What are the product types of tapered roller bearings?

Single row tapered roller bearings have an outer ring, an inner ring and a set of tapered rollers enclosed by a basket-shaped cage into 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 international compatibility with the same type of outer ring or inner ring assembly. exchange. That is to say, the outer dimensions and tolerances of the same type of outer ring must comply with the provisions of ISO492 (GB307), and the cone angle of the inner ring components, the diameter of the cone of the components, etc. must also comply with the relevant regulations for interchangeability.

Usually, the taper angle of the outer ring raceway of a single row tapered roller bearing is before 10°~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 loads. For bearings with a large cone angle, add B to the post code, and the cone angle is between 25° and 29°, which can withstand large axial loads. In addition, single row tapered roller bearings can adjust the size of the clearance during installation.

The outer ring (or inner ring) of 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, and the pre-interference of the double row tapered roller bearing can also be adjusted by the thickness of the spacer.

Four-row tapered roller bearings, the performance of this type of bearing is basically the same as that of double-row tapered roller bearings, but it bears a larger radial load than double-row tapered roller bearings, and the limit speed is slightly lower. It is mainly used for heavy machinery, such as rolling mill etc.

Multi-sealed double and four-row tapered roller bearings, ZWZ provides long-life, multi-sealed double and four-row tapered roller bearings. Carry out a new personalized design for the bearing, change the traditional design method of the fully sealed bearing, and adopt a new type of sealing structure combining sealing and dustproof to improve the sealing effect and performance. Compared with open structure bearings, multi-sealed double and four-row tapered roller bearings have a 20% to 40% increase in life and 80% reduction in lubricant consumption.

Tapered roller bearings refer to radial thrust rolling bearings whose rolling elements are tapered rollers. There are two kinds of small cone angle and large cone angle. The small cone angle mainly bears the combined radial and axial loads dominated by radial loads. It is often used in pairs and installed in reverse. The inner and outer races can be installed separately, and the radial and axial clearances can be adjusted during installation and use; The large cone angle mainly bears the combined axial and radial loads, which are mainly axial loads. Generally, it is not used to bear pure axial loads alone, but can be used to bear pure radial loads when arranged in pairs (the ends with the same name are installed opposite to each other).