The structure and performance features of imported bearings

1, importing the thrust angular contact ball bearings, angular contact ball bearing thrust bearing contact Angle 60 ° commonly used thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings, mainly used for precision machine tool spindle, commonly used together with the double row cylindrical roller bearing, it can be subject to bi-directional load and have high precision, good rigidity, low temperature, high speed, convenient installation. 2, imported bearing deep groove ball bearings on the structure of each ring of deep groove ball bearing have cross section is about the equator of the ball perimeter of a third consecutive raceway groove type. Deep groove ball bearing is mainly used to bear radial load, also can absorb a certain amount of axial load. When bearing radial clearance increases, has the properties of Angle contact ball bearing, can carry alternating axial load in two direction. Compared with other kinds of bearings of the same size, such bearing small friction coefficient, extreme high speed, high precision, is a user selection of the preferred type of bearing. Deep groove ball bearing has simple structure, easy to use, is the production batch is the largest, the most widely application scope of import bearings. 3, importing the thrust tapered roller bearings, bearings as the roller in the thrust tapered roller bearings for tapered roller, the rolling bus bar in the structure and the washer raceway of busbar are concurrent in the bearing axis line at some point, therefore the rolling surface can form pure roll, limit rotational speed is higher than the thrust cylindrical roller bearings. Features: thrust tapered roller bearings can withstand one-way axial load. Thrust tapered roller bearing type code 90000 type. 4, imported bearings of the structure and characteristics of double row circular cone roller bearings of double row tapered roller bearing structure, the maximum is 35000, has a double raceway outer ring and two inner ring, a baffle between the two inner ring, changing the thickness of the baffle can adjust the clearance. This type of bearings in bear radial load at the same time it can be subject to bi-directional load, can be within the scope of the bearing axial clearance limit shaft and the shell axial displacement. The structure characteristics of tapered roller bearing. Tapered roller bearing type code 30000, tapered roller bearing for separating type bearing. Tapered roller bearing is mainly used to bear the joint mainly consisting of radial load and axial load. Compared with the angular contact ball bearing, large carrying capacity, limit rotational speed is low. Tapered roller bearings can withstand axial load in one direction, can limit axial displacement of shaft or housing in one direction.