ZYS successfully completed the installation of SRB wind power main shaft bearing

On December 13, 2022, Luoyang Bearing Research Institute Co.,Ltd successfully completed the installation and application of the first domestically produced self-aligning roller bearing for wind power main shafts with the largest size.

This set of wind power main shaft bearings 240/1180 (self-aligning roller bearings), with an inner diameter of 1180mm and an outer diameter of 1660mm, can meet the needs of main shaft bearings for 5-8MW land-based wind power generators.

The main shaft bearing of wind power is the core component of the wind turbine. In addition to being affected by the wind load in the wind turbine, it also bears the gravity load of the main shaft and the impeller. The working conditions are complex, and it needs to have good impact resistance, flexible centering performance, Excellent raceway fatigue resistance.

By overcoming heat treatment deformation, controlling the internal structure of materials, cold working dimensional accuracy, optimizing rolling body modification and special surface treatment, ZYS Bearings can solve boundary friction and lubrication after the intervention of external pollutants, effectively ensuring the long life of spindle bearings for more than 20 years and high reliability requirements.

In recent years, in terms of new product research and development, Luoyang Bearing Research Institute Co.,Ltd has successively developed the first domestically produced 4.5MW, 7MW, and 10MW main shaft bearings (single-row tapered roller bearings) for installation and application. At the same time, the high operation and maintenance costs of wind power main bearings The characteristics of wind power main shaft bearing residual life prediction system was developed.

In terms of industrialization, ZYS Bearings has realized batch supply of main shaft bearings for 5-7MW double-fed models (spherical roller bearings) and semi-direct drive models (tapered roller bearings).

Since the upgrade of management in June 2022, ZYS Bearings has increased its investment in the industrialization of wind power bearings. Currently, it has an annual production capacity of 1,500 sets of wind power main shaft bearings, yaw pitch bearings, gearboxes and motor bearings. In the future, Axis Technology will continue to innovate in science and technology to help achieve the goal of “double carbon”.

New breakthrough in China’s independent research and development of aero-engine spindle bearings

On October 24, 2022, the anti-fatigue life test of key components of aero-engines carried out by the Beijing Institute of Aeronautical Materials exceeded 50,000 hours, marking a new breakthrough in China’s high-end equipment manufacturing technology.

The key component of this fatigue test is the aero-engine main shaft bearing independently developed by China. The fatigue life of the equivalent accelerated test on the tester did not fail for 50,000 hours, setting a new record in China.

Tang, senior engineer of Beijing Institute of Aeronautical Materials: The aircraft has to fly for thousands of hours. If the bearing fails, the engine cannot be used. It is the center of the engine. The test simulates the working conditions of the aero-engine. So far, the accelerated equivalent life has not failed for 50,000 hours, and the test is still in progress.

According to reports, during the operation and service of high-end equipment such as aircraft and high-speed railways, key components will experience fatigue, cracks and fractures, resulting in product failure, which is a major problem in the world’s engineering field.

Through technical research, Chinese researchers have independently developed a number of key technologies for anti-fatigue manufacturing, established an anti-fatigue manufacturing technology system, solved the problem of fatigue failure of key components, and laid a more solid foundation for the comprehensive autonomy of China’s high-end equipment.

Zhao (researcher of Beijing Institute of Aeronautical Materials) Said: Our anti-fatigue manufacturing technology can do almost all key components. The life and reliability of equipment are reflected by key components. With key components, high-end equipment can be made. Therefore, the overall improvement of China’s manufacturing technology has reached three limits: limit life, limit reliability, and limit weight reduction, which means it is at the international leading level.


Fatigue, wear and corrosion are the three major problems in mechanical engineering manufacturing recognized by the world.

The so-called fatigue refers to the process in which the material gradually produces local permanent cumulative damage in one or several places under the action of cyclic stress and strain, and then cracks or suddenly breaks completely after a certain number of cycles. In layman’s terms, it is like an iron wire. After repeated bending, it will become hot until it breaks, which is caused by fatigue.

The development of the “fatigue” problem can be traced back to 1830. Although after nearly two hundred years of research and exploration, today, the “fatigue failure” problem still ranks first among the three major problems. Because wear and tear can be prevented in advance through early warning, corrosion can be extended through trimming and protection, and fatigue is sudden breakage without any warning, which can be said to be impossible to prevent.

“Forming” manufacturing technology is the first generation of engineering manufacturing technology in the world. It has been passed down for a hundred years. It pursues “form and position precision” and aims to develop in the direction of “near defect-free”, but it does not solve the fatigue problem, resulting in the existence of key components. It has prominent problems such as short life, poor reliability and heavy structure.

From 1948 to 1970, the United States, with the strength of the whole country, researched and invented the second-generation manufacturing technology – “Surface Integrity” manufacturing technology, which is an interdisciplinary technology of “Cutting + Fatigue”. The surface of the components is strengthened, and the fatigue strength is improved to be sensitive to stress concentration, so as to prolong the product life. This technology has given the West a monopoly in high-end manufacturing, but the problem of fatigue has not been resolved, and the world’s manufacturing has not been upgraded and transformed.

Key components are the core of high-end manufacturing, mainly including transmission components, such as gears, bearings, etc.; rotating components, such as blades, wheels, etc.; and main load-bearing components, landing gear, butt bolts, etc. Academician Zhao, who has been engaged in aerospace materials research for a long time, believes that the key component is the integration of the three technical systems of design, manufacturing and materials. Primary failure mode.

Bearings are called the “joints” of the industry. High-performance bearings and gears are key components in mechanical systems. They are widely used in helicopters, aero-engines, racing cars and other precision machinery fields. important factor in sexuality.

In the 1960s, the United States introduced the double vacuum melting technology into gear steel, which solved the key problems of the transmission system. The life of the aviation spindle bearings they manufactured was thousands of hours or even tens of thousands of hours. To this end, five companies in the United States and the West have monopolized 80% of the world’s high-end bearing market and 100% of the aviation and high-speed rail market for more than 50 years. At that time, China’s high-performance gear bearing steel technology was very backward, and the life of aviation main bearings was less than 200 hours, which severely restricted the development of aero-engines, helicopters and other weapons and equipment and high-end mechanical products.

In 2009, the relevant national departments deployed the major project “Basic Research on Anti-fatigue Manufacturing of High-strength Anti-fatigue Aeronautical Components”, requiring the study of a verification piece to evaluate whether the anti-fatigue manufacturing theory and method are available. Because the main bearing of the aero-engine is the most important and difficult key component, the team of Academician Zhao selected a main point main shaft bearing, which can not only complete the verification, but also solve the problem.

In the next 13 years, Academician Zhao presided over the purification research of new bearing gear steel M50NiL. Through the process routes of “purifying raw materials, refining outside the furnace, VIM+VAR double vacuum smelting, and pulling the billet out of the pier”, the purity of M50NiL has exceeded the international leading level. He also designed a case-hardened stainless gear bearing steel composition system, bringing gear bearing steel to ultra-high strength, high toughness and ultra-high hardness levels for the first time.

On July 28, 2021, the aviation main bearing using the new bearing gear steel M50NiL and the most advanced products in the world were “competed on the same stage” in the anti-fatigue test. The ball life of China’s main bearing reached one million hours, 15 times higher than that of foreign products; Under the maximum load of 1.6 times the load spectrum, the accelerated test life (conversion) exceeds 30,000 hours without failure, breaking the international record of 20,000 hours without failure of similar products. The relevant national departments have successfully accepted and passed the basic research project of anti-fatigue manufacturing, including five mechanisms of anti-fatigue manufacturing, four methods of anti-fatigue manufacturing, and technical standards such as 100% increase in fatigue strength and 100 times increase in fatigue life have been completed. This is an epoch-making milestone, and another world record in the mechanical engineering manufacturing industry was born!

King pin bearings

Steering King Pin Bearings 

2021101722282320211017222832             20211017222841

                King Pin Bearing with Tapered Roller                       King Pin Bearing with Ball              King Pin Bearing with Metal Shell

King Pin Bearings also named King Pin Thrust Bearings, are consist of two pieces washer ( the bearing rings), steel ball or steel rollers,cages, rubber seals, metal shell (normally we use chrome steel materials). the same with thrust ball bearings or thrust roller bearings, the King Pin Bearings can support large axial loads in one direction, requiring a minimum axial load for optimum performance.

