company is focused on providing the best bearings
for submersible pumps, the best service, and the
best value in the industry.To provide best qulity
product we have to provide best quality material.
Mitutronics has developed a Product of Metroite
to provide best solution for engineering plastic
moulding. Phenomena of the Metronite are proven
For best quality results. The internally lubricated
long life bearing material that has been proven
in thousands of critical applications. Originally
developed to overcome bearing problems caused
by water swell of traditional non-metallic bearing
Metronite high lubricating
- lowest friction, longest wear life, lowest shaft
The higher grade of Metronite with a lower friction,
lower wear rate and a greater ability to run dry.
Metronite High lubricating has the same dimensional
stability, mechanical properties and chemical
resistance as Metronite
- high temperature, abrasion resistant
A low wear bearing material specially formulated
for higher temperature resistance,
It has exceptional abrasion resistance and is
well suited to pump applications of media with
suspended dirt particles.
High temperautre may be the material of choice
when corroded or rough shafts cannot be avoided.
Metronite is compounded with internal lubricants
to produce a material with a low coefficient of
friction. This low friction is maintained even
when lubrication or water is not present.
Metronite’s low friction applies not only
under laboratory test conditions, but also under
actual operating conditions. Stick- slip does
not occur with Metronite bearings even if pumps
have been in standby mode for long periods of
time without operating . This can reduce the requirement
to prime bearings before starting a pump. This
is critically import for emergency type pump such
as fire pumps, settler pumps and flood pumps.
High compression strength
Metronite keeps its strength even when wet and
does not creep under high loads.
Loads on Metronite bearings do not result in
compression, deformation or compression set. This
means that the shaft is more stable.
High load capacity Metronite bearings offer better
load capacity than many traditional rubber or
elastomer bearings .
Low shaft wear
Wear of expensive shaft can be more of a problem
than wear of a bearing because of the cost of
the shaft. Shaft wear is especially seven in dirty
Appropriately designed hard shaft running in
Metronite bearing exhibit exceptionally low wear.
Metronite High lubricating further reduces shaft
wear due to its lower friction. In particular
nylons and many rubber materials are noted for
damage caused to shafts.
Easy to install And remove
Metronite bearings are easy to install and remove
without the need for expensive equipment. Bearings
can be easily installed on site with a minimum
of effort and equipment, using simple mechanical
Metronite does not corrode and seize in bearing
housings, unlike bronze and metal backed bearings
which become difficult to remove.
Easy to machine
Metronite can be easily machined on standard
metalworking or woodworking equipment.
Metronite does not creep, deform or swell and
machines easily to desired tolerances.
Delamination is the peeling off of layers of a
laminated bearing material. This often happens
in immersed conditions where water or liquid penetrates
the exposed micro-channels that are formed by
the cloth reinforcing material.
Swelling occurs along the micro channel surfaces
causing stresses between the resulting in the
layers peeling off.
Metronite is a homogeneous material with no lamination
reinforcement and so does not delaminate.
Resistant to chemicals
In addition to its excellent performance in water,
Metronite and Metronite Hilube are resistant to
a wide range of chemicals including acids, organic
chemicals, solvents, hydrocarbons, oils and fuels.
Metronite and Metronite Hilube bearing can therefore
be lubricated by a range of pumped media. Mixtures
of water, oils and fuels do not damage Metronite
Safety and Health
Metronite does not contain any hazardous substances
such as asbestos or fibres that make using, handling
and machining unsafe.
Metronite is an exceptionally clean material
to machine and possesses no fibre or dust hazards.
Low thermal expansion
Metronite bearings do not change size significantly
as the operating temperature changes, so close
clearances can be maintained across a wide temperature
This means that Metronite bearings can be designed
with minimal running clearances without danger
of shaft seizures.
Metronite bearings can be designed with close
running clearances reducing shaft vibration and
improving external bearing life.
Metronite long life bearings ensure that expensive
removal and repair of pumps is limited.
Support bearings can be grooved bearings when
there is a water flow through the bearing. Bearings
may not require grooves where the bearing is immersed
in the pumped medium and does not require much
Lantern rings are used as part of a shaft sealing
system to evenly distribute water around the pump
shaft and used especially in slurry pumps.
The dimensional stability of Metronite allows
for stable running clearances so that a desired
water flow rate may be achieved . Due to their
low friction, Metronite rings can survive even
when the water supply is temporarily suspended.
Impeller and casing wear rings
Metronite wear rings can be designed to run with
smaller clearance between the ring and impeller
or casing . This means a higher pumping efficiency
due to a lower by-pass.
If the Metronite wear ring happens to contact
with the housing no damage is caused. The wear
ring conform to the new size and re-establish
a close clearance.