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Use of a lubricant

A technology of lubricants and uses, applied in the application field of lubricants, can solve the problem of not providing lubrication with small oscillating contact, and achieve the effect of low friction

Inactive Publication Date: 2011-10-05
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To date, commercially available greases have not been able to lubricate small oscillating contacts in addition to their long grease life

Method used

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  • Use of a lubricant
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Examples

Experimental program
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Embodiment Construction

[0021] figure 1 Different contact conditions such as between rolling elements and their bearing rings are shown. The stress distribution of the rolling elements on the bearing ring is therefore characterized by a pressure maximum at the contact center of the two mating parts. As a result, friction will be highest at the center of contact and decrease towards the outer contact area where pressure is reduced.

[0022] exist figure 1 In , the horizontal axis represents displacement in μm, and the vertical axis represents wear. The first contact condition is the so-called viscous state R1. Thus, at small displacement amplitudes (very small tangential forces compared to normal loads), the contact is fully accommodated by elastic deformation along the entire contact area without slipping.

[0023] The state R1 is followed by the so-called partial slip state or stick-slip state R2. Introducing a tangential force will show maximum shear stress at the outer annular region and mini...

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Abstract

The present invention relates to a use of a lubricant comprising at least one reaction product of mono-di- and / or poly-isocyanate with unbranched and / or branched, unsaturated and / or saturated, alicyclic poly-amine with carbon numbers from 5 to 24, at least between at least two elements, which are moveable against each other.

Description

field of invention [0001] The invention relates to the application of a lubricant. Background technique [0002] Grease is widely used in the lubrication of bearings and other structural components. An effect known as false brinelling occurs when there is relatively little displacement between the rolling elements and the bearing ring race, so fretting is found in incomplete contact. An effect known as fretting is also found in full contact, for example, fretting involving small amplitude oscillations of the housing interface of its mating surfaces. Friction-corrosion indentation and fretting can cause serious damage. To date, commercially available and in-use greases, especially for rolling bearings, lack protection against fretting and fretting. [0003] One problem of the present invention was therefore to find a lubricant suitable for use between two elements which are movable against each other, so that this element can also be protected against fretting and fretting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/06
CPCC10N2210/02C10N2230/06C10M2203/003C10M2219/066C10M2217/0456C10M2215/12C10N2240/02C10M2201/087C10M2201/08C10M2205/0265C10M2207/0285C10M2215/1026C10M169/06C10M2207/026C10N2210/01C10M2215/08C10M2223/043C10M2223/06C10M2219/06C10M2207/12C10M2215/223C10N2010/02C10N2010/04C10N2030/06C10N2040/02C10M133/16C10M2223/042C10N2010/10C10N2010/12C10N2050/10
Inventor E·马尔姆斯泰特W·霍尔韦格H·L·M·皮克I·斯特兰德尔A·施图本劳赫B·鲍尔F·菲德拉尔斯A·范登科默
Owner AB SKF