Novel double-row tapered bearing based on outer-ring lubrication grooves

Abstract

The invention discloses a novel double-row tapered bearing based on outer-ring lubrication grooves. The novel double-row tapered bearing comprises two outer rings 5 spaced by a middle outer ring spacer 1, and an inner ring 8 sleeved concentrically in the inner part. Two tapered rollers 6 are respectively disposed between the inner ring 8 and one of the outer rings as well as between the inner ring 8 and the other outer ring through cages 7. The novel double-row tapered bearing is characterized in that the end sides contacting the outer ring spacer 1 of the outer rings are respectively provided with an oil groove 3, and the oil grooves lead to the tapered rollers and the cages 7. According to the novel double-row tapered bearing, previous oil holes in outer ring spacers are changed to be in the big-mouth cross sections of the outer rings, and therefore the ring spacer can bear large load and is not liable to break. The oil grooves are milled in the large-mouth end faces of the outer rings in consideration of small stress on the big-mouth end faces of the novel double-row tapered bearing, and therefore lubricating oil can flow into a roller path through the outer-ring oil holes so as to allow sufficient lubrication of the bearing during working and the service lifetime of the bearing is prolonged.

Description

technical field [0001] The invention relates to the technical field of bearings. Background technique [0002] Such as figure 1 As shown, the structure of the double row tapered bearing in the prior art includes the outer rings 5 ​​on both sides separated by the middle outer spacer 1, and the inner ring 8 concentrically socketed inside, the inner ring 8 and the outer rings 5 ​​on both sides The tapered rollers 6 are respectively arranged through the cage 7 . [0003] Wherein, a lubricating oil hole 2 leading to the roller and the cage is provided in the middle of the outer spacer 1 . The problem is that the lubrication holes are farther from the rollers and the lubrication is less effective. Contents of the invention [0004] The invention aims to provide a double-row tapered bearing with good lubricating effect. [0005] In order to achieve the above purpose, the present invention provides a novel double-row tapered bearing based on the outer ring lubrication groove, ...

AI Technical Summary

Problems solved by technology

The problem is that the lubrication holes are farther from the rollers and the lubrication is less effective

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