1, from
the friction loss point of view, as the bearing material friction
coefficient as small as possible, graphite with excellent steel sleeve
lubrication bearing show wear coefficient;
2,
from the structure, the graphite is a solid material, can be no oil
lubrication, reducing graphite inlaid lubrication bearing less
lubrication system, thereby reducing the failure rate;
3, graphite has high chemical stability;
4,
the price is cheap, versatility; if the metal to do bearings, according
to the graphite bronze bearing you say the situation to operate at high
temperatures, obviously not the ordinary material, with high
temperature strength of the material needs to be customized, the price
is not several times Ten times a hundred times is not necessarily able to do it, the first material is not easy to find.
If
the graphite fell into the reactor pollution products, obviously the
equipment is not done, the transmission structure to be changed.
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