plastic bearings
plastic bearings
Author :Admin | Publish Date:2013-04-28 11:07:01
Many times a bearing is mounted into another part, such as a plastic
pulley, sprocket, wheel or a mounted block. Utilizing the design concept of a
plastic bearings, KMS Bearings, Inc., can integrate the mating component as the
raceway of the bearing, ie: pulley as the outer
ring, or the shaft as the inner ring. The end result is fewer parts, reduced
assembly time, and overall lower cost.
For an example of actual integrated plastic race ball bearings click on
special bearings and for an animated graphic of product integrating click on
design flexibility.
plastic bearings become completely non magnetic when fitted with either
polymer, glass, or non magnetic 316 stainless balls. They are ideal for use
where there can be no magnetic distortion.
[plastic
bearings] are naturally clean because they do not corrode or require
lubrication. They are ideal for wash down applications and clean room
environments. Plastics have the inherent ability to dampen vibrations. Add
lubrication and they become virtually silent.
Plastics absorb shock loads better than metal due to their elastic nature.
Many conventional radial ball bearings fail due to brinelling of the raceway,
ie: balls denting the raceway. There are three reasons steel bearings require
lubrication; to reduce friction, dissipate heat and resist corrosion. Plastic,
by nature, does not corrode. Due to the design of plastic bearings, there is no
metal to metal contact, resulting in less friction; therefore dissipating heat
becomes less critical.
plastic bearings run freer and naturally have low inertia due to the low
coefficient of friction between plastic and stainless. Two other factors
contributing to low inertia are the ability to run without grease and being
lighter in weight.Engineers often hesitate to use nsk
Bearings in their designs, because they have trusted steel bearings for
years or they just don't think plastics can handle demanding applications or
environments. Plastic Bearings, however, can endure extreme temperatures, heavy
loads and high speeds. Some other benefits to Plastic Bearings are listed
below.
Plastic Bearings can often lead to more freedom from maintenance. Their
resistance to dirt, dust and chemicals make plastic bearings a
set-it-and-forget-it solution. Plastic Bearings can reduce costs up to 25%. They
can be highly wear resistance, with a low coefficient of friction and can
replace more expensive alternatives in many applications. Plastic Bearings also
do not typically need lubrication unless steel balls are used in combination
with plastic races. Plastic bearings are designed to maintain a low coefficient
of friction over the life of the bearing. Compared to steel bearings, which can
become pitted and increase the coefficient of friction, plastic bearings many
times last longer. And finally, timken
Bearings can be used in wash-down applications, salt water and harsh
chemicals without compromising performance. Water can even be considered as a
lubricant for plastic bearings.
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