Summary: Bearing is the part which will fix and reduce the load coefficient of friction in the machine transportation process....
Bearing
Bearing is the part which will fix and reduce the load coefficient of friction in the machine transportation process. Bearing is an important part in modern mechanical machines. Its main function is to support machine rotating body and to reduce the load coefficient of friction in working process. There are four sets of bearings on the jaw crusher. There are two sets of bearings between eccentric shaft and moving jaw. Also, there are two sets of bearings between eccentric shaft and frame work.
Depending on the difference of motion components friction properties, bearing can be divided into rolling bearing and sliding bearing. Large scale or medium jaw crusher machine generally adopt the cast with Babbit of the sliding bearing and it will bear larger impact load and it is more wear-resisting. But it has low transmission efficiency and it needs to have forced lubrication. Small scale jaw crusher machine adopts the rolling bearing. It has high transmission efficiency and is convenient to maintain. But it has less ability to bear impact power.
CounterWeight
The counterweight on the flywheel and sheave mainly balances the eccentric shaft weight and stores energy. In general, the counterweight will be fixed by screw.
Lubricating Device
Among jaw crushers on the market, we can see that there are manual lubrication and centralized hydraulic lubrication.
The Labyrinth Seal
The aim of bearing seal is to prevent the bearing parts inside lubrication oil outleakage. It is used to prevent outside dust, water, foreign matter and harmful substances from entering the bearing.
The labyrinth seal is a structure that sets several labyrinth rings around the spindle. A series of sealing gaps and cavities will form between the teeth. It prevents leakage as the sealing medium passes through the tortuous labyrinth path.
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