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Tapered roller bearing
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Tapered roller bearing belong to the separation type bearing, bearing the inner and outer ring have tapered raceway, its inner ring and a set of tapered rollers by the basket-shaped keep frame envelope into an inner ring assembly, the outer ring can be separated from the inner ring assembly, tapered roller bearing between the outer ring and the inner component is 100 percent can be universal interchangeable use, bearing designed to adapt to the combined load, that is, the simultaneous action of radial and axial load, the raceway extension line The extensions of the raceways intersect at the same point on the axis of the bearing to achieve true rolling and therefore low frictional torque during operation. The axial load capacity of tapered roller bearing increases as the contact angle increases. The size of the contact angle is related to the calculation coefficient, the higher the value, the greater the contact angle. Single tapered roller bearing can bear radial load and single direction axial load, axial load capacity depends on the contact angle, namely the outer ring raceway angle, the larger the angle, the greater the axial load capacity. When bearing radial load, will produce an axial force, so when another can bear the opposite direction of the axial force bearing to be balanced, compared with angular contact ball bearing, bearing capacity increased, the limit speed is reduced. Tapered roller bearing use an optimised three-convex design method to find suitable convexity requirements through the simulation of working conditions, thus reducing contact stress and increasing the fatigue life of the bearing; Low friction The optimised roller design on the retaining edge and the surface finish of the retaining edge promote the formation of a lubricant film, thereby reducing friction. This also reduces the amount of heat generated by friction and wear on the baffle edges. In addition, the bearing retain their preload better and reduce noise levels during operation. Long service life The basic design of the bearing and the convex raceway logarithmic raceway shape optimise load distribution along the contact surface, reduce stress peaks at the roller ends and reduce sensitivity to misalignment and shaft deflection. Increased operational reliability Optimised surface treatment of the roller and raceway contact surfaces facilitates the formation of a fluid dynamic pressure lubricant film Consistency of roller profile and dimensions Integrated The manufacturing tolerances and dimensional accuracy of the rollers in tapered roller bearing are so precise that they are almost identical, which provides better load distribution to reduce noise and vibration levels and enables more precise preload. Rigid bearing applications A single row tapered roller bearing usually needs to be adjusted in conjunction with another tapered roller bearing, and by applying a preload, rigid bearing applications can be achieved. Separable and interchangeable This means that the inner ring with roller and cage assembly (inner ring assembly) can be mounted separately from the outer ring. In addition, the separable parts are interchangeable, which facilitates mounting, dismantling and maintenance inspection procedures. |