In June 2009, Dalian Cement Group’s hammer crusher experienced frequent overheating, which resulted in multiple bearing failures. In an effort to improve equipment reliability, the company approached ExxonMobil to identify a lubricant solution capable of operating in extreme temperatures.
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Hammer crusher failure and exclusion: 1, bearing overheating … cleaning bearings; replacement … N 132X4, WRB Roller Bearing Jaw Crusher, … overheat temperature of gyratory crusher crusher machine
After transitioning to Mobilith SHC 100, the bearings in the hammer crusher no longer experienced overheating problems, which significantly reduced the level of failures and related unscheduled downtime. This resulted in an annual saving of $153,000 and enhanced safety by reducing employee-equipment interaction*.
The bearing temperature excursion is a classical symptom of overgreasing, wherein the bearing acts as an inefficient pump, creating a lot of heat just moving the grease around until enough grease leaks out enough so the bearing is no longer overgreased. The usual cause of overgreasing is pumping until grease leaks out somewhere.
A hammer mill grinder is one element of the agricultural process that produces large amounts of dust. A bucket elevator is another one, partly because the material moves around. It can also cause ignition because the bearings can overheat. In addition to hammer mill material handling, dust can accumulate in other grain processes in agriculture.
After transitioning to Mobilith SHC 100 synthetic grease, the hammer crusher bearings no longer experienced overheating problems, which solved the bearing failure problems and reduced related unscheduled downtime, resulting in a company-estimated annual savings of US $153,000.
The bearings heat up from about 104 degrees F to around 165 degrees F for about two days after relubri ion and then return to normal 104 degrees F conditions for the rest of the month. Will a vent help?& 34; The issue of overheating is related to fluid friction, which is a result of fluid churning.