founded in 1921, has almost 80 years of history

  Not long ago, in Japan, ANA Hotels International president and CEO of Group awarded the 2009 Best Partner sealed angular contact ball bearing  Award for the Japanese Group to inspire the best partner  Group , we follow  bearings distributor in China to understand  won the  Group 2009 Best partner Award .Group Best Partner Award is granted in product quality, delivery time, excellent technical service provider , Bearings bearings for printing machine Group due to the superior quality, delivery time is short, and technology proposed large dump truck support to make  has greatly improved, therefore , N won the  Group's 2009 Best partner Award .
will continue to pursue its best Bearing and services to further improve product reliability and energy consumption by  products for the world to contribute to sustainable development .
founded in 1921, has almost 80 years of history. In addition to the company 's main products has always been a world leader in construction machinery , industrial machinery , and also get involved in high-tech fields of electronic engineering and environmental protection .

Criteria include: price

 According to the BeijingBearings sales company, this is the first time won the North a big cuddle (Beijing) Machine Tool Co., an excellent supplier of the title, this North a big cuddle from 65 vendors participate in the selection,  Corporation is this Accreditation of five times honored suppliers. Criteria include: price, delivery time, delivery quantity accuracy, appearance of the packaging, quality and other aspects of the comprehensive assessment of eight. Since 2010 the company special bearing  Bearings in precision delivery quantity and delivery cycle has received a praise, therefore, the North a big cuddle (Beijing) Company NSK awarded Excellent Supplier Award.
 About  distributor in North China a big cuddle companies, the North a big cuddle (Beijing) Co., Ltd. by the Japan Machine Tool cuddle machine with Beijing First Machine Tool Group thrust ball bearing joint venture, mainly for automobile manufacturing enterprises processing equipment supporting production. 2010 sales of 350 million yuan, the cumulative production of machine tools totaled 540 units.

Currently SKF Solution Factory business includes spindle repair center

Yesterday,bearing distributor in China through the Swedish SKF Group's global video conference was informed yesterday, in France Montigny's SKF Solution Solution program officially opened the factory to run, which is the eleventh in the world SKF Solution Factory, which aims to integrate SKF's five large platform engineering capabilities sealed angular contact ball bearing to better serve our customers and create value.
 Solution Factory opened in France, not only for SKF lay the foundation for regional development super-precision bearing in France, and more importantly, through the use of SKF's knowledge engineering and the five  hundred years of technology platforms, is the customer's development of more reliable, more cost-effective for customers to create a direct value. Currently  Solution Factory business includes spindle repair center, lubrication application  center, SKF Bearings restructuring customized services, repair tools repair services and training services, and will soon be extended to remote condition monitoring and rapid seals customized services.
 France Sales Service Manager Mr. Benoit de Dorlodot  Solution Factory France, spoke on the opening ceremony: "We are very pleased to be able to support the French SKF Group SKF Service Department, established in France, the French SKF Solution Factory, which will likely soon improve productivity and SKF in France to provide customers with product reliability, while providing customers with solutions for the French Ministry of SKF direct benefits. "

The use of the surface layer of the metal melting and re- solidification

Solid state phase transition, by the method of rapidly heating the surface layer part of the surface hardening treatment is called a heat treatment , known as surface hardening . Including flame hardening , high ( in ) frequency induction heating quenching, laser heating or electron beam heating quenching. KOYO bearing characteristics of these methods are: local heating surface hardening , the workpiece deformation ; heating surface profile measurement speed, high production efficiency ; heating time is short, very slight surface oxidation and decarbonization . This method especially for improving the wear resistance to withstand certain impact loads and fatigue strength effects of large and extra large bearing parts significantly .
The use of certain elements into solid state diffusion to change the chemical composition of the metal surface layer , deep groove ball bearings to achieve surface hardening method called chemical heat strengthened, also known as diffusion heat treatment . Including boriding metals , carburizing and carbonitriding , nitriding and nitrocarburizing , sulfide and Sulphonitrocarburizing , Chromizing High speed Spindle , aluminized and chrome aluminum silicon permeation , diffusion  layer graphite , etc. , a wide range of different characteristics . Or dissolved  into the matrix metal element forming a solid solution with other metals or elements  to form compounds. I.e. short change the chemical composition of the elements into the surface layer , and a different phase structure can be obtained . Surface treatment process and carburizing bearing KOYO bearing sleeve nitrided steel parts are enhanced handling this type of fortification .
The use of the surface layer of the metal melting and re- solidification , to give the desired composition of the surface hardening treatment or tissue enhancement technique called surface metallurgy . Including the surface from the insoluble alloy or composite powder coatings, crystalline or amorphous surface melting , surface alloying methods. Deep groove ball bearing is characterized by rapid heating to a high energy density , the surface of the metal layer or metal coating on the surface of the alloying material is melted and then solidified by cooling to obtain their particular structure or particular properties of the reinforcing layer . This particular structure is perhaps the crystal structure refinement , or maybe supersaturated phase , metastable phase , even non- crystal structure , depending on the process parameters and methods of surface metallurgy . Rolling industry in miniature bearing surface enhanced laser heating has done research to good effect.