The bearings are detachable so that the assembly is simple since the washer, the ball, and the cage can be mounted separately. What is the different is the thrust ball bearings or thrust roller bearings have no metal shell design. The materials we adopt chrome steel, and steel ball or steel rollers.


Thrust Ball Bearing with Metal Shell for king pin

thrust ball bearings with metal shell are manufactured as single direction thrust ball bearings. This kind of bearing consist of a shaft washer, a housing washer and a ball and cage assembly, some of king pin bearings are full complement steel balls, without cage. They are designed to accommodate axial loads only and must not be subjected to any radial load.


Thrust Tapered Roller Bearings for king pin

· Comprised of two thrust tapered races, rollers and an outside retainer which holds the components together during shipping and installation.

· Full complement design (cageless).

· These thrust bearings are specifically designed for oscillating applications.

· Types TTC, TTCS and TTCL are identical except for the outside retainer construction.


EASIER also manufacturer and supply many kinds of the other automotive Bearings:

— Wheel Hub Bearings

— Heavy Duty Truck Wheel Bearings

— Auto Tapered Roller Bearing

— Auto Cylindrical Roller Bearings

— AutoMotive Deep Groove Ball Bearings

— Automobile Needel Roller Bearings

— Auto bearing repair kit

— Clutch release bearing

— Tensioner and idler bearing

— Automotive generator bearings

— Automotive air-conditioning bearings

— Steering Gear Bearings

We are China Bearing manufacturer and exporter of King Pin Bearings with steel ball or steel rollers, also written as king-pin or king pin, is a very important component in any vehicle. It is the main pivot in the mechanism of steering in any vehicle. King Pins are also used as fifth wheel coupling apparatus in vehicles. King Pins have an important property of being able to carry heavier weights and therefore can be mostly seen in Large or Heavy Vehicles.

The Kingpin Bearing is capable of bearing thrust pressure in various industrial pump applications and possesses high resistivity and durability. These are constructed using high grade raw materials, which are tested under the supervision of experienced professionals. Kingpin bearing is the main pivot in the steering mechanism of a car or other vehicles.

EASIER as Top China Bearing manufacturer, it Can manufacture and supply complete series King Pin Bearings & King Pin Thrust Bearings, there are few bearing manufacturer in the world manufacturer this kinds of bearings like Fersa from Spain, TIMKEN from USA, TURBO,TKW from China etc. Our products are the same design and replace them for customers on the market. You can see the King Pin Thrust Bearings as follows.

King Pin Bearing List — EASIER Brand, China Bearing manufacturer
Designation Dimension(mm) Type Structure Seals
25TAG001 45*25.3*15.8 King Pin Ball Bearing Ball O Ring
25TAG11C 44*25.3*11.8 King Pin Ball Bearing Ball O Ring
25TAG12A 48*25.3*15.8 King Pin Ball Bearing Ball O Ring
028TAG05-2 54*28.3*16.4 King Pin Ball Bearing Ball O Ring
28TAG003 47*28.3*12 King Pin Ball Bearing Ball O Ring
28TAG12 51.8*28.3*15.8 King Pin Ball Bearing Ball
28TAG12A 51.8*28.3*15.8 King Pin Ball Bearing Ball O Ring
28TAG12E 51.6*28.3*15.8 King Pin Ball Bearing Ball O Ring
30TAG001 51.8*30.3*16.8 King Pin Ball Bearing Ball O Ring
30TAG002 51.8*30.3*15.8 King Pin Ball Bearing cage or without cage O Ring
249210K1 78*50.3*22 King Pin Thrust Bearing Taper Rollers
329210 78*50.3*22 King Pin Thrust Bearing Taper Rollers
329910 78*47.3*22 King Pin Thrust Bearing Taper Rollers
3328712 56*30.5*16.4 King Pin Thrust Bearing Taper Rollers
353118 King Pin Thrust Bearing Taper Rollers
3553118 King Pin Thrust Bearing Taper Rollers
35TAG12A 65*35.3*19 King Pin Ball Bearing Ball O Ring
35TAGB02B 65*35.3*18 King Pin Ball Bearing Ball
40TAG12-1 70*40.2*21 King Pin Ball Bearing Ball O Ring
47TAG001 78*47*23 King Pin Ball Bearing cage or without cage O Ring
55TAG001K 90*55.3*26 King Pin Ball Bearing Ball or Roller
517-52 83*52.3*23 King Pin Ball Bearing Ball O Ring
520-117 42.2*22*13.3 King Pin Ball Bearing Cage
528548B 78*50.3*22 King Pin Thrust Bearing Taper Rollers
528548B1 78*50.3*22 King Pin Thrust Bearing Taper Rollers
528548EJ 78*50.3*22 King Pin Thrust Bearing Taper Rollers
528548EJ-A 78*51.3.22 King Pin Thrust Bearing Taper Rollers
56925 73*40*20 King Pin Bearing Taper Rollers
AF-83345 43.4*23.3*9 King Pin Ball Bearing Ball Black Colour
B-59 82*55.5*22/25 King Pin Thrust Bearing Taper Rollers Special Design
B-130 56*33.3*16 King Pin Ball Bearing With Cage
BE-14 41*22.3*14.3 King Pin Bearing Ball
B139A 67*39.2*20/23 King Pin Bearing
B139B 73*39.2*20/23 King Pin Bearing
CRTD752B 65*35.3*18.2 King Pin Ball Bearing Ball O Ring
CRTD953B 72*45*19 King Pin Ball Bearing Ball Special Design
D15 78.5*41.8*20/23.3 King Pin Bearing
D19 78.6*41.75*20 King Pin Bearing
D27 88.8*50.3*23.8 King Pin Bearing
F78 83*52*5.5/8.5 King Pin Bearing
F-35-A 65*35*18 King Pin Ball Bearing Ball O Ring
F50-4 76*50.3*19 King Pin Ball Bearing Ball O Ring
H-10 42*21.6*13.8 King Pin Bearing Ball or Roller
JLB-U26 48*24.2*15 King Pin Bearing With Cage
JLB-U61 42*25.7*9 King Pin Bearing With Cage Special Design
M74 48*30.3*12 King Pin Bearing With Cage Special Design
N57 56*35.3.16 King Pin Ball Bearing Ball O Ring
N58 51.5*29.3*16 King Pin Ball Bearing Ball O Ring
S14 74*47.2*6 King Pin Bearing
S18 46*25*6/10 King Pin Bearing
T-37-RC 66*37*19.7 King Pin Bearing Taper Rollers
T-21 40*22.2*12.8 King Pin Ball Bearing Ball
T28S-1 53*28.3*16 King Pin Ball Bearing Ball O Ring
T33 56*33*16 King Pin Thrust Bearing Taper Rollers
T50RC 82*50.3*22 King Pin Thrust Bearing With Cage O Ring
TK50RC 82*50.3*22 King Pin Thrust Bearing With Cage O Ring
T113 55.5*29*16 King Pin Thrust Bearing Taper Rollers
T115 48*27.2*12.3 King Pin Ball Bearing With Cage
T119 56*30.5*16 King Pin Thrust Bearing Taper Rollers
T121 55.5*30.7*15.9 King Pin Thrust Bearing Taper Rollers
T126 56*32.3*16 King Pin Thrust Bearing Taper Rollers
T127 66.6*32*19.5 King Pin Thrust Bearing Taper Rollers
T133 56*33.3*16 King Pin Thrust Bearing Taper Rollers
T138 66*36.2*19.5 King Pin Thrust Bearing Taper Rollers
T1380 56*35.2*16 King Pin Thrust Bearing Taper Rollers
T139 59*35.2*16 King Pin Thrust Bearing Taper Rollers
T149 66*38*19.5 King Pin Thrust Bearing Taper Rollers
T163 72.8*41.6*21.4 King Pin Thrust Bearing Taper Rollers
T177 78*46.3*22 King Pin Thrust Bearing Taper Rollers
T178 73*40*19 King Pin Thrust Bearing Taper Rollers
T179S 79*45.5*23 King Pin Thrust Bearing Taper Rollers Rubber Seal
T179SP 79*45.5*23 King Pin Thrust Bearing Taper Rollers Rubber Seal
T179SP-SPEC 79*45.5*25.8 King Pin Thrust Bearing Taper Rollers O Ring
T182 83*46.3*23.8 King Pin Thrust Bearing Taper Rollers
T182S 87*46.3.25 King Pin Thrust Bearing Taper Rollers Rubber Seal
T1822S 83*46.3*17 King Pin Thrust Bearing Taper Rollers Rubber Seal
T188S 87*47.8*23.8 King Pin Thrust Bearing Taper Rollers Rubber Seal
T189S 87*47.8*23 King Pin Thrust Bearing Taper Rollers Rubber Seal
T194S 97* King Pin Thrust Bearing Taper Rollers Rubber Seal
T208 93*52.5*27 King Pin Thrust Bearing Taper Rollers
T208S 97*52.6*28.5 King Pin Thrust Bearing Taper Rollers Rubber Seal
T1910 81*41.8*16 King Pin Thrust Bearing Taper Rollers Rubber Seal
T1910-4 80*41.5*15.8 King Pin Thrust Bearing Taper Rollers
T1921 80*41.5*15.8 King Pin Thrust Bearing Taper Rollers
T3563TS-5 64*35.6*17 King Pin Ball Bearing Ball O Ring
T4072RS 72*40.3*19 King Pin Ball Bearing Ball O Ring
T4075RS 75*40.3*20 King Pin Ball Bearing Ball O Ring
T5082RS 82*50.3*20 King Pin Ball Bearing Ball Double Shell
T508523RS 85*50.3*23 King Pin Bearing Taper Rollers
TAG20-4A 37*20.3*11 King Pin Ball Bearing Ball O Ring
TAG21-1 41.5*21.2*14.3 King Pin Ball Bearing Ball
TAG45-1 72*45*15 King Pin Ball Bearing Ball O Ring
TX151WAPAD 72.7* King Pin Bearing With Cage O Ring
Y25 45*25.3*13.8 King Pin Ball Bearing Ball O Ring
Y25-3 45*25.3*13.8 King Pin Ball Bearing Ball O Ring
Y28-2DB 54.2*28.3*9 King Pin Ball Bearing Ball Double direction
Y30-1AB 51.8* King Pin Bearing Ball or Roller O Ring
Y30-2F 54*30.3*13.8 King Pin Bearing Ball or Roller O Ring
Y30Z-1B 56*30.7*16 King Pin Ball Bearing Ball
Y38 66*38.3*20 King Pin Ball Bearing Ball O Ring
Y45 73*45.3*22 King Pin Ball Bearing Ball O Ring
Y50-9B 80*50.3*19 King Pin Bearing Ball or Roller O Ring
Y50-9J 80*50.3*19 King Pin Bearing Ball or Roller O Ring

