Cylindrical roller bearing

Abstract

The invention discloses a cylindrical roller bearing. The cylindrical roller bearing comprises an outer ring, first cylindrical roller sets, a retainer, an inner ring and a check ring. The outer ring is composed of a first outer ring assembly and a second outer ring assembly which are arranged in parallel. An annular groove is formed between the first outer ring assembly and the second outer ring assembly. The bottom of the groove is of a semi-circular structure. The inner ring is composed of a first inner ring assembly and a second inner ring assembly which are arranged in parallel. The first cylindrical roller sets are arranged between the first outer ring assembly and the first inner ring assembly and between the second outer ring assembly and the second inner ring assembly. Each first cylindrical roller assembly comprises two first cylindrical rollers and a second cylindrical roller, wherein the second cylindrical roller is located between the two first cylindrical rollers, and the length of the second cylindrical roller is greater than that of each first cylindrical roller. The check ring is arranged in the groove. The check ring is of a circular ring structure.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a cylindrical roller bearing. Background technique [0002] Due to its large radial bearing capacity, cylindrical roller bearings are suitable for bearing heavy loads and impact loads. The roll necks, rollers and rolling presses of rolling mills have particularly high requirements for bearings due to the particularity of use. The low cross-section of these bearings allows the use of relatively large roll neck diameters compared to the roll diameter, and their radial load capacity is very high due to the large number of rollers that can be accommodated. And because these bearings can only bear radial loads, these bearings are installed together with deep groove ball bearings or angular contact ball bearings, or tapered roller bearings of radial design or thrust design, and the latter bear axial loads . In the existing cylindrical roller bearing products, the first outer ring assembly and...

AI Technical Summary

Problems solved by technology

In the existing cylindrical roller bearing products, the first outer ring assembly and the second outer ring assembly have middle ribs, but in the bearing manufacturing process, the outer rings are in the process of quenching, grinding, and loading, and the middle ribs will become Crack sources that may cause cracks in the outer ring

In addition, most of the bearing cages are made of copper alloy, but our country lacks copper resources, and the contradiction between production and demand is very prominent.

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