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Grease composition

A technology of lubricating grease composition and urea compound, which is applied in the direction of lubricating composition, base material, thickener, etc., can solve the problems of not being able to deal with peeling, not preventing it, etc., and achieve the purpose of inhibiting white layer peeling, prolonging bearing lubrication life, prolonging Effect of peel life

Active Publication Date: 2016-04-13
KYODO YUSHI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0012] However, none of these is a method for preventing the effect of hydrogen generation, that is, preventing the intrusion of hydrogen into the metal, and cannot cope with peeling after hydrogen generation.

Method used

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  • Grease composition
  • Grease composition
  • Grease composition

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Experimental program
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Effect test

Embodiment

[0127]

[0128] · Preparation of test grease

[0129] Base grease is obtained by reacting diphenylmethane diisocyanate with a specified amount of amines (octylamine, cyclohexylamine, octadecylamine, p-toluidine) in base oil, adding base oil and additives, Grinding treatment was performed so that the mixing consistency was 280 (JIS K2220), and a grease was prepared.

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Abstract

The present invention provides a grease composition which contains a base oil, a thickening agent and an anti-flaking additive such as a compound represented by, for example, formula (1-1), and which suppresses white layer flaking in a rolling bearing. (In the formula, R1 and R4 are each independently a straight chain or branched chain alkyl or alkenyl group having 1-20 carbon atoms.)

Description

technical field [0001] The present invention relates to a grease composition for suppressing white layer exfoliation of rolling bearings. Background technique [0002] Responding to the demand for smaller, lighter and more usable space in automobiles, it is necessary to reduce the space in the engine compartment. Along with this demand, electrical appliances such as alternators and tensioners, and auxiliary parts are also required to be smaller and lighter. In addition, the engine room is sealed for quietness, and the operating environment becomes high temperature. Therefore, a grease that can withstand high temperature is required. [0003] In addition, in order to reduce the diameter of the pulley, increase the transmission torque, and improve the durability of the belt, since the mid-1980s, multi-V belts have been gradually adopted. Since then, there have been occurrences on the rolling surface of rolling bearings. Specific early abnormal peeling problem with white tissu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M135/04C10M135/06C10M135/22C10M135/28C10M135/34C10M135/36C10M169/00C10M169/04C10M169/06C10M101/02C10M105/18C10M105/32C10M115/08C10N30/00C10N40/02C10N50/10
CPCC10M135/36C10M2215/1026C10M2219/022C10M2219/024C10M2219/082C10M2219/086C10M2219/102C10M2219/106C10N2030/06C10N2040/02C10N2050/10C10M101/02C10M105/04C10M105/18C10M105/42C10M115/08C10M135/04C10M135/06C10M169/00
Inventor 吉成照小森谷智延广冈岩树武藤正誉中泽圣福岛由伦森诚之
Owner KYODO YUSHI CO LTD
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