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Qaagi - Book of Why

Causes

Effects

you trouble … Common FactorsLeadto Bearing Failure

This article ... the major factorscan leadto bearing failure

several factors(passive) can be caused byBearing failure

a fix for seal failurecausedbearing failure

lack of oil pressurecausesbearing failure

Low oil pressurecan leadto bearing failure

high temperatures which break down the grease(passive) is usually caused byBearing failure

lubrication failure ... our common factorscan leadto bearing failure

orderto preventbearing failure

External contaminationcausesbearing failure

seal failure and loss of lubrication(passive) caused bybearing failure

low oil levelcausingbearing failure

Low oil flowwill causebearing failures

dirt or water contamination(passive) can also be caused byBearing failure

detonation(passive) was ... caused bya bearing failure

heavy contamination of greasecan ... leadto bearing failure

Multiple factorscan contributeto bearing failure

imbalance ... factorscan contributeto bearing failure

the main factorscausingbearing failure

many factors(passive) can be caused byA bearing failure

Contamination Contaminationcausesbearing failures

Contamination of lubricationleadsto bearing failure

contamination during assemblycan ... causebearing failure

insufficient lubrication , contamination , and aged lubricant(passive) caused bybearing failure

some kind of contamination of the lubricating oil(passive) are ... caused bybearing failures

The fish oilcausedbearing failures

Oil pumpwould causebearing failure

oil frothing(passive) caused bybearing failures

wash out oilleadingto bearing failure

Diluted oilwill causebearing failure

contaminating the oilleadingto bearing failure

Oil cokinghad causedbearing failure

the oil ... too coolcausingbearing failure

the oil ... beginto causebearing failure

the oil in the turboleadingto bearing failure

contaminated oil(passive) caused bya bearing failure

filtered out through the oilpotentially preventingbearing failure

if not , gasoline can dilute the engine oilcausingbearing failures

contamination or poor lubrication(passive) caused bybearing failures

into which the fluid pump pilots must be concentric with the pump shaftto preventbearing failure

from improper greasingresultingfrom improper greasing

in very costly direct and secondary damagecan resultin very costly direct and secondary damage

in noise or seizureresultingin noise or seizure

in wheel damage as wellmay resultin wheel damage as well

the hub / drum and wheel to separate from the axle during operation resulting in property damagecould causethe hub / drum and wheel to separate from the axle during operation resulting in property damage

Another Wheel with Media Damage(passive) Caused byAnother Wheel with Media Damage

to : machine downtime expensive repairswill leadto : machine downtime expensive repairs

engine damage in testingcausedengine damage in testing

major damage to the impellercan causemajor damage to the impeller

lamination damagecan causelamination damage

bearings and damage(passive) caused bybearings and damage

additional damage(passive) caused byadditional damage

damage to the diaphragmcausingdamage to the diaphragm

the impeller damage(passive) caused bythe impeller damage

costly and time - consuming shaft damage(passive) caused bycostly and time - consuming shaft damage

in wheel seizingcould have resultedin wheel seizing

The intense heat(passive) caused byThe intense heat

wheel separationcan causewheel separation

to equipment downtime , high maintenance costs and lost productionleadsto equipment downtime , high maintenance costs and lost production

catastrophic damage to equipmentcan causecatastrophic damage to equipment

a loud continuous noise(passive) caused bya loud continuous noise

in damage to the shaft and the shaft assembly had to be changedresultedin damage to the shaft and the shaft assembly had to be changed

lengthy unplanned downtime and potentially damage a machinecan causelengthy unplanned downtime and potentially damage a machine

scoring or heat problemscould causescoring or heat problems

The most common problem(passive) is caused byThe most common problem

the vibration of a wheelmay causethe vibration of a wheel

in a wheel coming offcould resultin a wheel coming off

the wheel to be offset's causingthe wheel to be offset

a wheel and tirecan causea wheel and tire

from improper lubricationresultingfrom improper lubrication

to overcome several common causes of bearing failures - light loads , high speeds - NoWear bearings and componentsDesignedto overcome several common causes of bearing failures - light loads , high speeds - NoWear bearings and components

substantial damage to the gearboxhowever ... will causesubstantial damage to the gearbox

to catastrophic damage to gearboxleadsto catastrophic damage to gearbox

catastrophic damage to your enginecan causecatastrophic damage to your engine

to internal damage to an engineleadsto internal damage to an engine

in other damage such as shaft gallingcan resultin other damage such as shaft galling

in catastrophic damage to the turbinecan resultin catastrophic damage to the turbine

the latches to dig into the tang and damage the inner tubewill causethe latches to dig into the tang and damage the inner tube

to expensive downtimeleadto expensive downtime

the threat of downtime(passive) caused bythe threat of downtime

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