Tradebearings Bearings Enquiry Apps Download
Tradebearings for basic bearing designations and dimensions enquiry system, There are more than 1,000,000 models for reference, Bearing types include commonly used ball and roller bearings, slewing bearings, and bearings used in automobiles, agriculture, excavators, and some bearings used on special equipment.
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On December 28, 2022, the seventh working meeting of the first academic committee and expert advisory committee of the National and Local Joint Engineering Laboratory of High-end Bearing Tribology Technology and Application was held both online and offline. Academician Luo Jianbin, Director of the Academic Committee, Deputy Director Professor Zhou Yu, Academician Liu Weimin, Academician Wang Huaming, academician members Shan Zhongde, Academician Ge Shirong, Professor Li Jian, Professor Li Quan'an, and members of the Expert Advisory Committee Professor Xing Jiandong, Researcher Wei Libao, etc. More than 30 members, including Professor Wang Hongbin, Secretary of the Party Committee of Henan University of Science and Technology, attended the meeting. The heads of relevant units such as the School's Regulations Office, the Science and Technology Office, and the School of Materials, as well as all the staff of the laboratory, attended the meeting. Professor Zhang Yongzhen, director of the laboratory, presided over the opening ceremony.
Wang Hongbin delivered a welcome speech and expressed his heartfelt thanks to all committee members for their strong support for the development of the laboratory during the construction period. It is believed that this meeting will play a role in the sustainable development of the National and Local Joint Engineering Laboratory of High-end Bearing Tribology Technology and Application of Henan University of Science and Technology. Important guidance and facilitation.
Luo Jianbin presided over the work report session. Professor Du Sanming, deputy director of the laboratory, reported the progress of the laboratory's work in 2022 to the academic committee and expert advisory committee; Yu Hua, executive dean of the Future Industry Innovation Research Institute of Henan University of Science and Technology and deputy director of the Science and Technology Department, reported the open fund under research The implementation situation and the 2023 laboratory open fund application and letter evaluation; the co-construction unit, the chief engineer of Luoyang Bearing Research Institute Co., Ltd. The academic report on the combing of research results and research progress of the direction.
Liu Weimin presided over the session of expert advice. The academic committee and the expert advisory committee fully affirmed the work of the laboratory during the construction period, and also pointed out the outstanding problems in the development process of the laboratory; the leaders and experts attending the meeting had a heated discussion on the development of the laboratory, and agreed to open in 2023 The fund proposes funding projects, and puts forward guiding suggestions on core issues such as laboratory positioning, talent introduction, research direction, and discipline development. It is hoped that the laboratory will continue to strengthen its own construction and development, open and operate, and strive to reach a new level.
IR90X105X35 NUP 310 ECJ/C3
QVVC16V075ST CJ13T065S
QMPR15J070ST TTUE50
475/472A RAKY12
1986/1931B SAF 617L FXOP
HA3038 QVVFY19V085SM
JM734410 YAK2
DVP11K115SB L725349
PCCJ25 YEL 208-108-2F
QVSN16V075SN XAB32010X-90KA1
H 715343 382948X2-1/HCC9/W283
TAPG15K207SM 24024EJW33C2
KWE20G4-V1 MS3068
QVTU16V075SEM LFCL25
NJ2328EMAC3 NU 1014 ECP/HC5C3
QF175XSF PWKR352RSRRXL
1161/17T HK2520AS1B
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QVVPF19V080SM TAPA13K203SB
3MMC9114WICRDUL FYTB 508 M
313KFS50000 4TR572
Recently, Yushan High-tech Zone and Suzhou Great Wall Jinggong Technology Co., Ltd. held a signing ceremony to create a high-end bearing intelligent manufacturing project and further build the ballast stone of the innovation cluster of key components of Yugao new energy vehicles.
Wan Xiaojun, Member of the Standing Committee of Changshu Municipal Party Committee and Vice Mayor, attended the signing ceremony. Han Xiaocheng, Secretary of the Party Working Committee of Yushan High-tech Zone (Changfu Street), Yao Jun, Deputy Secretary of the Party Working Committee, Kong Danfeng, Deputy Secretary of the Party Working Committee, and Zhu Keming, Chairman of Suzhou Great Wall Precision Technology Co., Ltd. attended the signing ceremony.