China King pin Bearings for Man Truck Bearings, IVECO Truck Bearings, DAF Truck bearings, Renault Truck Bearings, Scania Truck bearings, SAF Truck Bearings, Volvo Truck Bearings, Mercedes Benz truck bearings, truck wheel hub bearing, bearing set without spacer, bearing set with spacer, and tapered roller bearing.

Features of King Pin Bearings

— Excellent prevention from overrunning & backstopping

— Self-Aligned ,

— High load sustaining capacity

— Seal excludes contamination with a separator and bore liner,

— Prevent rotational damage,

— Get automatically locked when rolled in opposite direction

What is bearing in construction machinery?

With the development of the world economy, the rapid development of urban infrastructure and transportation infrastructure, the market has a corresponding increase in demand for construction machinery and equipment, and the consumption of bearings for construction machinery is also increasing day by day. Bearings with reliable quality and excellent performance can improve the efficiency of construction machinery. Reduce downtime, thereby creating greater value.

To understand which bearings are used in construction machinery, we must first understand what are there in construction machinery?

18 categories of products in the construction machinery industry, including excavating machinery, soil shoveling and transporting machinery, construction hoisting machinery, industrial vehicles, compaction machinery, piling machinery, concrete machinery, steel and prestressing machinery, decoration machinery, rock drilling machinery, pneumatics Tools, railway line machinery, military engineering machinery, elevators and escalators, special parts for engineering machinery, etc.

There are many types of construction machinery bearings

Cement mixer bearing

Excavator Bearing

Forklift Bearing

— Full complement cylindrical roller bearings (without outer ring)

Planetary bearing

— Cylindrical roller bearings: gearbox, roller eccentric shaft, travel reduction system, reducer

Spherical roller bearings: roller eccentric shaft, reducer, cement mixer

— Tapered roller bearings: reducer, roller eccentric shaft, travel reduction system, rotating motor, sprocket transmission system, wheel end application,

— Deep groove ball bearings: rotating motors, reducers

— Angular contact ball bearings: reducer

— Needle bearing: gearbox, rotating motor, travel deceleration system

Self-lubricating bearings: on various components such as the chassis traveling mechanism, body parts, and hydraulic components. Including bimetal boundary lubrication rolled bearings, metal-based self-lubricating bearings and metal plastic self-lubricating rolled bearings, etc.


Ordinary heavy industry construction machinery

①Excavating machinery such as single bucket excavators (also can be divided into crawler excavators and wheeled excavators), multi-bucket excavators (also can be divided into bucket wheel excavators and chain bucket excavators), multi-bucket trenching excavators Machine (also can be divided into bucket wheel trencher and bucket chain trencher), rolling excavator, milling excavator, tunnel boring machine (including shield machinery), etc.

②Shovel transportation machinery such as bulldozers (which can be further divided into tire-type bulldozers and crawler bulldozers), scrapers (which can be further divided into crawler self-propelled scrapers, tire self-propelled scrapers and drag scrapers), Loaders (also can be divided into tire loaders and crawler loaders, graders (also can be divided into self-propelled graders and towed graders), transport vehicles (also can be divided into single-axle transport vehicles and double-axle traction Transport vehicles), flatbed trucks and dump trucks.

③Lifting machinery   such as tower cranes, self-propelled cranes, mast cranes, grab cranes, etc.

④Compaction machinery   such as tire rollers, smooth wheel rollers, single foot rollers, vibratory rollers, compactors, tamping machines, etc.

⑤Piling machinery   such as drilling machine, diesel pile driver, vibratory pile driver, breaker, etc.

⑥Reinforced concrete machinery   such as concrete mixer, concrete mixing plant, concrete mixing building, concrete pump, concrete mixing truck, concrete spraying machine, concrete vibrator, steel bar processing machinery, etc.

⑦Road machinery   such as leveling machine, ballast cleaning machine, etc.

⑧ Rock drilling machinery   such as rock drilling rigs, pneumatic rock drills, electric rock drills, internal combustion rock drills and down-the-hole rock drills.

⑨Other construction machinery  such as bridge erecting machine, pneumatic tools (pneumatic tools), etc.

Northwest Bearing Co., Ltd-NXZ China bearing manufacturer

Baota Industrial Co., Ltd. (formerly Northwest Bearing Co., Ltd.), located in Yinchuan City, the capital of Ningxia Hui Autonomous Region, was founded in 1965. In April 1996, Northwest Bearing Co., Ltd. was established, which is the first A-share listing in China’s bearing industry.

Baota Industrial Co., Ltd. (formerly Northwest Bearing Co., Ltd.) is based on the development position of the western part of the motherland, equipping China, and serving the world. It can produce outer diameters of 40 mm to 4000 mm in accordance with international standards, the latest national technical standards and special customer requirements. More than 6000 kinds of bearings. Products are widely used in petroleum machinery, metallurgical rolling mills, heavy-duty vehicles, construction machinery and mining machinery, rail transportation, military equipment, precision motors and other fields. Customers cover the country and are exported to more than 50 countries in Europe, the United States, Asia, and Africa. area.

The company formerly known as the northwest bearing factory, is a third-line enterprise, founded in 1965 in the depths of Helan Mountain. In 1982, it began to move to Yinchuan urban area. It took ten years to build a modern factory in the beautiful saishanghu City Yinchuan urban area. It has become one of the 520 large enterprises supported by the state, one of the top 100 enterprises in the national machinery industry, and one of the backbone enterprises in the national bearing industry. It is one of the largest professional bearing production enterprises in Western China. In 1996, it was restructured and listed, becoming the first listed company in China’s bearing industry. In 2006, NXZ brand of the company was recognized as a well-known trademark in China. In 2008, it obtained the national export exemption qualification. In 2011, Baota Petrochemical Group became the controlling shareholder of the company, established the grand blueprint of building the company into a production base of high-end bearings and a first-class brand enterprise in China by taking strengthening the bearing industry as the main line, aiming at strategic emerging industries and major equipment manufacturing industries, seizing the commanding heights of Science and technology and market.

