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 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.
In the metallurgical industry, the working environment of rolling mills, continuous casting machine or converters is really harsh. These conditions require bearings to withstand the harsh effects of heavy load, high temperature, dust and water. In order to meet the requirements of metallurgical industry, ZYS R & D teamhas developed bearings products with high quality, high precision and long service life and also can offer the bearing solutions for manufacturers in the metallurgical industry.
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.
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..
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.
Our products have passed ISO 9001-2000 Quality Management Certification and GJB/Z9001A-2001 Military Quality Management Certification.
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.
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 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.
Besides all kinds of bearing products,bearing measuring machines are also our main products,which have been exported to India,Iran,Romania,Brazil and many other countries.Our main measuring machines include the instruments for measuring the dimension accuracy,roundness,profile and roughness of bearing parts,the instruments for inspecting bearing performance and other instruments used to automatically inspect and control various parameters during manufacturing process.These instruments are widely used in bearing workshops,inspection stations,measuring room and assembly factories.
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.)
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.