar exploration program,successful docking from “Shenzhou Ⅷ” and “Shenzhou Ⅸ” to Tiangong target aircraft.
We have rich experience and advantages in manufacturing the special bearings and satellite attitude control momentum wheel,which perform under special conditions,such as high temperature,low temperature,high speed,heavy duty,vacuum,radiation protection,anti-magnet,sensitiveness,high precision,long life and other special working conditions.

High precision angular contact ball bearings performance

ZYS angular contact ball bearings can bear radial load and one direction axial load. When the bearing withstands radial loads, axial force will be generated on inner ring. Therefore, the single-row angular contact ball bearings are often used with other bearings which can withstand axial load in the opposite direction. That is, angular contact ball bearings are commonly used in pair, or in groups with three, four and even five bearings.
1. Contact angles
The contact angles of ZYS angular contact ball bearings for machine tool are 15° and 25°. The bearing with 15° contact angle is used when the high speed and light axial load are needed, while the 25° contact angle bearing should be adopted on the contrary.
2. Four dimension series
The precision angular contact ball bearings for spindles have four dimension series, 718, 719, 70 and 72. With the same inner diameter, the outer diameter and the width of 718, 719, 70 and 72 increase in sequence.
3. Application:
•Machine tool spindle
•high-frequency motor
•Robot technology
•gas turbine
•centrifuge
•small-size automobile front wheels
•differential pinion shaft
4. Advantages:
As an important type of  machine tool bearing, ZYS angular contact ball bearing has the following advantages:
The chamfer arc radius of rings is reasonable, which is not only convenient to install, but also guaranteed to improve the installation precision and reduce the risk of the related parts being bumped;
•The speed performance is outstanding
•Unique heat treatment process allows products to achieve the best dimensional stability and rigidity, so as to reduce wear and tear;
•Multiple pre-load levels can help to meet different requirements for speed and system stiffness, which is more reasonable to select and use the levels.

ZYS Medical Dental Handpiece Bearing

High speed dental drill bearing is the heart of high speed dental handpiece. 17 years ago, ZYS was the first one to devote in its design and new material use. ZYS dental drill bearing can give a stable performance as 400 thousand revolutions per minZYS (RPM), which has led dental treatment to a painless era.

S418 and S718 series dental drill bearing, the ferrule and balls are made of 440C stainless steel. ZYS also makes silicon nitride ceramic ones according to customer request. Currently, we are using stainless steel balls from Japan and Si3N4 silicon nitride ceramic balls from Saint-Gobain (USA).

We use super resin material with titanium fibers to make ZYS’s self-developed S418 series dental drilling bearing support frame. Since the hardness of titanium fiber is much lower than fiber glass, it protects the counterpart from friction. We also added some portion of solid lubrication in this resin to reduce friction and let the bearing endure longer friction under high speed rolling. The lubrication capability of this material is quite suitable for dental drilling bearings to take high temperature and high pressure steam sanitization time after time, even in oilless condition.

     Because of the low friction of ZYS dental drilling bearings, it consumes less power but produces strong output performance. It also saves time and man power, preferred by many dental experts.

ZYS Precision bearing instruments

Our precision measuring instruments are applicable for all kinds of bearing measurements. We also supply other specialized precision instruments, such as induction heaters and degaussing equipments for bearings.

ZYS Machine tool bearings

Machine toolZYS precision angular contact ball bearings consist of high-precision angular contact bearings (standard series),super high-speed angular contact ball bearings,high-speed sealed angular contact ball bearings and high-speed spindle bearings.
The inner ring,outer ring and rolling elements of bearing under normal working conditions are made of high carbon chromium bearing steel.To meet the special requirements,such as super high speed,wear-resisting,low temperature rising,long life and high reliability etc.,it’s suggested to use hybrid ceramic ball bearings.
ZYS precision hybrid bearings with ceramic ball (HQ1) can significantly improve the speed,rigidity,reliability,and productivity of machine tools,and greatly reduce the friction heat,then extend the service life of host machine etc.
Spindles also play an important role in improving the production efficiency and machining quality.Up to now,ZYS has developed 8 groups,20 series and more than 200 varieties of high-frequency spindles.The rated speeds are from 1,500r/min to 150,000r/min.High-speed precision bearings and air static pressure bearings are used as main support.Lubrications include grease,oil mist,oil gas,etc.
ZYS precision angular contact ball bearings consist of high-precision angular contact bearings (standard series),super high-speed angular contact ball bearings,high-speed sealed angular contact ball bearings and high-speed spindle bearings.The inner ring,outer ring and rolling elements of bearing under normal working conditions are made of high carbon chromium bearing steel.To meet the special requirements,such as super high speed,wear-resisting,low temperature rising,long life and high reliability etc.,it’s suggested to use hybrid ceramic ball bearings.ZYS precision hybrid bearings with ceramic ball (HQ1) can significantly improve the speed,rigidity,reliability,and productivity of machine tools,and greatly reduce the friction heat,then extend the service life of host machine etc.Spindles also play an important role in improving the production efficiency and machining quality.Up to now,ZYS has developed 8 groups,20 series and more than 200 varieties of high-frequency spindles.The rated speeds are from 1,500r/min to 150,000r/min.High-speed precision bearings and air static pressure bearings are used as main support.Lubrications include grease,oil mist,oil gas,etc.

