A single-row tapered roller bearing has an outer ring, an inner ring assembly including a cone-shaped cage and an inner ring and a set of tapered rollers. The outer ring can be separated from the inner ring assembly. According to the ISO size specification of the tapered roller bearing, 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, the outer ring of the same model must meet the requirements of ISO492 (GB307) in addition to the external dimensions and tolerances. The cone angle of the inner ring assembly and the cone diameter of the assembly must also comply with the relevant regulations for interchange.
Generally, the taper angle of the raceway of the outer ring of a single-row tapered roller bearing is between 10° and 19°, and it can simultaneously withstand the combined effect of axial load and radial load. The larger the cone angle, the greater the ability to withstand axial loads. Large cone angle bearings, post-code plus B, cone angle between 25 ° ~ 29 °, it can withstand greater axial load. In addition, single row tapered roller bearings can adjust the clearance during installation.
The outer ring (or inner ring) of a double-row tapered roller bearing is a single body. The two inner rings (or outer rings) have similar small end faces with a spacer in the middle. The clearance is adjusted by the thickness of the spacer ring. The thickness of the spacer ring can also be used to adjust the preload of the double row tapered roller bearing.
Four-row tapered roller bearing, the performance of this type of bearing is basically the same as that of double-row tapered roller bearings, but it has greater radial load than the double-row tapered roller bearing, and its limit speed is slightly lower. It is mainly used for heavy machinery.
With multiple sealed double and four-row tapered roller bearings, ZWZ offers long-life, multi-sealed, four-row tapered roller bearings. Individually designing the bearing, changing the traditional design method of the fully sealed bearing, adopting a new sealing structure combining sealing and dustproof, improving the sealing effect and improving the sealing performance. Compared with open-type bearings, multi-sealed double and four-row tapered roller bearings have a 20% to 40% longer life and a 80% reduction in lubricant consumption.