Northwest Bearing Co., Ltd. is the first listed bearing manufacturer in China. After more than 30 years of development, Northwest Bearing Co., Ltd. has stepped into the ranks of China’s 100 largest mechanical industry enterprises and become one of the largest bearing production enterprises in China. Main production and sales of all kinds of rolling bearings, products are exported to more than 50 countries and regions. The company’s technology center is recognized as a national enterprise technology center, developing nearly 200 kinds of new products every year. In 2000, more than 100 kinds of new products have been developed to fill the domestic gap, and a large number of products have reached the advanced level of similar products abroad. The company has perfect quality system and reliable quality assurance ability. In 2003, it passed ISO9001:2000 quality system certification. It has won many honors, such as “May 1st” labor certificate, “national quality and benefit oriented advanced enterprise” and “national quality Wanlixing advanced enterprise”.

In 2008 and 2009, he successively undertook the R & D of many new technologies and products, such as key technological innovation projects, pilot production projects of key new products in the autonomous region, scientific and technological research projects in the autonomous region, capital projects for optimizing the import and export structure of electromechanical and high-tech products, and has applied for 6 patents. The bidirectional cylindrical roller thrust bearing of new structure, rotary table bearing and backing bearing of oil drilling rig have been awarded In December 2008, it passed the appraisal of scientific and technological achievements of the autonomous region. Through the implementation of the project, the scientific research level of the engineering and technical personnel of the company has been improved. Three people were selected into the “new century 313 talent project” of the autonomous region, one received special allowance from the government of the autonomous region, and two obtained the qualification of professor level senior engineer.

According to the overall plan of the third line construction of the state, with the approval of the former first Ministry of machinery industry, Wafangdian Bearing Factory was built. From the end of 1964 to the beginning of 1965, the first Ministry of machinery sent personnel to Ningxia for investigation twice, and established the northwest bearing factory in Dashuigou, Pingluo County, Ningxia, which met the requirements of “relying on mountains, concealing and dispersing” combat readiness. In April 1996, the original northwest bearing factory established Northwest Bearing Co., Ltd., the first listed company in China’s bearing industry, through joint-stock transformation. In 47 years of development and construction, the West axis has experienced three stages.

Stage one

From 1965 to 1981, it was the stage of building factories in mountainous areas. Thousands of builders from Wafangdian Bearing Factory and all over the country have been working hard in Dashuigou to build roads, bridges and factories. After several years of hard work, it was put into production in 1970. In the next few years, the factory developed slightly, but due to its remote location, inconvenient transportation, the production lingered. In the early 1980s, the production jumped into a low ebb and became a big loss maker in Ningxia at that time.

The second stage

From 1982 to 1992, it was the stage of adjustment and transformation. That is to say, the relocation from Dashuigou in Helan Mountain to Yinchuan city will be carried out. With the concern and support of the party and the government, the company merged the original Yinchuan bearing factory, opened a new factory in the new urban area of Yinchuan City, and started its second business. In 1986, the main production plants, such as material preparation, forging, heat treatment, lathe workers, medium-sized and large-scale ones, were moved to Yinchuan. Later, all the production plants, auxiliary production plants and thousands of employees’ families were gradually moved to the new plant area. Without asking for a penny from the state, without stopping production for a day, and with very hard production and life, it took 10 years to build infrastructure, move, produce, transform and develop at the same time. At the end of 1992, it successfully completed the historical task of adjustment and relocation. People of West axis composed a song of entrepreneurship and victory with wisdom and heart blood.

The third stage

Since 1993, it is a stage of rapid development. In 1996, Northwest Bearing Co., Ltd. was founded. From 2002 to 2006, we put forward and achieved the goal of “three years to get rid of poverty, five years to double and leap forward development”. Then we put forward the goal of “three to five years to achieve a total sales of 1 billion yuan and 10 years to enter the top five industries”. In 2007, after the assets reorganization, China Great Wall Asset management company obtained 81.92 million shares of West axis held by West axis group, accounting for 37.78% of the total share capital, becoming the largest shareholder of West axis. “NXZ” trademark is recognized as “China’s well-known trademark”. In 2008, the company won the honorary titles of “national export commodity exemption qualification”, “autonomous region’s oil R & D and innovation team”, and passed the “national high-tech enterprise certification”.

Advantage of NXZ Bearing

1. The CAD / CAPP / PDM integrated R & D system is advanced in China and has strong product R & D ability. It can provide users with technical support in bearing selection, installation guidance, use and maintenance, etc.

2. Personalized design can be carried out according to user needs and spatial structure to meet user needs.

3. The bearing structure of petroleum machinery is advanced, with high reliability and long service life.

4. The bearing of metallurgical rolling mill is high speed, high precision and impact resistant.

5. High precision, low temperature rise and high reliability of rail transit bearing.

6. Low noise, wear resistance and long service life of cement mechanical bearing.

7. The bearing of metallurgical diaphragm pump has high load, high reliability and long service life.

8. Construction machinery and heavy-duty automobile bearings are of high load and full range.

9. Self lubrication, high strength and high precision of hydraulic machinery joint bearing

In May 2011, Ningxia Baota Petrochemical Co., Ltd. acquired 20% shares of northwest bearing held by Great Wall Asset Management Co., Ltd., becoming the largest shareholder of northwest bearing. Great Wall Asset Management Co., Ltd. still holds 17.78% shares of northwest bearing, becoming the second largest shareholder of our company. After the pagoda became the master of the West axis, it insisted on the West axis people’s governance, put forward and established the development strategy of “big thinking, big hand, great spirit”, “strengthen the main business, expand the scale, and develop the sideline business”, and then put forward the short-term goal of “one year to get rid of difficulties, two years to step up, three years to develop”. Through the unremitting efforts of all employees, the company turned around its losses in 2011, and is moving forward to the goal of “two years to the next level, three years to develop”.

The company has a national enterprise technology center, with strong technical strength, first-class new product research and development and technological innovation capabilities. At present, there are more than 300 professional and technical personnel, including more than 90 senior professional and technical personnel, 8 enjoying the special allowance of the State Council, 4 enjoying the government allowance of Ningxia Hui Autonomous Region, 1 candidate for the national “one million talents project” and 2 postdoctors. The company takes 14 specialized research institutes such as national enterprise technology center, national and local joint engineering laboratory, postdoctoral research workstation, product design institute, technology research institute and Petroleum Machinery Bearing Research Institute as the platform to form a perfect technology and product system, with an average of more than 200 new products developed each year. The oil drilling bearing 30228 / 630q researched and developed has won the National Quality Gold Award. It is at the leading level in domestic product research and development and manufacturing technology in the field of large special bearings. The product has been successfully applied to the launch monitoring devices of Shenzhou V and Shenzhou VI. The company has more than 500 kinds of products to fill the national gap, nearly 1000 of which have reached the international advanced level.

The company practices the quality concept of “customer first, quality first”. It has passed the ISO9001 quality management system, ISO14001 environmental management system, ISO10012 measurement management system, gjb9001b military product quality system and ISO / TS16949 automobile product quality system certification. It is a national first-class measurement unit.

The company has 2500 sets of all kinds of equipment and test instruments, including 425 sets of high, precision and sharp equipment and numerical control equipment. In recent years, the company has made great efforts to strengthen technical transformation, strive to create information-based and intelligent process equipment, so that the quality of the company’s products in the same industry has been greatly improved.

The company has set up distribution outlets in major central cities of the country, formed 16 marketing and service networks covering 31 provinces, cities and autonomous regions of the country, and established good cooperative relations with more than 300 domestic and foreign agents, striving to serve customers more conveniently, quickly and efficiently.

In recent years, the company has planned high-end bearing industrial base in Yinchuan national economic and Technological Development Zone. At present, the company has invested nearly 200 million yuan in the rail transit bearing project. In 2014, the high-end bearing project of 400 million yuan has been launched, and the company’s high-end bearing industrialization base has been initially formed.

C&U Bearing Group-China bearing manufacturer

Founded  in 1984, Renren Group Co., Ltd. is a group company with China bearing manufacturing as its leading industry. It also has Renren Electromechanical Trade, a full chain of convenience stores and other industries. There are 137 member companies, more than 20,000 employees, assets of 11.09 billion yuan, sales revenue of 17.13 billion yuan in 2018, and completion of profit and tax of 1.21 billion yuan. Renren Group was named “Top 100 Enterprises in China Machinery Industry”, “Top 500 National Private Enterprises”, “Top Ten Enterprises in National Key Industries”, “The Most Competitive Brand in China’s Bearing Industry” “C & U)” is a well-known trademark in China.

