Reassembled double-row full-complement tapered roller bearing

Abstract

The roller bearing comprises an outer ring, two inner rings, tapered rollers and a metal sealing check ring, an annular convex cone is designed on the inner side of the outer ring, the two inner rings are the left inner ring and the right inner ring respectively, annular roller paths inclining inwards are designed on the outer sides of the left inner ring and the right inner ring respectively, and the outer side of the outer ring is provided with an annular convex cone; tapered rollers are filled between the outer ring and the left inner ring as well as between the outer ring and the right inner ring; metal sealing check rings are mounted on two sides between the outer ring and the left inner ring as well as between the outer ring and the right inner ring; and the outer ring and the metal sealing check ring are fixedly mounted together through a check ring for a hole. The invention has the advantages that the design is ingenious, the structure is compact, the two groups of relatively inclined full complement tapered rollers do not use a retainer, and the assembly quantity is maximized, so that the maximum load bearing capacity is realized; the position of the inner ring can be kept through the hole check ring and the metal sealing check ring, and it is guaranteed that the double-row full-complement tapered roller bearing cannot be separated before installation; and meanwhile, good sealing of the roller bearing is realized.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a heavy double-row full complement tapered roller bearing. Background technique [0002] The outer ring of the roller bearing adopts a full complement cylindrical roller bearing with a thicker outer ring wall. The outer diameter surface of the roller has a cylindrical shape and an arc shape, which can be designed to match the raceway surface according to the application occasion. With this outer ring, the roller can roll directly on the raceway and can withstand heavy loads and shock loads. [0003] Several shortcomings of previous roller bearing products: [0004] 1. The cylindrical roller structure is adopted, and the axial force it bears is very small. When bearing the axial force, the roller and the rib of the inner ring are sliding friction. [0005] 2. The material of the outer ring is carburized steel. After carburizing and quenching, there are only high hardness layers and low h...

AI Technical Summary

Problems solved by technology

[0005] 2. The material of the outer ring is carburized steel. After carburizing and quenching, there are only high hardness layers and low hardness areas, and there is no hardness transition area. The hardness changes abruptly from high hardness to low hardness, and it is easy to break under the impact of working conditions.

[0006] 3. For the outer ring material, the carburized high-hardness layer of carburized steel is generally about 2.0mm. If you want to achieve the hardened layer of carbon steel, the cost of heat treatment will double

Images