Double row tapered roller bearings and four row tapered roller bearings belong to rolling bearings, the difference lies in the structure and application occasions.
The structure of double row tapered roller bearing is composed of two outer rings, two inner rings and a group of rollers, wherein the rollers are arranged in double rows. The fault tolerance rate is high, the bearing capacity is large, and it is suitable for the occasion of radial and axial load at the same time.
The structure of four row tapered roller bearings is composed of four outer rings, four inner rings and a group of rollers, which are arranged into four rows, its density, bearing capacity is more powerful than double row tapered roller bearings, suitable for bearing greater radial and axial loads.
Double row tapered roller bearings are mainly used in automobiles, machine tools, light machinery and other applications, while four row tapered roller bearings are suitable for metallurgy, mining, cranes, ships and other heavy machinery and equipment applications.
In addition to the differences in the number and structure of rollers, there are also some differences in installation and maintenance between double row tapered roller bearings and four row tapered roller bearings. Because of the more complex structure of four row tapered roller bearings, more care is needed in installation and maintenance.
The use advantages of double row tapered roller bearings and four row tapered roller bearings are as follows:
Strong load capacity: double row tapered roller bearings and four row tapered roller bearings are able to withstand larger radial and axial loads, because of their large number of rollers and large bearing capacity.
A wide range of applications: double row tapered roller bearings and four row tapered roller bearings are suitable for many industrial applications and various types of mechanical equipment, such as heavy and light machine tools, steel, cement, chemical, petroleum and mining industries, automobiles, etc.
Smooth rotation: double row tapered roller bearings and four row tapered roller bearings have no internal radius, forming a more stable rotation.
Long life: Both kinds of bearing structures are made of high-quality materials and adopt advanced production technology and process, so their life is often longer than other types of bearings.
Easy maintenance: These two kinds of bearings are simple in design, easy to install and maintain, and therefore more convenient in terms of use and maintenance.