The bearing manufacturing industry is the leading industry of C&U Group. The precision low-noise bearings (Z3, Z4 products) are tested by the National Bearing Supervision and Inspection Center. The precision reserve rate is 100%, and the premium rate is 100%. Z3 The group stability rate is 95% … It is in a leading position in the domestic industry and fills the domestic gap. The “people-group 10 million sets of precision low-noise car generator bearing project” was included in the National Science and Technology Development Plan by the Ministry of Science and Technology, is a national torch plan project, and is also listed as a national key new product. C & U bearings have been awarded the title of “Excellent Bearing” in China for many times. Seven major bearing production bases including Wenzhou, Hangzhou, Wuxi, Shanghai, Nanchong, Wuhu, and Huangshi have been formed. There are now 65 bearing finished product and accessory manufacturing companies, covering more than 30,000 large, medium and small product specifications. Annual production With a capacity of 1.2 billion sets, it is China’s largest bearing company.

C&U mainly rolling bearings as follows:

1.Deep groove ball bearing

2.Angular contact ball bearings

3.Self-aligning ball bearings

4.Cylindrical Roller Bearings

5.Tapered Roller Bearings

6.Spherical roller bearing

7.Thrust ball bearing

8.Thrust spherical roller bearings

9.Outer spherical bearing

10.Needle roller bearing

11.Water pump bearing

12.Constant velocity universal joint and its assembly for automobile

13.Linear Bearings

14.Turntable bearings

15.Dental drill bearings

C&U also supply bearings for customers applications as follows:

  1. Automotive bearings
  2. Household appliances bearings
  3. Motor / power tools bearings
  4. Motorcycle bearings
  5. Dental drill bearings
  6. Wind power bearings
  7. Metallurgical bearings
  8. High Precision bearings

Automotive bearings

At present, automobiles are developing in terms of light weight, compact structure, solid, high power, good acceleration performance, comfort, durability and high reliability. In addition, due to the advancement of electronic control technology, automobiles have also developed towards practical performance such as low energy consumption, good driving performance, and convenience. Therefore, rolling bearings, as important components for automobile support, must adapt to this development trend.

The C&U Group closely combines these characteristics and is committed to the research and development of automotive bearings, and has developed hub bearing units with inherited ABS pulse generators, long-life gearbox bearings, high-temperature and high-speed electromagnetic clutch bearings, and high-speed sealing performance. Rotary sealed ball bearings, automotive water pump bearings, etc.

Automobile engine

  1. Engine ball bearing
  2. Automotive water pump shaft connection bearing
  3. Needle bearing for engine rocker
  4. Automotive generator bearings
  5. Automotive air-cooled fan bearings 608, 629
  6. Automotive tension wheel bearings
  7. Automotive clutch bearings
  8. Silicone fan bearing
  9. Automotive air conditioning compressor bearings

Car suspension system:

— Tapered bearing for truck axle and differential

— Wheel Bearing

  1. First generation hub bearing
  2. Second generation hub bearing
  3. Third generation hub bearing

— Car gearbox

— Tapered roller bearings for automotive transmissions

— Cylindrical roller bearings for automotive gearboxes

— Automotive transmission ball bearings

— Needle bearings for automotive gearboxes

Household appliances bearings

With the continuous improvement of people’s living standards, people have put forward higher requirements for the performance of household appliances. Renren Group has always taken customer satisfaction as its responsibility, and has successfully developed ball bearings with low noise, long life, and high rotation accuracy.

In addition, the high-end household appliance bearings produced by Renren Group can meet the requirements of low noise. It has long-term quietness, long-distance transport resistance, and is suitable for supporting household appliances (air conditioners, washing machines, refrigerators, dryers, dishwashers, and small appliances). , Ceiling fan, vacuum cleaner, exhaust fan, etc.).

Our goal is to provide quality products to society. After years of exploration and improvement, human-based bearings have successfully replaced imports and become excellent suppliers of air conditioners, refrigerators, washing machines, range hoods, and vacuum cleaners for Midea, Haier, LG and other companies.

  1. Air conditioner silent bearing

2.Vacuum cleaner high speed bearing

  1. Industrial sewing machine bearings
  2. Bearings for washing machines

Motor / power tool bearings

After years of unremitting efforts, the quality of “C & U” motor bearings has been greatly improved and has been favored by major motor manufacturers.

With the continuous improvement of the quality of motor bearings, the high sealing, low noise and long life performance of motor bearings are more effectively guaranteed. At the same time, due to the improvement of the material and production equipment of motor bearings, the practical reliability of bearings is effectively guaranteed The quality level of the motor series bearings has reached the international advanced level, and it can reliably replace imports in various applications with high reliability requirements. The newly launched “TD” series products are exactly to meet these high-end market demands.

  1. Deep groove ball bearings for motors
  2. Motor bearing
  3. Bearings for power tools

Motorcycle bearings

“C & U” bearings are widely used in motorcycles and four-wheeled mopeds. Most of the motorcycle’s mechanical parts are exposed, and withstand the severe test of high-speed rotation in harsh driving environments. Four-wheeled light vehicles travel on various terrains and different speeds, and require good durability in mud, sand and dust. In order to meet this market requirement, Renren Group provides a variety of bearings with high durability and high sealing performance. In addition, in order to improve the assembly performance of products, the Group has conducted in-depth exploration in the research and development of module products.

  1. crankshaft bearing of motorcycle engine
  2. General Motorcycle Bearings

Dental drill bearings

C & U dental drill bearings are special bearings for dental dentists. The inner and outer rings of the bearing are made of special alloy stainless steel; the ball is made of refined stainless steel or super hard ceramic material, which has good wear resistance; the cage is made of polyimide material with high strength, low wear resistance, and self-lubrication.

High-speed dental drill ball bearings for high-speed dental drill handpieces are interchangeable with bearings in dental drill handpieces produced in Japan, Germany, and the United Kingdom.

— Precision grade: ABEC7 (P4);

— Rotating speed: 350,000-450,000 rpm under the pressure of 200-250Kpa;

— Working life: more than 6 months;

— Performance: ultra-low vibration, ultra-low noise; corrosion resistance, no rust.

Wind power bearings

Wind, this ancient and clean energy, is becoming one of the fastest growing energy sources in the world. In the booming situation of the global wind energy industry, Hangzhou Bearing Group Co., Ltd. has become a slewing bearing industrialization manufacturing company specializing in the production, design, development and manufacture of slewing bearing. The company is based on the machinery industry standards of the People’s Republic of China JB / T2300-1999 and JB / T10705-2007 and construction machinery JG / T66-68-1999 slewing bearing series. It uses extensive domestic and foreign advanced technology, standards, Process method, producing various forms and series of slewing bearing products, widely used in engineering, construction, mining, metallurgy, ships, ports, petroleum, chemical, light industry, environmental protection, aviation, wind power generation, instrumentation and other industries, Products are exported to Germany, South Korea, the United States, Japan and Southeast Asia.

Textile machinery bearings

Textile machinery bearings are used in harsh environments and require long life, heavy load, high speed, low noise, and smooth operation. The textile machinery bearings developed by Renren Group have outstanding performance and have been matched to many domestic textile machinery factories. C & U’s special-purpose bearings for air-jet spinning machines can rotate smoothly at high speeds. They have the characteristics of small amplitude, low noise, long service life, and convenient maintenance. The upper roller bearing has good sealing performance, flexible rotation, low friction, stable operation and low power consumption after pressurization. The lower roller bearing has the characteristics of good self-aligning effect, superior dust-proof performance, strong bearing capacity, stable operation and long service life.

  1. Spindle bearings of cotton spinning machine series
  2. Spherical spherical ball bearings
  3. Chemical fiber machine series high-speed winding head bearings
  4. Lower roller bearing of cotton spinning machine series
  5. Special bearings for air spinning machines
  6. Special bearings for chemical fiber texturing machine series
  7. Textile Machinery Tensioner
  8. Special bearing for weaving machine series
  9. Inch and non-standard bearings

Metallurgical bearings

Hangzhou Renben Metallurgical Bearing Co., Ltd. is a holding subsidiary of Hangzhou Bearing Group Co., Ltd., a subsidiary of the Group. It was reorganized from the former Hangzhou Bearing Factory Metallurgical Bearing Branch. The history of the company’s production of metallurgical bearings can be traced back to the 1980’s. It is a designated manufacturer of the former National Metallurgical Ministry Parts Supply Service Center.

