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Classification of tapered roller bearings

wallpapers News 2021-09-17
Classification of tapered roller bearings
Tapered roller bearings can be divided into single-row tapered roller bearings, double-row tapered roller bearings, four-row tapered roller bearings, and multi-sealed double- and four-row tapered roller bearings.
Single row tapered roller bearings
The single row tapered roller bearing has an outer ring, its inner ring and a set of tapered rollers are enclosed by a basket-shaped cage to form an inner ring assembly. The outer ring can be separated from the inner ring assembly. According to the ISO tapered roller bearing external dimension standard, any standard type of tapered roller bearing outer ring or inner ring assembly should be able to achieve internationality with the same type of outer ring or inner ring assembly exchange. That is to say, in addition to the external dimensions and tolerances of the outer ring of the same model, which must meet the requirements of ISO492 (GB307), the cone angle of the inner ring component and the diameter of the component cone must also comply with the relevant regulations for interchange.
Generally, the tapered angle of the outer ring raceway of a single-row tapered roller bearing is between 10° and 19°, which can bear the combined action of axial load and radial load at the same time. The larger the cone angle, the greater the ability to withstand axial load. Bearings with large taper angles are coded with B in the rear, and the taper angle is between 25° and 29°, which can bear larger axial loads. In addition, single-row tapered roller bearings can adjust the size of the clearance during the installation process.
Double row tapered roller bearings
The outer ring (or inner ring) of a double-row tapered roller bearing is a whole. The small end faces of the two inner rings (or outer rings) are similar, and there is a spacer in the middle. The clearance is adjusted by the thickness of the spacer. The thickness of the spacer can also be used to adjust the pre-interference of the double-row tapered roller bearing.
Four-row tapered roller bearings
The performance of this type of bearing is basically the same as that of a double-row tapered roller bearing, but the radial load is greater than that of a double-row tapered roller bearing, and the limit speed is slightly lower. It is mainly used for heavy machinery.
Multi-sealed double and four-row tapered roller bearings
Spark Bearing provides long-life, multi-sealed double and four-row tapered roller bearings. Carry out a new and personalized design of the bearing, change the traditional design method of fully sealed bearings, and adopt a new type of sealing structure that combines sealing and dust-prevention to improve the sealing effect and improve the sealing performance. Compared with open structure bearings, multi-sealed double and four-row tapered roller bearings can increase their life by 20% to 40%, and reduce lubricant consumption by 80 %.


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