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Classification of tapered roller bearings

wallpapers Industry 2020-11-20
Tapered roller bearings are separable bearings. Both the inner ring and the outer ring of the bearing have tapered raceways. According to the number of rows installed, this type of bearing is divided into single row, double row and four-row tapered roller bearings. The proportion with angular contact ball bearing, bearing capacity factor, limit deviation factor.
 
Classification of tapered roller bearings
 
Single row tapered roller bearings
 
The single-row tapered roller bearing has an outer ring, and its inner ring and a single tapered roller are surrounded 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 external dimension standards of ISO tapered roller bearings, the outer ring or inner ring assembly of any standard type of tapered roller bearing should be able to be internationalized by replacing the outer ring or inner ring assembly of the same type. The dimensions and tolerances must meet the requirements of ISO492 (GB307), and the cone angle of the outer ring components and the cone diameter of the components must meet the relevant regulations before they can be interchanged.
Generally, the cone angle of the outer ring raceway of a single-row tapered roller bearing is between 10° and 19°, which can simultaneously bear the combined effects of vertical insertion and gradual change. . For bearings with cone resistance, B is added to the back yard, and the cone angle is between 25° and 29°, which can withstand the conversion. , Single-row tapered roller bearings can adjust the size of the gap 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, with a gasket in between. The gap is adjusted by the thickness of the gasket. The thickness of the gasket can also be used to adjust the pre-coupling of double-row tapered roller bearings.
Four-row tapered roller bearings
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 it can withstand radial deformation and a slightly lower limit tilt than a double-row tapered roller bearing. It is mainly used for heavy machinery.
 
Multi-sealed double-row and four-row tapered roller bearings
 
ZWZ multi-sealed double-row and four-row tapered roller bearings, ZWZ provides long-life, multi-sealed double-row and four-row tapered roller bearings. Carry out new personalized bearing design and change the bearing al 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 have an increased life span of 20%-40%; lubricant consumption can be reduced by 80%.

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