The company has strong technology and rich manufacturing experience, modern management system, advanced management technology, complete bearing processing equipment, and perfect measurement and detection methods. The company produces more than 100 kinds of metallurgical rolling mill bearings with three accuracy levels (P0, P6, P5) throughout the year. It provides steel manufacturers with four-row cylindrical roller bearings, deep groove ball bearings, four-point contact ball bearings, double Angular contact ball bearings and slewing bearings, split cylindrical roller bearings, etc. Products are widely used in metallurgy, rolling mills, mining, petroleum, heavy machinery, cement, papermaking, sugar extraction, engineering machinery and other industries. The company proactively adopts new materials and new processes to develop various non-standard bearings required by users for trial production, such as rolling mill roller bearings, rolled steel bearings and other products; metallurgical rolling mill bearings produced by bainite heat treatment process are resistant to fatigue and impact And long life. Its stable product quality has won unanimous praise from customers.

1.Metallurgical rolling mill bearing
2.Tapered roller bearings
3.Split cylindrical roller bearings
4.Single row cylindrical roller bearing
5.Four-row cylindrical roller bearings

High Precision bearings

With the rapid development of numerical control technology, “composite, high-speed, intelligent, precise, and environmentally friendly” has become the main trend in the technology development of today’s equipment manufacturing industry. Among them, high-speed processing can effectively improve the processing efficiency of the machine tool and shorten the processing cycle of the workpiece. This requires the machine tool spindle and its related components to adapt to the needs of high-speed processing. At present, CNC machine tool spindle bearings are basically limited to four types of structure: angular contact ball bearings, cylindrical roller bearings, two-way thrust angular contact ball bearings and tapered roller bearings.

Hangzhou Renben Precision Bearing Co., Ltd. is a key investment project of Renben Group. The company specializes in R & D and production of high-precision angular contact ball bearings and cylindrical roller bearings. Its products are positioned as “the first in the country and world-class”. At present, the company has developed more than 100 specifications of P5 grade and above precision bearings from the inner diameter of 10㎜ to the outer diameter of 200㎜. The main varieties are C (contact angle 15 °), AC (contact angle 25 °) and B (contact angle). 40 °) and other series. There are three kinds of cage materials commonly used in the products: tape cage (T), copper cage (M) and nylon cage (TN1).

Products are widely used in precision machine tool spindles, precision instrument spindles, high-speed motors, traction machines, industrial pumps, screw air compressors, beach motorcycle wheels, reducers, automotive engines, textile machinery, petroleum machinery, woodworking machinery, ceramic machinery, Engraving machinery and other industries.

1. Special bearings for machine tool spindle series
2. Special bearings for industrial pump series
3. Special bearings for high-speed spindle series
4. Super-precision angular contact ball bearings
5. P4 level angular contact ball bearings
6. NN series double row cylindrical roller bearings
7. B series angular contact ball bearings

Double-row spherical roller bearings produced by Hangzhou Renben Bearing Co., Ltd. The outer diameter range of the dimension section is D52-260mm. The main varieties are CA, CAK, CA / W33, CAK / W33, CC, CA-2RS, E / W33, E-2RS, E and other nine series.

The company has recently invested in a large model production line. After it is in place, the bearing outer diameter dimension range will be expanded to D52-540mm, and the model range is 21304–22260. Divided into common products and TD products according to production process, the main application fields are food machinery, textile machinery, washing machinery, construction machinery, industrial reduction machinery, woodworking machinery, papermaking machinery, mining machinery, coal mining machinery, lifting machinery, engineering machinery, Large-scale transportation equipment, chemical machinery, petroleum machinery, metallurgical industry, large steel mills, cement plants, energy industries, etc. The target customer group for product positioning is mid-to-high-end customers, replacing imports.

1.Special bearings for Elevating industry

2.Special bearings for the grain machinery industry

LYC-TOP3 China Bearing Manufacturer

Luoyang LYC Bearing Co., Ltd. (China Bearing manufacturer) was formerly known as the 156 key construction projects during the “One Five-Year Plan” period of the country. It has a nationally recognized technology center, core technologies such as aero engine bearings, rail vehicle bearings, and special equipment special bearings. It is the birthplace of bearings with large diameters and high precision in China. The large-scale rolling mill bearing production unit is also a domestic production base with a wide range of bearing products, wide application coverage, and a full range of products, maintaining a number of records in the Chinese bearing industry.

As a professional China bearing manufacturer, after more than 60 years of development, LYC has a nationally recognized technical center. It can design and manufacture nine types of bearings with various accuracy levels of more than 10,000 and bearing-related special equipment according to user needs. The core technologies of bearings, bearings for rail transit vehicles, and bearings for major equipment are widely used in the fields of national defense, aerospace, wind power, rail transportation, automobiles and motorcycles, mining metallurgy, engineering machinery, machine tools and motors. The birthplace of large-diameter, high-precision bearings is also a domestic production base with a wide range of bearing product sizes, wide application coverage, and a full range of products, maintaining a number of records in the Chinese bearing industry. In particular, LYC successfully provided supporting bearings for the “Shenzhou” series and the “Chang’e” spacecraft, demonstrating strong technical research and development capabilities.

In the past five years, LYC Company has maintained an average growth of more than 30% in its main business income by renewing its philosophy, system mechanism and technological innovation. Its leading products have taken the lead in the domestic market. It has been named the leader in the bearing industry for five consecutive years. The company has been rated as “China’s Most Competitive Bearing Brand in the Market” by the Ministry of Commerce and recognized as a well-known trademark in China by the State Administration for Industry and Commerce. In the selection of 575 nationally recognized enterprise technology centers, the LYC technology center has jumped from the original 301st to 84th, ranking second in the bearing industry, and its core competitiveness has been continuously enhanced. LYC has sales representative offices in more than 30 cities in China, and has established a sound sales service network in Hong Kong, China, San Francisco, Brazil, São Paulo, Italy, Rome, Taiwan, and other places. Its products are exported to more than 70 countries and regions.

  1. On July 24, 1957, the first batch of 2191 sets of automotive gearbox bearings was born.
  2. On March 15, 1959, China’s outer diameter 1.03m, inner diameter 0.65m, net weight 1769kg, and complex structure rolling mill special 777/650 four-row tapered roller extra large bearings were born in LYC.
  3. At the end of 1965, LYCdeveloped a rolling bearing with a special structure, a gear with a jacket and an outer diameter of 2.066m.
  4. In the 1960s, LYC successively completed the development of aviation-specific bearings, the development of supporting bearings for atomic energy industrial equipment, and the development of supporting bearings for rockets. For a project of a national key construction project, two types of bearings with a diameter of 700 mm for vertical roll mills were produced. This guarantees the urgent needs of the country.
  5. In November 1981, a set of oversized thrust radial cross roller bearings with an outer diameter of 5.08 meters was successfully trial-produced in LYC.
  6. On September 27, 1982, B3-706 single-row tapered roller bearings and B3-707 double-row tapered roller bearings produced by LYCwere awarded the National Gold Product Quality Award.
  7. From 1983 to 1987, F7512S, 9E32209H, F230HU, D1176720Q1T1, and D176119Q1T2 bearings developed and manufactured by LYCwere awarded the National Silver Award for Quality Products.
  8. In 1985, LYC developed and completed D3-826 extra large bearings, as well as defense supporting products such as harmonic bearings, navigator bearings, and theodolites.
  9. On January 15, 1988, the LYC trial-produced a 3-942G2 three-row combined turntable bearing with an outer diameter of 5m and a net weight of 14,200kg.
  10. On January 28, 1994, a set of oversized turntable bearings with an outer diameter of 5.44 meters and a weight of 11.752 tons was born in LYC.
  11. On December 18, 1995, a set of oversized turntable bearings with an outer diameter of 5m, an inner diameter of 4.068m, and a total weight of 14,131kg was born in LYC, which broke the record of bearing weight in China.
  12. In 1996, LYCdeveloped and trial-produced the bearings of quasi-high speed railway passenger cars with international advanced level.

13. In March 1998, LYC completed the development of a series of bearings for the Xiaolangdi water conservancy project, creating a precedent for the application of rolling bearings in China.