bearing stick asymmetric spherical roller

Thrust roller bearings for axial load mainly axial , radial joint load , but the radial load should not exceed 55% of the axial load . Other thrust roller bearings, such bearings lower friction coefficient , high speed, and aligning performance .
29000 , bearing stick asymmetric spherical roller , the roller can reduce the relative sliding and rolling  in the work , and the roller length , large diameter roller quantity, high load  capacity, usually oil lubrication individual low speed available greased . In the design selection , should be preferred ;
80000 -type cylindrical roller Wind turbine bearing thrust bearings , 90000 Thrust tapered roller bearings and needle roller thrust bearings AXK type , can withstand a one-way axial load, it is much larger than the thrust ball bearing axial load capacity and rigidity, small axial space occupied .
Thrust cylindrical roller bearings and thrust roller bearings for low speed applications , thrust tapered roller bearing speed slightly higher than the thrust cylindrical roller bearings.
Thrust cylindrical roller automotive bearing bearings  are separable bearings, can withstand axial load and a slight impact, to limit the axial displacement ( or shell ) in one direction , and therefore can be used as a one-way axial positioning . But its carrying capacity is far greater than thrust ball bearings. Roller rolling , because the roller ends of lines at different speeds , so that the rollers in the ring raceway sliding inevitably arise , therefore , such a bearing speed limit lower than the thrust ball bearings , normally only for low speed applications.
Standard design thrust cylindrical roller bearings with machined metal solid cage, according to user requirements , but also other types or materials cage. Thrust tapered roller bearings can withstand axial load, can limit the axial displacement of the bearing , it can be used as a one-way axial positioning . And thrust cylindrical roller bearings compared to carrying capacity, relative sliding is small, but the lower speed limit

strengthen inspection of rolling groove

Tonghua Iron and Steel Group has successfully developed high-speed wire rod production HRB400E
Published :2012 -12-4
November 21 , Shougang Tonghua Iron and Steel Group through high-speed wire rod plant new lines of production HRB400E8 mm rebar 42 99.7 tons , HRB400E8 mm rebar awarded the successful development and production .
It is understood , HRB400E test  seismic reinforcement steel is rolling temperature requirements are very strict, new product development is currently under trial production stage. The production is the fourth rolling plant this year, but also the largest number of rolling , the best one, spinning temperature first drops 900 ℃, changing the spinning temperature is not lower than the previous record of 1000 ℃ for .
In the organization of production vibration measurement process, production department and rolling mill plant personnel to develop a reasonable plan rolled repeatedly revised operating points , the technical personnel at the scene to track the guidance requires workers reasonable control roller speed to ensure open rolling temperature , temperature and spinning into the finishing temperature , strengthen inspection high precision bearing of rolling groove , guide and guard the entrance , timely adjust the size of the finished wire , seismic steel products to ensure customer requirements for dimensional accuracy , quality assurance pruning to ensure end to end water cooling and defective parts are not all clean and trim so storage product quality to meet market and customer needs .
It is reported that the feedback data center sampling technique from watching the indicators uniformity , yield strength and tensile strength are up to quality requirements.

Before installing the bearings should be cleaned

High-speed precision angular contact ball bearings , mainly used for high-speed rotating occasions lighter  loads , requiring high precision bearings , high speed, low vibration and low temperature rise Hydrodynamic Bearing a certain life . Often high-speed spindle support member installed in pairs , is the inner surface grinding spindle speed key component parts .
The main technical indicators:
1 bearing precision index : Over GB/307.1-94 P4 class precision
2 high-speed performance: dmN value 1.3 ~ 1.8x 106 / min
3 life ( average ):> 1500 h
High-speed precision angular contact ball bearing service life of a great relationship with the installation , you should note the following
1 bearing installation should be clean , clean room for the bearing to be carefully matching, bearing  spacers Slewing bearing
  to go through the grind of maintaining high inner and outer ring spacers under the premise of the spacer should be controlled in parallel 1um the following ;
(2) Before installing the bearings should be cleaned , cleaning the inner slope upward , feel should be flexible , no sense of stagnation , dried , placed in a predetermined amount grease, oil mist lubrication should be placed in the case of a small amount of oil mist ;
3 bearing installation tool should be used exclusively , even by force , is strictly prohibited beat ;
4 bearing deposit should be clean and ventilated , non-corrosive gases, relative humidity less than 65% , long-term storage should be periodically rust.