Thrust angular contact ball bearing contact angle is generally 60 ° commonly used thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings, mainly used for precision machine tool spindles, generally used in conjunction with double-row cylindrical roller bearings, can withstand bi-directional axial load, with high precision, good rigidity, low temperature rise, high speed, easy to assemble and dismantle and other advantages.
In the structure of deep groove ball bearings each ring has a cross-section of about one-third of the equatorial circumference of the ball continuous groove type raceway. Deep groove ball bearings are mainly used to withstand radial load, can also withstand a certain amount of axial load. When the radial clearance of the bearing increases, it has the nature of an angular contact ball bearing and can withstand alternating axial loads in both directions. Compared with other types of bearings of the same size, this type of bearing has a small coefficient of friction, high limiting speed and high precision, and is the preferred type of bearing when the user selects the type. Deep groove ball bearing structure is simple, easy to use, is the production batch Z large, application range Z wide class of imported bearings.
Due to the thrust tapered roller bearings in the rolling body for the tapered roller, in the structure of the rolling bus and gasket raceway bus are converging on the axis of the bearing at a certain point, and thus the rolling surface can be formed pure rolling, the limit speed is higher than the thrust cylindrical roller bearings. Characteristics: thrust tapered roller bearings can withstand unidirectional axial load. The type code of thrust tapered roller bearings is 90000 type.
4, imported bearings in the double row tapered roller bearing structure, performance characteristics
Double row tapered roller bearings structure, Z a large number of 35000 type, there is a double raceway outer ring and two inner ring, two inner ring between a spacer, change the thickness of the spacer can adjust the clearance. This kind of bearing in bear radial load at the same time can bear two-way axial load, can be in the bearing axial clearance range to limit the axial displacement of the shaft and shell. Tapered roller bearings structure characteristics. The type code of tapered roller bearings is 30000, tapered roller bearings are separated bearings. Tapered roller bearings are mainly used to bear radial load mainly radial and axial joint load. Compared with angular contact ball bearings, they have large load carrying capacity and low limiting speed. Tapered roller bearings can withstand a direction of the axial load, can limit the shaft or shell a direction of the axial displacement.