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轴承故障原因百分比分析

Bearing FailurePercentages Did you know that over 60% of bearingfailures are due to Poor Fiting, Poor Lubrication or Contamination? Only 34% ofbearings ever see their Fatique limit and ‘wear out’.Are you taking all the correct measures to ensure you too do not get caughtwith downtime due to bearing failure?Maintenance Matters!Below is a link to a very interesting article on theimportance of maintenance on machines and plant focused around the costassociated with bearing failures.
Polyamide cages deliver stiffness, flexibility and oil resistance in ball be

Polyamide cagesdeliver stiffness, flexibility and oil resistance in ball bearings Polyamide (PA) is playing a key role inenhancing fuel economy through its usage as cage material for tandem pinionball bearings in passenger car axles including the one in the 2013 Ford C520Escape. The 30% glass fiber-reinforced grade Stanyl TW200F6 PA46 from DSMEngineering Plastics (Birmingham, MI) contributes to a 1.5% saving in fuelconsumption compared with an all-steel tapered roller bearings. Polyamide cages facilitate design ofenergy-efficient auto bearingsIn total, four Ford vehicles, twoChrysler vehicles and GM’s Cadillac ATS utilize the injection-molded bearings,with GM also planning to use them on truck axles and differentials starting inthe spring of 2013. The tandem ball bearings are manufactured by SchaefflerTechnologies (He
滚子轴承材料选择导引

A guide tomaterial selection for rolling bearings By offering a wide choice of materialsand heat treatments for rolling bearings, performance and operating life can beoptimised, even for the most demanding industrial applications, says Dr SteveLacey, Engineering Manager at Schaeffler UK.In recent years, there has been asignificant increase in the demand for rolling bearings that, even underextreme operating conditions – including lubricant starvation, highly corrosiveor high temperature environments – still provide a long operating life andoptimum performance.But selecting a suitable material orheat treatment process for rolling bearings often requires expert advice and guidance,normally from the manufacturer of the bearings. Selection depends on theapplication itself and the specific environment in which the bearing
Surface engineering combats friction and wear

Surfaceengineering combats friction and wear Working together with recognized leadersin advanced coatings and surface treatments has enabled Barden to providespecialized Surface Engineering Technology in support of the most demandingapplications for precision bearings. Gary Hughes, Product Engineering Managerat The Barden Corporation, outlines the latest developments.Engineering surfaces are neitherperfectly flat, smooth nor clean. therefore, in terms of rolling bearings, whentwo surfaces come into contact, only a very small percentage of the apparentsurface area is actually supporting the load. This can often result in highcontact stresses, which lead to increased friction and wear of the component.Surface engineering is the design andmodification of a surface and substrate in combination to give cost effectiveperform
Premature bearing failures in wind gearboxes and white etching cracks

Premature bearingfailures in wind gearboxes and white etching cracks (WEC)Wind turbine gearboxes are subjected toa wide variety of operating conditions, some of which may push the bearingsbeyond their limits. Damage may be done to the bearings, resulting in aspecific premature failure mode known as white etching cracks (WEC), sometimescalled brittle, short-life, early, abnormal or white structured flaking (WSF).Measures to make the bearings more robust in these operating conditions arediscussed in this article.Ambitious worldwide renewableenergy targets are pushing wind energy to become a mainstream power source. Forexample, the Global Wind Energy Council, GWEC1, expects that thecurrently installed wind energy capacity of 200 GW will double within three tofour years, keeping open the aspirational goal of 1,000 GW of
识别和纠正引起轴承故障的原因

Identifying andcorrecting the causes of bearing failureIdentifying andanalysing the root cause of a bearing failure is critical in order to preventsimilar failures from occuring again. Brian Williams, Quality Director at TheBarden Corporation, urges companies to introduce a regime that enables thesymptoms of bearing damage to be recognised early, as well as putting asystematic procedure in place for securing damaged bearings.Many bearings that fail are removed andreplaced too quickly without sufficient levels of analysis into what causedtheir failure. This means that similar failures could occur again, resulting infurther damage and costly unscheduled downtime.Examination of the failure mode oftenreveals the true cause of bearing failure, but this procedure is complicated bythe fact that one failure mode may initiate a