Founded in 1969, Suzhou Great Wall Precision Technology Co., Ltd. is a modern high-tech enterprise focusing on providing high-quality bearing products and comprehensive application solutions for global customers.
Great Wall Precision has established Jiangsu Provincial Engineering Technology Research Center, Jiangsu Provincial Enterprise Technology Center and Jiangsu Postdoctoral Innovation Practice Base. Many honors such as enterprise, industrial foundation project "one-stop" application plan demonstration enterprise.
At present, the company has more than 60 authorized patents, and has participated in the compilation or revision of more than 20 national standards and industry standards.
Great Wall Seiko high-end bearing intelligent manufacturing project, with a total investment of more than 300 million yuan, covers an area of about 50 mu, and will increase the production capacity of high-end products. The products are widely used in key components of new energy vehicles, rail transit, new energy, industrial robots and high-end bearings. Carrying heavy equipment and other fields.
The completion of the project will promote Great Wall Seiko to further carry out technological innovation, independent research and development, optimize product structure, promote industrial upgrading, and realize independent controllability of key technologies. At the same time, it will accelerate the import substitution of high-end bearings, enhance the international comprehensive competitiveness of enterprises, and make more contributions to the local economy.
924 Liebherr slewing rings 10 pcs, KGHK12BPPAS
SNT 3192L L225842-90011
22340EMBW33W45AC4 1 7/16 UNIT B/P11372
NCF2976AV 6306-2Z
NJ219EMA CSCG070
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FPXG1200 GRA102NPPBW
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Recently, the "Key Technology Research and Development and Promotion and Application of High-quality Bearing Steel Clean Production Platform" led by Shanxi Iron and Steel Co., Ltd. won the second prize of the 2022 Shandong Science and Technology Progress Award, marking Shanxi Iron and Steel's clean control technology for bearing steel. research has reached a new level.
The "cleaner" the bearing steel means the more "durable". In order to produce cleaner bearing steel, since 2018, relying on key research and development projects in Shandong Province, Shandong Iron and Steel Research Institute has closely focused on the goal of "construction of a clean production platform for bearing steel" and gathered forces from all parties involved in "production, marketing, research and application". Coordinate superior resources, gather strength to overcome difficulties, form key technologies such as clean production, greatly improve the quality of bearing steel products, and realize the localization substitution of some bearing steel application fields in the province.
"At present, there is still a systematic gap between my country's bearing products and the international advanced level, especially high-end bearings are still the short board of my country's high-end manufacturing industry." Dr. Xu Rongchang, a first-level researcher at the Emerging Industry Technology Research Institute of Shanshan Iron and Steel Research Institute, said, "High The R&D, promotion and application of key technologies for the clean production platform of high-quality bearing steel are of great significance to improving the quality of Shangang's bearing steel products, promoting the development of high-end equipment manufacturing, and enhancing international competitiveness.
Xu Rongchang introduced that gas elements such as oxygen and nitrogen in the form of bubbles or inclusions in molten steel are the root cause of quality defects. The lower the oxygen content in the bearing steel, the less inclusions, the higher the purity, the more uniform the structure, the stronger the bearing steel and the longer the fatigue life. Therefore, solving the "cleanliness" problem has become the primary link in improving the quality of bearing steel.
"For bearing steel, there is no key point of research, because it is everywhere." Xu Rongchang said that from raw materials to smelting to pouring, the factors affecting the "cleanliness" of bearing steel are complex, there are many technological breakthroughs, and it is difficult to complete. The project team made full use of the "one institute, multiple centers" research and development platform and the "five-in-one" operating mechanism, starting from the whole production process, focusing on raw materials, oxygen content, refining slag system, inclusions, protection pouring, organizational regulation, etc., successively More than 50 technical details were sorted out.
