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Bearing system with lubricated exclusion seal

An extrusion type, bearing technology, applied in the direction of lubrication pumps, roller bearings, shafts and bearings, etc., can solve problems such as wear and tear

Active Publication Date: 2016-09-21
LINCOLN INDUSTRIES CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shaft / seal interface creates friction, and thus the frictional resistance on the shaft is related to the pressure of the seal mating shaft
High pressure also causes the seal to wear faster than a seal fitted to a shaft with light pressure

Method used

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  • Bearing system with lubricated exclusion seal
  • Bearing system with lubricated exclusion seal
  • Bearing system with lubricated exclusion seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Now referring to the accompanying drawings, the illustrations are only for the purpose of illustrating the currently preferred embodiments of the present disclosure, not for the purpose of limiting it. figure 1 A housing 10 containing a bearing assembly 12 is shown. The bearing assembly 12 includes an inner ring 14, an outer ring 16 and a plurality of rolling elements 18 between the inner ring 14 and the outer ring 16. The bearing assembly 12 supports a shaft 20 for rotation relative to the housing 10, and the inner seal 22 and the outer seal 24 are sealed in a free volume 26 in the housing, which is completely or substantially filled with lubricant, such as grease. The free volume 26 includes the space in the bearing assembly 12, the area adjacent to the shaft 20, and the area axially away from the bearing assembly 12 and radially away from the shaft 20. The space in the bearing assembly 12 is in contact with the rolling elements 18 and adjacent to the shaft. The grease ...

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PUM

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Abstract

A bearing system includes a bearing housing configured to house a bearing and enclosing a free volume for receiving a lubricant, a bearing, a pump configured to pump lubricant into the free volume, a shaft in an opening in the housing rotatably supported by the bearing, an exclusion seal between the shaft opening and the shaft that is repeatably and non-destructively shiftable from a sealing state in which it substantially prevents lubricant from leaving the free volume and a release state in which it allows lubricant to escape between the exclusion seal and the shaft. The exclusion seal is caused to shift by increasing and decreasing a pressure in the bearing housing, and the system includes a controller configured to repeatedly shift the exclusion seal by raising and lowering the pressure in the free volume to continuously maintain a lubricating film between the exclusion seal and the shaft.

Description

Technical field [0001] The present disclosure relates to a bearing system with a lubricated exclusion seal, in particular a bearing system with a lubricated exclusion seal and a controller, the controller is configured to seal the exclusion seal and the shaft or element that is slidingly fitted by the seal Keep a lubricant film between. Background technique [0002] Automatic lubrication systems are known, which include mechanical dosing components and suction components. These components may be configured to provide a fixed dose of lubricant (grease or lubricating oil or other suitable lubricant, collectively referred to as "grease" hereinafter) at predetermined intervals. The interval and dosage are traditionally set by manually adjusting each of the dosage devices. A lubrication system that provides greater control and more automatic control over lubricant dosage is disclosed in US Patent Application Publication No. 2013 / 0015019A1, entitled "Advanced Lubrication System", whi...

Claims

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Application Information

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IPC IPC(8): F16N7/38F16N29/02F16J15/3204F16C35/04
CPCF16C35/04F16J15/3204F16N7/38F16N29/02F16N2250/04F16N2270/00F16C33/76F16C35/047F16C19/38F16C33/6607F16C33/6625F16N13/00F16N29/04
Inventor P.G.康利J.T.英乔恩格B.S.昂卡弗
Owner LINCOLN INDUSTRIES CORP