Bearing

A technology for bearings and outer rings of bearings, applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems that affect flight safety, reduce transmission performance, and high DN values

Active Publication Date: 2012-05-02
CHINA AVIATION POWER MACHINE INST
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Ordinary high-speed light-load bearings have a high DN value (DN represents the product of the bearing diameter and the bearing speed) and low load. In order to facilitate the high-speed rotation of the bearing, the tolerance between the outer ring of the bearing and the bearing seat is usually sma

Method used

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Embodiment Construction

[0013] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0014] Such as figure 1 As shown, the bearing of the embodiment of the present invention is a cylindrical roller bearing, including a bearing outer ring 1 , a cage 2 , rolling elements 3 , and a bearing inner ring 4 .

[0015] Such as figure 2 As shown, the inner raceway surface of the bearing outer ring 1 includes a plurality of protrusions 11 protruding inwardly of the bearing outer ring 1 , and the plurality of protrusions 11 are connected in sequence, and the connection between two adjacent protrusions 11 A recess 12 is formed. There are three protrusions, and the three protrusions are evenly distributed on the inner raceway surface along the circumferential direction of the bearing out...

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Abstract

The invention relates to a bearing comprising an outer bearing ring (1), a rolling body (3) and an inner bearing ring (4). The bearing is structurally characterized in that the inner rackway surface of the outer bearing ring (1) comprises a plurality of bulges (11) protruding towards the inner side of the outer bearing ring (1), the bulges (11) are connected in sequence, and a concave part (12) is formed at a connecting part of every two adjacent bulges (11). The bearing is used for ensuring that the matching surface between the outer bearing ring and a bearing saddle bore is not easy to slip under the working condition of high-speed light load, and the rotation performance of the bearing is ensured, thus, the service life of the bearing is prolonged.

Description

technical field [0001] The invention relates to a bearing, in particular to a three-lobe wave bearing applied at high speed and light load. Background technique [0002] Ordinary high-speed light-load bearings have a high DN value (DN represents the product of the bearing diameter and the bearing speed) and low load. In order to facilitate the high-speed rotation of the bearing, the tolerance between the outer ring of the bearing and the bearing seat is usually small, so it is used for a period of time. After a period of time, the outer ring of the bearing and the bearing seat often slip, which will damage the bearing and the bearing seat, seriously reduce the transmission performance, especially in the transmission of the aero-engine, and even affect flight safety. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a bearing that is not easy to slip between the outer ring of the bearing and the bearing seat under h...

Claims

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Application Information

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IPC IPC(8): F16C33/58
Inventor 肖传智李概奇成本林
Owner CHINA AVIATION POWER MACHINE INST
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