The project team systematically optimized the low-oxygen and low-titanium smelting process of bearing steel, and successively researched and developed high-quality bearing steel inclusion detection technology, inclusion rare earth modification technology, pulse external field suppression A series of key process technologies for the purification of high-quality bearing steel, such as nozzle plugging technology and microstructure control technology, continue to improve the level of bearing steel manufacturing technology. From 2018 to 2021, the annual average oxygen content of bearing steel will drop from 11.3PPM to 6.0PPM, and the purity, stability and fatigue performance of bearing steel will be greatly improved. According to the test by authoritative organizations, the contact fatigue life L10 of Shangang bearing steel exceeds 107 times, reaching 2.7×107 times, entering the domestic advanced ranks. At present, the key technologies of the project have applied for 15 invention patents, applied for and authorized 8 utility model patents, and formulated 2 related group standards.
With "diamonds" in hand, it is easy to do "porcelain work". In order to realize the "double improvement" of the bearing steel quality and quantity of Shanxi Iron and Steel Co., Ltd., the project team, in conjunction with the relevant personnel of the marketing head office and the special steel business department, visited domestic bearing manufacturing bases, actively explored the middle and high-end bearing steel market, and successfully applied the products to the high-end metallurgical industry. Equipment and other fields, and successfully realized localization substitution. At present, the annual production and sales of bearing steel of Shanxi Iron and Steel Co., Ltd. have increased by 3 times compared with the same period of last year.
"Winning the second prize of the Shandong Provincial Science and Technology Progress Award is a great encouragement to our R&D personnel. In the next step, we will conduct in-depth research on the homogenization control technology of bearing steel, improve the uniformity of the carbide structure of bearing steel, and develop bearing rolling elements. Bearing steel research and development and other "revealing the list" projects have further enriched the types and uses of bearing steel. Use our steel to produce more bearings." Liu Chengbao, director of the Emerging Industry Technology Research Institute of Shanshan Iron and Steel Research Institute, said firmly.
"Actively build a 'material supply-manufacturing-testing and evaluation' full-chain technology innovation service model to realize the internal circulation of bearing steel production-bearing manufacturing-high-end bearing localization in upstream and downstream enterprises in the province." With this "domestic substitution" With the feeling of "culturalization", the team of the Emerging Industry Technology Research Institute of Shandong Iron and Steel Research Institute has embarked on a new journey.
JHM807045-90N01 NA4910P5
12B2S30N 27880
96825-30000 3806/558X4-2RS/HCC9
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213017/9 QVVSN19V080SET
KGSNO12PPAS UFP204
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NA483SW/472D TAPH26K407SEN
50TP122 6211-2RSC3
PCCJ30 6205-2RSHNR/C3GJN
29415 E 7007 ACD/P4ATBTA
CRBC 25025 3779-90127
99575-90184 3MM9120WICRSUL
PSM 121816 A51 TSNW40G5
22344 CC/W33 VLI200414N ZT
10B1S144 1-HSW630
On the afternoon of December 28, the "2022 China Machinery Industry Top 100, Automobile Industry Top 20, and Auto Parts Top 30 Enterprise Information Conference" was held in the form of an online video conference.
The meeting released the list of "Top 100 Enterprises in China's Machinery Industry in 2022, Top 20 Enterprises in the Automobile Industry, and Top 30 Enterprises in Parts and Components", and Renben Group ranked 26th in the list of "Top 100 Enterprises in China's Machinery Industry in 2022". It continues to rank first among enterprises in China's bearing industry.
This press conference is sponsored by China Machinery Industry Federation and China Association of Automobile Manufacturers, and undertaken by Beijing Jijingwang Information Technology Co., Ltd. The purpose is to summarize the achievements of the machinery industry in the past year, to further play the leading role of key enterprises in the industry, to guide industry enterprises to continue to become stronger, better, and bigger, to accelerate industrial transformation and upgrading, to cultivate new kinetic energy for development, and to promote high-quality development of the industry .
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3775-90039 320280X/320406X
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NA52375 QVFX11V050SM
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NKI912XL FPAF 1800
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16137/16282 GWN40B
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NU 2208 ECP 3MV9114WIPRLSUL
24180 ECAK30/W33 QVVFY28V125SET
Principle of angular contact ball bearing: Angular contact ball bearing mainly bears axial load, but can also bear axial load and radial load. When it only bears the axial load, the interfacial tension is zero. When the axial backlash of angular contact ball bearing is large, it has the characteristics of angular contact bearing and can bear large radial load.
