Full type roller bearing

Abstract

The invention relates to a full type roller bearing. The full type roller bearing comprises two internal rings, external rings, sealing covers and a plurality of rollers, wherein the two internal rings are in butt joint with each other; the external rings are arranged outside the internal rings; a double-row roller path matched with the rollers is formed between the internal rings and the external rings; two end faces of the double-row roller path are provided with one sealing cover respectively; the plurality of rollers are arranged in the roller path uniformly according to a gap; the gap between every two rollers is 0.01 to 0.03 mm; and self-locking structures of the rollers are formed in the double-row roller path. The full type roller bearing has the advantages that: the gap between every two rollers is only 0.01 to 0.03 mm; the gap by which the next roller can push and drive the previous roller to rotate is ensured; large gaps among all the rollers are eliminated; and the structural bearing eliminates the impact sound among the rollers completely, so a first noise source of larger noise of the bearing can be eliminated; and a metal dust cover and rubber sealing combined structure is adopted, so the sealing property is high and the metal impact sound which is caused by that the metal dust cover moves to touch the internal and external rings can be avoided.

Description

technical field [0001] The invention relates to a bearing, in particular to a full roller bearing. Background technique [0002] Such as figure 1 , No cage full roller bearings have the ability to withstand heavy radial loads, especially suitable for driving, cranes, and port machinery for lifting heavy machinery or mechanical parts. The law of motion of this kind of bearing is that when the ferrule drives the rollers to rotate, the latter roller follows and pushes the previous roller to rotate, so there is inevitable collision sound between rollers and rollers. Therefore, it is called a full roller bearing. As the name implies, the bearing should be filled with rollers one by one in the raceway, but in general design, there is still a gap of 1.5 to 2 rollers in the entire raceway. Therefore, in addition to the slight sound of adjacent rollers pushing the rollers during operation, there may also be an impact sound between one or two rollers. One big flaw. [0003] Bearin...

AI Technical Summary

Problems solved by technology

[0003] Bearings imported from abroad are slightly quieter. Due to the large deformation of the material in China, the roller rotates to the apex and then hits a larger distance and the sound is very loud. As a result, the heavy industry machinery industry dare not use domestic bearings.

At the same time, because this type of bearing is exposed to the harsh environment of wind, rain, and dust in the air for a long time, and the crane series bearings do not use oil grooves, oil holes, or oil lubrication systems, but a lifetime lubrication system, it is required to have good anti-corrosion protection. Dust and oil-proof effect, so the bearing adopts double sealing device, but domestic bearings have poor anti-deformation ability due to the material, when the bearing bears a large load F, the deformation of the ferrule causes the deformation of the sealing cover, and the grease is easy to overflow, that is, the bearing is dust-proof and oil-proof. The effect is poor, which is why heavy industry machinery dare not use domestic bearings

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