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 machine. 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.
The counter weight on the flywheel and sheave is mainly to balance the eccentric shaft weight and then it will store energy. In general, the counter weight will be fixed by screw.
From the market jaw crusher machine, we can find that there is handling 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 the outside dust, water, foreign matter and harmful materials enter into the bearing part.
The labyrinth seal refers to that set several lined ring seal teeth around the spindle. There will form a series of river closure gap and the cavity expansion between teeth and teeth. It will stop leakage by the seal medium in the process of getting through the winding maze.