Angular contact ball bearing bearing structure: Angular contact ball bearing structure is simple, compared with other types, it is convenient to achieve higher manufacturing precision, which is conducive to mass production, and the manufacturing cost is also low. This type also has various shape modification structures such as: Angular Contact Ball Bearing with Seal Cover, Angular Contact Ball Bearing with Silicone Seal, Angular Contact Ball Bearing with Stop Groove, Steel Ball Groove Bearing with Stop Groove, Double Row of angular contact ball bearings.
Angular contact ball bearing is a relatively common rolling bearing. It consists of an outer side, an inner hole, a set of bearing steel balls and a set of ball bearings. The bearing can bear axial load and radial load, with simple structure and low manufacturing cost. All good for mass production. Today, the angular contact ball bearing manufacturer Rockwell Xiaobian will introduce to you the classification and characteristics of angular contact ball bearings. Let's take a look at it together!
1. Classification of angular contact ball bearings
1. Single row angular contact ball bearings
(1) Single row angular contact ball bearings mainly include series 718, 719, 70, 72, 73, etc. The outer diameter and thickness of bearings with the same inner diameter and different series increase in turn according to the above order. Example 71900 and 71800 have the same inner diameter, but the outer diameter and thickness are larger than the latter.
(2) Angular contact ball bearings can bear (one-way) axial and radial forces at the same time. Contact angles are generally 15° (suffix C), 25° (suffix AC), 30° (suffix A) and 40° (suffix B). The smaller the angle, the smaller the axial load and the faster the speed, and vice versa. , the greater the axial load, the slower the speed.
2. Paired double angular contact ball bearings
The bearing that combines two sets of radial bearings into pairs is called a paired double bearing. Usually paired duplex bearings are composed of the same angular contact ball bearings. Paired double angular contact ball bearings can be divided into three categories: back-to-back configuration, face-to-face configuration, and series configuration:
(1) Back-to-back configuration (code DB): It can withstand radial loads and axial loads in two directions. The distance between the action points is large, so it is suitable for applications with large moment loads.
(2) Face-to-face configuration (code DF): It can withstand radial loads and axial loads in two directions. Compared with the back-to-back duplex, the distance between the action points is small, so the moment load capacity is poor.
(3) Tandem configuration (code DT): It can bear radial load and axial load in one direction. The axial load is supported by two bearings, so it is used for occasions where the load in one direction is large.
3. Double row angular contact ball bearings
Double row angular contact ball bearings are double row angular contact ball bearings, but occupy less axial space (thickness is slightly narrower than two single row angular contact ball bearings), which can limit the bidirectional axial displacement of the shaft or housing, and the contact angle is 30°. Rigid bearing arrangements are available and can withstand overturning moments. It is widely used in the front wheel hub of the car.
Sealed Angular Contact Ball Bearings
4. Four-point angular contact ball bearing
The four-point contact ball bearing is a single row angular contact ball bearing with separate inner and outer rings. The inner ring is divided into two parts, and one bearing can bear axial loads in two directions.
The contact angle is 35°, and the axial load capacity is large, which is suitable for bearing pure axial load or synthetic load with large axial load. Interchangeable with face-to-face or back-to-back angular contact ball bearings.
5. Thrust angular contact ball bearings
The bidirectional thrust angular contact ball bearing and double row cylindrical roller bearing can bear bidirectional axial load when used together. Divided into 2344 and 2347 series, 2344 series is used for small match with double row cylindrical roller bearing tapered hole, while 2347 is used for large match.
6. Ball screw support bearing
The ball screw support bearing is a one-way thrust angular contact ball bearing with a contact angle of 60°, which is especially suitable for the support of high-speed precision CNC machine tools. Common ones are 7602 (standard metric), 7603 (standard metric), BS (non-standard metric) and BSS (non-standard imperial) series.
Second, the characteristics of angular contact ball bearings
1. Simple structure
The structure and composition of angular contact ball bearings are relatively simple, which are embodied in the following aspects: first, in terms of shape, the shape of angular contact ball bearings is similar to that of deep groove ball bearings. One ring has only one rib, and the other side is a slope; It is the cage of the bearing. The cage of the angular contact ball bearing is solid or stamped, and does not require rivets; it can also be seen from these two aspects that although the structure of the angular contact ball bearing is simple, the strength has not been reduced.