ZYS Service on bearing testing

We are sincerely to provide you with the following services on bearing testing:
(1) Research and development of all types of bearing testing machines, such as the durability test, life test, performance test and special test of special bearings.
(2) The planning construction project of bearing laboratory and the skill training of test personnel.
(3) Proving all types of bearing testing machines and the transfer of bearing testing technical achievement.
(4) Accepting the research and establishment of testing technology, regulations and standards of all special bearings.
(5) Accepting the development of all kinds of non-standard equipments and control system, and accepting all kinds of software programming.
(6) Accepting the development of all kinds of non-standard equipments and control system, and accepting all kinds of software programming.

ZYS Curved roller bearings

Curved roller bearings can withstand heavier radial loads, and since the outer ring is axially 

guided by the rollers, the bearings can also withstand heavier axial loads, allowing for relatively 

high-speed operation. However, since it is a full complement roller, it is often necessary to fill 

the lubricant at both ends of the mandrel or the hole in the mandrel body.

KR series (with eccentric sleeve model KRE)

KR series of curve roller bearings for the needle roller cage assembly bearings, the outer ring 

through the bolt on the flange and fixed on the bolt on the axle was guided, can withstand 

heavier load and the speed. As the bearing has more grease inside the space, so the lubrication 

cycle can be extended.

Bearing testing

ZYS has conducted in-depth research on bearing testing technology and reliability theory of all kinds of bearings,engaging in the development and manufacture of bearing testing equipments and undertaking the simulation testing,life testing and other performance tests for all kinds of bearings.We can also develop and manufacture the simulation testing machines in full-automatic control for the bearings used in various machineries (aviation,spaceflight,railway,automobile,motorcycle,machine tool,motor,etc.) http://www.zysbearing.com/bearing-testing.html

ZYS Aerospace bearing

ZYS plays an leading role in aerospace bearing industry of China,We has successfully accomplished the bearing assemblies for “Dong fang hong” series man-made satellite,manned spacecraft series from “Shenzhou Ⅰ” to “Shenzhou Ⅹ”,“Chang’E” lunar exploration program,successful docking from “Shenzhou Ⅷ” and “Shenzhou Ⅸ” to Tiangong target aircraft.

We have rich experience and advantages in manufacturing the special bearings and satellite attitude control momentum wheel,which perform under special conditions,such as high temperature,low temperature,high speed,heavy duty,vacuum,radiation protection,anti-magnet,sensitiveness,high precision,long life and other special working conditions.http://www.zysbearing.com/aerospace.html

ZYS Aerospace bearing

ZYS plays an leading role in aerospace bearing industry of China,We has successfully accomplished the bearing assemblies for “Dong fang hong” series man-made satellite,manned spacecraft series from “Shenzhou Ⅰ” to “Shenzhou Ⅹ”,“Chang’E” lunar exploration program,successful docking from “Shenzhou Ⅷ” and “Shenzhou Ⅸ” to Tiangong target aircraft.

We have rich experience and advantages in manufacturing the special bearings and satellite attitude control momentum wheel,which perform under special conditions,such as high temperature,low temperature,high speed,heavy duty,vacuum,radiation protection,anti-magnet,sensitiveness,high precision,long life and other special working conditions.http://www.zysbearing.com/aerospace.html

Aerospace bearing

ZYS plays an leading role in aerospace bearing industry of China,We has successfully accomplished the bearing assemblies for “Dong fang hong” series man-made satellite,manned spacecraft series from “Shenzhou Ⅰ” to “Shenzhou Ⅹ”,“Chang’E” lunar exploration program,successful docking from “Shenzhou Ⅷ” and “Shenzhou Ⅸ” to Tiangong target aircraft.

We have rich experience and advantages in manufacturing the special bearings and satellite attitude control momentum wheel,which perform under special conditions,such as high temperature,low temperature,high speed,heavy duty,vacuum,radiation protection,anti-magnet,sensitiveness,high precision,long life and other special working conditions.

