Sliding
bearing occurs when the sliding friction; rolling friction depends on
the size of the manufacturing accuracy; and the size of the sliding
bearing friction depends mainly on the material of the sliding surface
of the bearing. Sliding bearings are generally self-lubricating work surfaces; sliding
bearings in accordance with the material is divided into non-metallic
plain bearings and metal sliding bearings.
Non-metallic
plain bearings mainly plastic bearings, plastic bearings are generally
made of relatively good performance engineering plastics; more
professional manufacturers generally have engineering plastics
self-lubricating modification technology, through the fiber, special
lubricants, glass beads And so on the engineering plastics self-lubricating enhanced
modification to achieve a certain performance, and then re-use of
modified plastic processed into self-lubricating plastic bearings.
Metal
sliding bearing is the most commonly used three-layer composite
bearings, the bearings are generally based on carbon steel substrate,
sintered by sintering a layer of spherical copper powder on the steel,
and then sintered in the copper layer on the layer 0.03mm PTFE lubricant; wherein the middle layer of spherical copper
powder is the main role is to enhance the bonding strength between the
steel and PTFE, of course, also play a role in carrying and lubrication
work;
In
recent years, there are also a number of outstanding small and
medium-sized enterprises emerging in the world's sliding bearing
manufacturing base. The comprehensive strength of large enterprises is
strong. With the development of the sliding bearing industry, the
industry has become more and more subdivided, and the small and medium
enterprises Big business gap.
It
is not difficult to see through the above description, the plastic
bearing and metal sliding bearing the following differences: 1, plastic
bearings are lubricated material as a whole, long service life; and
metal sliding bearing lubrication layer is only 0.003mm surface PTFE,
when this thin The
end of the layer of friction also declare the end of life; 2, the use
of plastic bearings will not occur rust and corrosion-resistant, and
metal rust-prone bearings can not be used in chemical liquid; 3, the
quality of plastic bearings than metal Light,
which is more suitable for the modernization of lightweight design
trends; 4, plastic bearing manufacturing costs lower than the metal;
plastic bearings using injection molding processing is more suitable for
mass production; 5, plastic bearings in operation without any Noise,
has a certain vibration absorption function; As the plastic bearing
metal sliding bearing there are many advantages, the plastic bearing
production is expanding, the use of plastic bearings are also constantly
extending the range of applications, from fitness equipment to office
equipment and the automotive industry Dengjun used plastic bearings, cars on the road without using plastic bearings. Plastic bearings unlimited market prospects!
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