14. On September 24, 1999, the domestic large-scale rolling mill bearing with sealed structure was born in LYC.

15. In December 1999, LYC independently researched and developed the 2788/1722 wind turbine yaw bearing to replace SKF imported bearings and successfully passed the inspection of the State Science and Technology Commission.

16. On December 28, 1999, the 6397 / 2800GK2 large turntable bearing with a higher hardness in China to replace the imported was born in LYC.

17. On April 22, 2000, the first three series of 50 sets of radial thrust combined bearings were successfully developed in LYC.

18. In July 2000, 82 types of LYC military bearings were reviewed by leaders of the country such as Jiang Zemin, Zhu Rongji, and Hu Jintao at the Beijing Chinese Revolutionary Military Museum.

19. On February 23, 2001, extra large stainless steel bearings were born in LYC.

20. On May 10, 2001, the LYCdeveloped and produced a turntable bearing weighing up to 16870kg.

21. In October 2002, the TK-N312 high-speed wire finishing mill bearing developed by LYC was awarded the national key new product

22. In 2002, LYC’s new product development reached a new level. 340 kinds of pure new products were developed, and the output value exceeded 100 million yuan. Among them, the completed sealed rolling mill bearings, wind turbine supporting bearings, CT machine bearings, special engine bearings, etc. form the Group’s advantageous product group.

23. In July 2003, LYC developed a cross cylindrical roller bearing with an outer diameter of 110mm and an inner diameter of 70mm.

24. LYChas successfully provided series bearings for the “Shenzhou” spacecraft for 7 consecutive times. In October 2003, the fifth time the “Shenzhou” manned spacecraft traveled to space for the fifth time, it made outstanding contributions to China’s aerospace industry and was commended by the state.

25. On June 28, 2004, the LYCshaft produced an oversized bearing with a diameter of 5.492m.

26. In January 2005, LYC Company overcomes the problem of high-speed precision ceramic ball bearings and manufactured two batches of high-quality bearings that meet the requirements of C-class accuracy. In view of product characteristics, LYCproposed new design concepts, using new technologies, new materials, and new processes. At the same time, according to the special requirements of the product, the ceramic ball structure was used in the process design, and the cage material was improved. Finally, the successful development of the product was guaranteed.

27. In October 2005, the “Shenzhou VI” was successfully launched, and all employees of LYC Company, proud of supporting bearings for the Shenzhou series spacecraft, were proud of this. On October 26, China Electronics Technology Group specially sent a congratulatory letter to thank LYCfor the successful launch of the Shenzhou-6 manned spacecraft and the special contribution made by China’s space industry.

28. In February 2006, samples of heavy-duty truck bearings trial-produced by LYC in accordance with SKF standards were successfully rolled off the line and delivered to the Ministry of Railways for bench tests.

29. In August 2006, an Asian record for the bearing industry was born in LYC. 8 sets of large-scale spherical bearings in Asia produced by a large bearing factory for a user were successfully rolled off the line and delivered to the user.

30. On November 25, 2006, the first National Large and Medium-sized Industrial Enterprise “Top Ten Independent Innovation Capability Industry” information conference held by the National Bureau of Statistics was held in the Great Hall of the People in Beijing. LYC Corporation was listed among the national bearings, gears, transmissions and drive components. Manufacturing “Top Ten Independent Innovation Capability Industries”.

31. In July 2007, the “Rolling Bearing Wind Turbine Bearing” standard drafted by LYC was approved by the National Rolling Bearing Standard Technical Committee, which broke the bottleneck restricting the development of the domestic wind power industry in one fell swoop, and was enforced nationwide on September 1, 2007.

32. In August 2007, the domestic 2.0 MW wind power bearing was successfully rolled off the line at LYC, and passed the site acceptance by users.

33. In 2007, LYC’s scientific and technological research project “Development of Earth Pressure Balance Shield Main Bearings” was awarded the National “863” Program “Key Technologies for Full-Section Roadheader” project, and was supported by the national special scientific research funding. This is the first time that the company’s scientific and technological research subject has been shortlisted in the national “863” plan, which fully demonstrates that the development of the LYC brand shield bearing has taken the lead in the country. It is of great significance to further enhance the company’s independent innovation capability and enhance its core competitiveness.

34. The 2007 Henan Provincial Science and Technology Progress Awards selection was announced. The scientific and technological achievements independently researched and developed by LYC Company, “Development of Double Row Four Point Contact Ball Contact Ball Ball Yaw Bearings for MW Class Wind Turbine” won the third prize. This project received special funding from the provincial government. reward.

35. On October 24, 2007, “Chang’e-1” was successfully lifted off. LYC again successfully completed the world-renowned project development supporting task of “Chang’e-1” with the quality of “trustworthy” products. Engineering contributed.

Top3 of China Bearing Manufacturer-HRB

Harbin Bearing Group Co., Ltd. is one of the 156 key construction projects in the country’s “One-Five-Year Plan” period. It is one of the three major bearing production bases in China Bearing manufacturer. Harbin people have created domestic bearing production with strong scientific research and innovation capabilities and arduous spirit of struggle. The first of many companies; the first company producing precision bearings; the first company producing precision machine tool spindle bearings; the first company producing low-noise motor bearings; the first company producing linear bearings; the first company producing aerospace bearings ; The first company to produce machine tool turntable combined bearings; the first to produce steel balls; the first to produce railway speed-up passenger car bearings.

From 2007 to the present, after restructuring and reorganization, separation of main and auxiliary, the lean Harbin Group now has 3,388 main production equipment, an annual production capacity of 80 million sets, and sales revenue of 1.2 billion. A bearing product system of more than 7,000 specifications and varieties of ten types, with leading products for railway passenger cars speed-up bearings, precision machine tool spindle bearings, and mining metallurgical bearings, has been formed. The railway speed-increasing passenger car bearings developed and produced by Harbin Shaft are confirmed as fixed-point manufacturers by the Ministry of Railways. Railway bearing products are well received by manufacturers due to their excellent quality and good reputation, and they have become the backbone products of Harbin axles. The spindle bearings of YRT series precision CNC machine tools developed by Harbin Shaft have filled the domestic gap and realized localization. It has made breakthroughs in various bearing technology fields such as ultra-high and low temperature, anti-corrosion and rust, and high-speed wear resistance. More than 600 products in five categories have won national, provincial, and municipal scientific progress awards and high-quality product awards. And equipment manufacturing have made significant contributions.

The company has passed the quality management system certifications of ISO9001-2000, GJB9001A-2001, TS16949-2009, AS9100 and ISO14000 standards, and established and perfected a scientific and standardized quality assurance system. HRB China bearing manufacturer have won such honors as “Chinese Famous Brand”, “Most Competitive Brand in the Market” and “Export Inspection Exempt Enterprise”.





Mainly products of HRB Group

1. Spherical Roller Bearing

2. Self-aligning ball bearing

3. Deep Groove ball bearing

4. Double-row angular contact ball bearing

5. Linear Motion ball bearing

6. Wheel Bearing

7. Two-way thrust ball bearing

8. Railway special bearing

9. Thrust spherical roller bearing

10. Thrust ball bearing

11. Printing machine bearings

12. Cylindrical Roller Bearing

13. Tapered roller bearing

14. Combined Bearing

15. Turbocharger Bearings


At present, the first phase investment of 1 billion yuan, covering an area of ​​350,000 square meters, is under construction in Limin Development Zone. The product manufacturing process is designed as follows: new process equipment, strong production capacity, detailed management process, strict process control, The process covers a wide range of products, high-grade products, technical transformation and the implementation of new projects. The construction of a modern bearing industrial park will be completed in the next three to five years. Focus on research and development of high-tech products such as railway bearings, third-generation automotive wheel bearings, high-end precision bearings, extra-large wind power bearings; adjustment and improvement of silent appliances for household appliances, industrial motor bearings, automotive tapered roller bearings and other products; the company’s immediate goal is bearings The products have reached domestic first-class and international advanced level. The long-term goal is to achieve the world-class bearing products. The production capacity of railways, third-generation automobile wheels, precision and wind power bearings will be built, and strive to achieve sales revenue of 1.5 billion yuan by 2015. The construction of the new plant strictly reflects high standards, reasonable process layout, fine and lean manufacturing processes, laboratory research and development closer to the actual production, simple and reasonable flow of goods, office areas, production areas, and living areas fully reflect the concept of people-oriented, achieving “becoming an international first-class “High-end bearing supplier” corporate vision, creating a better future for Harbin.