ZYS Rail Transportation

ZYS has been committed to the research and development of bearings for rail transportation for a long time to meet the increasing requirements for rail transportation,such as higher speed,load,reliability and etc.

As China National Quality Supervision and Testing Center for Bearing,we are in charge of bearing quality supervision and inspection arbitration.Therefore,we can conduct simulation test and durability test on our railway bearing testers.

Professional service can greatly improve bearing performance.Therefore,we can supply professional services,like bearing mounting,removal,maintainance,application and etc.to improve the safety of vehicle running.

Our products have passed ISO 9001-2000 Quality Management Certification and GJB/Z9001A-2001 Military Quality Management Certification.

ZYS Wind power

In 2001,ZYS was China’s first company to undertake the project of “Main bearings development of large and medium size wind turbine generator system” from National Ministry of Science and Technology.Due to this project,ZYS acquired the core technology and intellectual property in designing,manufacturing and testing the yaw bearing,pitch bearing,wind leaves bearing,gearbox,and generator bearing in wind turbine system.

We have developed a professional group in wind turbine bearing design,property analyses,manufacturing and testing.Cooperating with Xi'an Jiaotong University,we cultivated China’s first postdoctor in the major of wind power generator bearing and exploited the integrated design and analysis software that can conduct load spectrum analysis of wind turbine generator bearing,stress analysis,design verification of key structural parameters,calculation of effective hardened layer depth and the verification of gear and bolt strength,etc.

ZYS wind turbine generator bearings have reached international advanced level.Up till now,we have applied many national patents in wind turbine generator bearings,such as “Slewing bearing for 1.0MW wind turbine generator”,“Slewing bearing for 1.5MW wind turbine generator”,“Self-lubricating cage for slewing bearing”,“Three-row roller combination slewing bearing with long life and high load capacity”,and “Intelligent wind turbine generator bearing based on object net” etc.In particular,the exclusive patent of “Intelligent wind turbine generator bearing based on object net” can realize remote monitoring,fault warning and trouble shooting to wind turbine generator system.http://www.zysbearing.com/wind-power.html

ZYS precision angular contact ball bearings

ZYS precision angular contact ball bearings consist of high-precision angular contact bearings (standard series),super high-speed angular contact ball bearings,high-speed sealed angular contact ball bearings and high-speed spindle bearings.
The inner ring,outer ring and rolling elements of bearing under normal working conditions are made of high carbon chromium bearing steel.To meet the special requirements,such as super high speed,wear-resisting,low temperature rising,long life and high reliability etc.,it’s suggested to use hybrid ceramic ball bearings.
ZYS precision hybrid bearings with ceramic ball (HQ1) can significantly improve the speed,rigidity,reliability,and productivity of machine tools,and greatly reduce the friction heat,then extend the service life of host machine etc.
Spindles also play an important role in improving the production efficiency and machining quality.Up to now,ZYS has developed 8 groups,20 series and more than 200 varieties of high-frequency spindles.The rated speeds are from 1,500r/min to 150,000r/min.High-speed precision bearings and air static pressure bearings are used as main support.Lubrications include grease,oil mist,oil gas,etc.

ZYS precision angular contact ball bearings consist of high-precision angular contact bearings (standard series),super high-speed angular contact ball bearings,high-speed sealed angular contact ball bearings and high-speed spindle bearings.The inner ring,outer ring and rolling elements of bearing under normal working conditions are made of high carbon chromium bearing steel.To meet the special requirements,such as super high speed,wear-resisting,low temperature rising,long life and high reliability etc.,it’s suggested to use hybrid ceramic ball bearings.ZYS precision hybrid bearings with ceramic ball (HQ1) can significantly improve the speed,rigidity,reliability,and productivity of machine tools,and greatly reduce the friction heat,then extend the service life of host machine etc.Spindles also play an important role in improving the production efficiency and machining quality.Up to now,ZYS has developed 8 groups,20 series and more than 200 varieties of high-frequency spindles.The rated speeds are from 1,500r/min to 150,000r/min.High-speed precision bearings and air static pressure bearings are used as main support.Lubrications include grease,oil mist,oil gas,etc.http://www.zysbearing.com/machine-tool.html

ZYS slewing bearings

ZYS single-row cross roller slewing bearings have the following features: Support combination of large radial force, medium axial force and tilting moment , and meet the requirements for small or zero clearance.
Applications: Hoisting, mechanical handling, general mechanical engineering and etc.  http://www.zysbearing.com/slewing-bearings/single-row-cross-roller-slewing-bearings.html