In pressure crushers, high beginning up force, shock burdens and vibration
request high-performing hostile to rubbing bearings that can work dependably with
negligible warmth age.
Most tasks lean toward jaw crushers for essential squashing. A huge feed
opening permits these crushers to get bigger measured material than most
different kinds of machines. Bearing velocities and burdens are by and large moderate,
be that as it may, every so often, the heap spikes as uncrushable material goes through
In a run of the mill jaw crusher, twochina Crusher bearingexternal bearings situated on one or the other side of the
principle outline support an unconventional shaft, while two internal bearings support
a versatile jaw. These are normally known as “Pitman” bearings. The
responding movement of the shaft moves the Pitman against a second,
fixed jaw. As material arrives at the lower part of the chamber, it breaks
as it becomes wedged between the jaws. Jaw crushers normally use
round roller bearings, picked for their capacity to oversee high outspread burdens
what’s more, the presence of misalignment. Circular roller bearings self-adjust and
accordingly better make up for shaft diversions and seat misalignment.
Cone or gyratory crushers utilize an assortment of particular bearings explicitly
intended for each model. Like jaw crushers, these machines – normal in
essential, optional and tertiary squashing circuits – additionally work at moderate
speeds under substantial loads and experience critical burden spikes. In a
standard cone crusher, the primary shaft is housed in a casing appended to a
mantle. A pinion (counter) shaft gathering drives an angle gear that pivots
the cone. As material presses against the bowl liner by the mantle or cone, it
is squashed into more modest pieces that fall through to the base.
Most cone crushers have two outspread bearings and two hub bearings.
The outspread bearings are most regularly uncommon barrel shaped roller bearing
plans, including two rollers for each pocket with varying roller lengths. The
pivotal bearings commonly consolidate a tightened push bearing and tube shaped
High shock loads and serious tainting make rock and total crushers
among the hardest applications for exactness segments – especially
roller bearings. The unforgiving conditions in which crushers work present
a major test to bearing execution and present a steady danger to
long, solid hardware life. Keeping machine accessibility high and costof-possession low in these conditions requires a guarantee to legitimate
care, including routine examination and re-oil of roller bearings in
pressure and effect crushers. Knowing the normal kinds of bearings
utilized in squashing hardware can help administrators and upkeep
Auxiliary pulverizing circuits usually use hammer factories and vertical
also, even effect crushers and experience high-rotational paces and
variable stacking conditions. They will in general utilize round roller bearings for
adaptability and to oblige misalignment.
In hammer factories and flat crushers, round roller bearings in strong
or then again split pad block lodgings for the most part support the impactor shaft on both
sides. Round roller bearings are a typical decision in view of their capacity
to deal with the mix of outspread loads and shaft misalignment that
happens during pulverizing. Pad blocks shield bearings from pollutants
furthermore, offer help for the bearing during the crusher activity. Pad
block bearings are frequently greased up. The oil gives grease to the
bearing and a layer of security for outside tainting.
Better Bearing Care
In the event that administrators should often supplant harmed bearings or suspect they
essentially are not getting the life out of their bearings that they anticipate, a couple
straightforward strides to follow and alternatives to investigate can work on the exhibition
also, uptime of machines in squashing circuits.
Helpless oil is a main source of bearing disappointment in generally mechanical
applications, including crushers. An appropriate re-grease plan is basic to
keep up with proper bearing working temperatures, which influence ointment
thickness and life. When in doubt, an ointment ought to keep a base
thickness of 105 SUS (21.8 cSt) at the bearing working temperature.
As a rule, the Original EOEM teams up with the bearing
producer to foster a suggested re-grease plan.
Administrators and maintainers ought to follow the OEM re-oil plan
to assist with boosting the bearing life. They likewise should take further consideration not to
over grease up bearings. In oil frameworks, over-lubing can
lead to extreme warmth age from ointment stirring. The unreasonable
heat separates the grease and can cause untimely bearing disappointment.
Blending various lubes or different oils ought to likewise be stayed away from, as this
can bring about breakdowns and may cause untimely disappointment. To guarantee that
re-grease rehearses stay on point, one call to a certified master can
save hours – or days – of unscheduled personal time.