self lubricating bearings and bushes solve wear problems
is a specialised thermoplastic made from internally lubricated
polymers. Proved since the 1960's as an exceptional bearing material in
demanding conditions, Vesconite gives low wear even in dirty or
Up to 10 times the life of
bronze in dirty
has high dimensional stability and does not swell in water, in
contrast to most synthetic materials which swell in water. For
example, nylon swells up to 3% water and softens.
Vesconite machined bush
gives excellent savings over its installed life cycle.
offers many advantages over traditional bearing materials.
has built in lubricants which give a low friction and long life even
when greasing does not
provides outstanding wear resistance, resulting in many times longer
service life when compared with bronze. It is also less affected by poor lubrication and
load bearing strength
has very low creep rates and is suited to design loadings up to 30
MPa (4275 psi). It has a much higher load capacity than
nylon, and its compressive strength and clearances are not
affected by water absorption.
does not swell when exposed to water or humid conditions, while
nylon can swell up to 3% when immersed.
thermal expansion factor of Vesconite is only 2.5 times that of
bronze. Nylon is 5 times greater and UHMWPE is 10 times
greater than Vesconite.
therefore needs only slightly more clearance than the corresponding
metal parts. No allowance needs to be made for moisture changes in
has outstanding dynamic friction, with a friction coefficient of less
than half that of bronze or nylon. This allows for higher combinations of
loads and speeds.
of Vesconite bushes on assembly further decreases friction, allowing
higher speeds to be used and generally improving performance.
is an excellent lubricant for Vesconite, making Vesconite ideal for
many immersed applications.
Hilube offers even further reduced friction (down by
50%), making it an ideal material for unlubricated applications.
is suitable for continuous use at 100º to 120°C (212º
to 248°F) in dry conditions and 60° to 70°C (140° to
158°F) in wet conditions.
life of shafts and pins
wear of metal pins and shafts is reduced by as much as 90% when Vesconite
bushes are used. The high cost of replacing expensive shafts and
pins can often be saved. This valuable benefit alone justifies the
change over to Vesconite in many applications.
is resistant to dilute and moderate acids, organic solvents, oils and
petroleum. It has limited resistance to strong acids and alkalis.
Lengthy immersion in boiling water should be avoided. See the
Vesconite Chemical Resistance Chart for
machines easily on wood working and metal working equipment, such as
lathes, milling machines, bandsaws, drilling machines, planers,
spindle moulders and routers.
Vesconite stock range includes hundreds of sizes of machineable rods,
bushings, plates, finished bushes, discs, washers and ready to use
you need to know a stock size visit
The Vesconite stock range includes:
from 8 to 135 mm diameter (0.32" to 5.5").
available up to 730 mm (26") diameter.
standard from 3 to 50 mm thick (0.12" to 1.97").
components made at request.
bushes are ideal for many demanding applications.
load, low speed applications in earthmoving, construction, materials
handling, mining, cranes and hoists, transport and much more.
or immersed applications in pumps, marine, hydro, valves and water
Updated Apr 07 2005
visitors since Mar 22 2005