China Bearing manufacturer-Wafangdian Bearing Group Co., Ltd-ZWZ

Wafangdian Bearing Group Co., Ltd. (hereinafter referred to as ZWZ) was founded in 1938. the earliest China Bearing manufacturer, It is the birthplace of China’s bearing industry and ranks eighth in the world bearing industry.  ZWZ has moved north to establish the Harbin Bearing Factory, assisted in the construction of Luoyang Bearing Factory, and built the Northwest Bearing Factory, and has provided hundreds of bearing companies across the country with talents, technology and management support and assistance. ZWZ Made important contributions for China Bearing Industry.

ZWZ is a state-owned assets holding limited liability China Bearing manufacturer with total assets of 7.2 billion, net assets of 3.6 billion, 11,000 employees and operating income of 7 billion yuan. The leading products of ZWZ are major technical equipment supporting bearings, rail transportation bearings, automotive vehicle bearings, wind power new energy bearings, precision machine tools and precision ball screws, and precision large forgings. The company has 8 major product manufacturing bases at home and abroad, a total of 23 manufacturing plants, a national enterprise technology center, a national bearing product testing and testing center, and the only “National Large-scale Bearing Engineering Technology Research Center” in China’s bearing industry. All of the more than 18,000 bearing products of the axle have independent intellectual property rights, accounting for 26% of all the conventional bearing varieties in the world, and meeting the market demand at the rate of developing nearly 1,000 new products each year, and new products account for about 45% of sales revenue. Products are exported to more than 100 countries and regions in the world.

The company has passed ISO9000, ISO14001, QS9000, ISO18000 and other international management system certifications. ZWZ has won honorary titles such as Liaoning Industrial Award, China Industrial Award, National Technology Innovation Demonstration Enterprise, National Intellectual Property Advantage Enterprise, National Enterprise Management Demonstration Enterprise, Liaoning Provincial Integrity Demonstration Enterprise, Bank and Tax AAA Enterprise. For years in a row, the company has been rated as a “contract-honoring and trustworthy enterprise” and a “customer satisfaction enterprise.”


At present, ZWZ will be driven by deepening corporate reforms, taking breakthroughs in high-end products and international markets as the main attack direction, and maximizing corporate benefits as the core, fully implementing commanding heights and internationalization strategies, accelerating the transformation of corporate development methods and advancing product structure adjustments. To improve and innovate enterprise management, fully revitalize enterprise resources, further enhance the core competitiveness of the enterprise, and strive to build the ZWZ into a large-scale bearing group with international competitiveness.


ZWZ Precision Technology and Manufacturing Industrial Park (South District)

ZWZ and Manufacturing Industrial Park (Southern District), covers an area of 1.05 million square meters, with a total investment of 6 billion yuan, of which 3 billion yuan is invested in industrial fixed assets. Projects for precision functional components and functional parts for heavy trucks are being built here, with a total sales increase of 10 billion yuan after full production.


The automobile bearing production base built in the Southern District has a fixed asset investment of 330 million yuan and a total area of 43,000 square meters. It is currently the world’s largest fully automated heavy-duty truck supporting bearing factory. Equipped with 56 production lines, forming a fully automatic production, research and development, production and manufacturing of automotive bearings in strict accordance with the quality management system standards, online detection, online assembly, and integration of information and industrialization. The products fully meet the supporting needs of the modern automotive industry, and guide the development of automotive bearings into units. At present, the production of automotive bearings by pads has been steadily supplied to many world-renowned companies. The annual output value reaches 370 million yuan.

A 18,000-square-meter spherical roller bearing production factory and a 27,000-square-meter heavy-duty truck bearing factory were built in the Southern District, with a total investment of 320 million yuan. At present, the construction of the plant has been completed. In the first half of the year, it entered the trial operation phase and was put into production in October 2014. A special bearing factory is under construction.

The automation rate of all production lines of the ZWZ (South District) Industrial Park will reach 70%, the labor productivity will reach 1.5 million yuan per capita per year, the project investment recovery period will be 7 years, and the energy consumption per 10,000 yuan output value will be reduced by 40%. The R & D and manufacturing of bearings in the seven strategic emerging industries will be accelerated, and the localization rate of major equipment bearings will reach 75%, which will significantly reduce customer procurement costs. Will use the world’s most advanced research and development design technology, process manufacturing technology and testing and testing technology, with the goal of high-tech industry, high-end products, to build a “leading precision technology, green manufacturing coverage, information technology integration, environmental protection and energy saving standards” modern factory.


Brief Introduction to ZWZ Precision Technology and Manufacturing Industrial Park (North District)

ZWZ Precision Technology and Manufacturing Industrial Park is located in the northwest of Wafangdian City,  3 kilometers from the old factory of Wazhou Group, with a total investment of 1.8 billion yuan. 90,000 square meters, the greening coefficient is 31.5%.

The new zone project revolves around the manufacture of major national equipment and precision equipment, replacing imports, and aims at the world’s advanced level, focusing on the development of high-tech, high-speed, high-precision, high-reliability bearing series. At present, the wind power series bearing project, precision machine tool bearing project, major equipment precision bearing project, precision transmission bearing project have all been put into production. Its equipment is all internationally advanced. The annual production capacity of wind power bearings can reach 6,000 units. High-precision bearings for CNC machine tools are now supporting domestic machine tools, and they are currently in a leading position at home and abroad. A series of supporting bearings for high-speed wire rods and wide and thick plate rolling mills has been fully matched for 20 rolling mill production lines including Anshan Iron and Steel. The development of these major products has created the conditions for the development of the national equipment manufacturing industry and the localization of key parts and components, and has also laid the foundation for the development of the axle. In 2013, sales revenue was 1.02 billion yuan.

In 2012, the National Large-scale Bearing Engineering Technology Research Center was put into production in the North District. After a year of hard work, a total investment of 120 million yuan, covering an area of 11,000 square meters and a building area of 18,500 square meters, has built a comprehensive building of a first-class engineering technology research center in China. Seven major bearing test platforms for wind power (energy), rail transportation, and special precision have been completed; large-scale test equipment such as turntable bearing simulation test machines for medical devices, wind power bearing special test machines, and railway bearing performance test machines have been put into operation. ; Newly purchased 160 sets of various types of bearing inspection test research equipment are of international advanced level. The center will be built into a core base of three major functions of technological innovation, technological transformation and personnel training in the field of large-scale bearings in the country. Relying on the “National Large-scale Bearing Engineering Technology Research Center” of Waxing Group in 2009, the Ministry of Science and Technology was included in the first batch of national project technology research center construction project plans. This is the only national large-scale bearing engineering technology research center in the bearing industry. On July 4, 2013, the inspection and acceptance group of the Ministry of Science and Technology came to Waxing to conduct on-site inspection of the construction of the National Large-scale Bearing Engineering Technology Research Center established by ZWZ (China Bearing manufacturer). The acceptance team believes that the bearing is connected to the national large-scale bearing engineering technology research center and is at the forefront of the country and the province. It hopes that the bearing will rely on the platform of technological innovation to build a national scientific and technological innovation base.


What is Electrically Insulated Bearings?

Electrically Insulated Bearing adopted special spraying process, the outer surface of the bearing is coated with high quality film,which has strong binding force with the substrate and good insulation performance.It can avoid the electric erosion of the bearing caused by the induced current, prevent the damage caused by the current to the grease, rolling body and raceway, and improve the service life of the bearing.

The process has been improved continuously. In the insulated bearing, there is a layer of 100μ m thick coating on the outer or inner ring surface, which can withstand the voltage of up to 1000 V DC. Special spraying process can form a coating with uniform thickness and strong adhesion,After further treatment, To protect it from moisture and humidity after further treatment.

Electrically Insulated Bearing can avoid the damage caused by electric corrosion, Therefore, compared with the common bearing, it can be used in the motor to ensure more reliable operation. Compared with other insulation methods, such as shaft or shell insulation, it is more cost-effective and reliable. The external dimensions and basic technical characteristics of insulated bearings are the same as those of uninsulated bearings, so they can be 100% interchanged. It is suitable for motors and generators, especially for variable frequency motors.


Electrically insulated bearing classification

Electric insulated deep groove ball bearing

Electric insulated angular contact ball bearing

Electrical insulated cylindrical roller bearing

Insulated bearing of inner or outer ring with oxide coating

Hybrid bearing with electrically insulated ceramic rolling element

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