博文

目前显示的是 八月, 2020的博文

cross roller bearing

 Cross roller bearing, because the divided inner ring or outer ring is fixed with the cross roller ring after the rollers and spacers are installed to prevent separation from each other, so operate when installing the cross roller ring simple. Since the rollers are arranged in a cross, only one set of cross roller rings can bear loads in all directions. Compared with the conventional model, the rigidity is increased by 3 to 4 times. At the same time, because the inner ring or outer ring of the cross roller bearing has a two-part structure, the bearing clearance can be adjusted, and even if preload is applied, high-precision rotational movement can be obtained. http://www.zysbearing.com/precision-bearings/cross-roller-bearings.html

slewing bearing

The slewing bearing is a large bearing that can withstand comprehensive loads, and can simultaneously withstand large axial and radial loads and overturning moments. Slewing ring bearings are generally equipped with mounting holes, internal gears or external gears, lubricating oil holes and sealing devices, which can make the host design compact, easy to guide, and easy to maintain. Slewing ring bearings have four-point contact ball bearings without gears, external gears and internal gears, double-row angular contact ball bearings, crossed cylindrical roller bearings, crossed tapered roller bearings and three-row cylindrical roller composite bearings. Series, four-point contact ball bearings have higher static load capacity, crossed cylindrical rollers have higher dynamic load capacity, and the pre-interference of crossed tapered roller bearings enable the bearings to have greater support rigidity and rotation accuracy. The three-row cylindrical roller combined bearing leads to the hei...

one way bearing

 A one-way bearing is a kind of bearing that can rotate freely in one direction and lock in the other direction. One-way bearings are also called overrunning clutches, but they are named according to different industries and different functions. The metal shell of a one-way bearing contains a lot of rollers, needles or balls, and the shape of the rolling seat (cavity) makes it only roll in one direction, and it will produce a lot of resistance in the other direction ( The so-called "one-way"). Technical Principle: A one-way bearing is a kind of bearing that can rotate freely in one direction and lock in the other direction. The metal shell of a one-way bearing contains a lot of rollers, needles or balls, and the shape of its rolling seat (cavity) makes it only roll in one direction, and it will produce a lot of resistance in the other direction. http://www.zysbearing.com/one-way-bearings/

Four-point contact ball bearing

 Four-point contact ball bearing is a separable bearing, or a set of angular contact ball bearings that can bear bidirectional axial load. The inner and outer ring raceways are peach-shaped sections. When there is no load or pure radial load, the steel ball and the ring appear as four-point contact, which is also the origin of this name. When only the pure axial load acts, the steel ball and the ferrule become two-point contact, which can bear the bidirectional axial load. Four-point contact ball bearings can also Bearing moment load, it has the functions of single row angular contact ball bearing and double row angular contact ball bearing. Four-point contact ball bearings can only ensure normal operation when they form two-point contact. Therefore, it is generally suitable for those occasions where there is two-point contact under pure axial load or synthetic load with large axial load. The four-point contact ball bearing has a high limit speed and is also suitable for those high...

China Bearing Import and Export Analysis from January to June in 2020

  1.  Bearing export Overall situation of bearing exports  in China In June 2020, bearing exports  in China  earned US$353 million, a month-on-month decrease of 2.19%, a year-on-year decrease of 23.27% from June last year . Compared with the previous month's year-on-year drop (-14.8%) , it expanded by 8.47%. The export volume of bearings is 422 million sets, a month-on-month increase of 4.77%, and a year-on-year decrease of 16.68% from last June. Compared with the previous month's year-on-year drop (-15.1%) , it expanded by 1.58%.  As of June 2020, a total...