2. High limit speed
The limit speed of angular contact ball bearings is relatively high. Under the same working intensity, the limit speed of angular contact ball bearings can be higher than other types
From the perspective of use, to ensure that the bearing can work reliably, pay attention to the following points:
1. Improve the quality of lubrication, control the pressure, temperature and flow of oil, and strengthen oil filtration.
2. Use fuel and lubricating oil that meet the regulations.
3. It is unfavorable to control the temperature state of the diesel generator set, and it is unfavorable to work under the condition of supercooling and overheating. In cold weather, the diesel engine should be preheated before starting, and the crankshaft should be turned by hand to allow the oil to enter the friction surface.
4. The surface quality and geometry of bearings and journals should be strictly guaranteed.
5. The bearing clearance should be appropriate. If the generator set is too large, it will cause shock. If it is too small, the lubrication will be poor and the tiles may burn.
Air conditioner bearing maintenance:
It is also important to design and manufacture disassembly tools as needed. When dismantling, study the dismantling method, sequence,
Investigate the matching conditions of the bearing to obtain insurance for the disassembly operation.
Removal of the outer ring To remove the outer ring with interference fit, set several screws for the outer ring extrusion screw on the circumference of the outer casing in advance, and tighten the screw evenly while disassembling. These screw holes are usually covered with blind plugs, separable bearings such as tapered roller bearings, and several notches are set on the shoulders of the housing. Use spacers to remove them with a press, or gently tap to remove. The disassembly of the inner ring can be easily pulled out with a press. At this time, pay attention to let the inner ring bear its pulling force.
Furthermore, the pull-out clamps shown are mostly used, and no matter which kind of clamps, they must be firmly clamped on the side of the inner ring. For this reason, it is necessary to consider the size of the shaft shoulder, or study the machining of the upper groove at the shoulder, so as to use the drawing jig. The disassembly of the inner ring of the large bearing adopts the hydraulic method. Oil pressure is applied through the oil hole provided in the bearing to make it easy to pull out. For bearings with large widths, the hydraulic method is used in combination with the pulling jig for disassembly. The inner ring disassembly of cylindrical roller bearings can use the induction heating method. A method of drawing by heating the part in a short time to expand the inner ring. Where a large number of these bearing inner rings need to be installed, the induction heating method is also used.
Car air conditioner bearing is broken
If the bearing of the empty blower is damaged, abnormal noise will be heard in the glove box when the empty blower is turned on. If the bearing is damaged, the bearing can be replaced directly, or the entire fan can be replaced directly. The blower is an important part of the automobile air conditioning system. If there is no blower, the air conditioner outlet will not blow air.
The empty switch is an important comfort configuration in the car. The car air switch can be used for cooling or heating.
When the car air conditioner is cooling, the compressor clutch will be engaged, and the engine will drive the compressor to run.
When the compressor is running, it can continuously compress the refrigerant and transport it to the evaporating box, where the refrigerant continuously expands and absorbs heat, thereby cooling the evaporating box.
Cooling the evaporative box can cool the air blown by the blower, so that the empty air outlet of the car blows cold air.
When the car air conditioner heats up, the high-temperature coolant in the engine will flow through the warm water tank, and the wind from the blower will also pass through the warm water tank, so that the air outlet of the car can be adjusted to blow warm air.
The refrigerant used in the car air is r134a, and the car air needs to be regularly added with refrigerant.
Otherwise, the cooling speed of the car will be slowed down and the cooling effect will be worse.
It is recommended that you regularly add refrigerant and clean the air conditioning system when using the car, otherwise a lot of bacteria will grow in the air conditioning system.
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PLEASE QUOTE ME 8 OF THE F-805951 AND DELIVERY TO OKLAHOMA CITY, OK 73149 THANKS JEANINE
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I want to buy 5,000 pieces of this kind nk15 / 12 excellent quality No. 1 kindly send us the details of the product and the lowest price and quality email
