UP TO 10X THE LIFE OF BRONZE BUSHINGS

THE PROOF IS IN THE PUDDING

We have said for many years that Vesconite bushings last up to ten times longer than bronze. But, since the proof is in the pudding, we have conducted in-house tests to prove this. We have found that Vesconite outperforms bronze, particularly when bronze is ungreased.

Even when bronze is greased, Vesconite without greasing gives much better results than bronze with grease. Yes, Vesconite with no grease lasts longer than bronze with grease.

LONG LASTING IN IN-HOUSE TESTS

TESTING BRONZE WITH GREASE

With greasing in our test, bronze performs well with continuous use. But only for three hours of operation.

At three hours, the bronze coefficient of friction increases significantly, and grease needs to be reapplied.

With greased bronze bearings, friction forces become significant with time and wear is pronounced.

 

 

 

 

TESTING BRONZE WITHOUT GREASE

In in-house testing with no grease, the co-efficient of friction of the bronze increases dramatically until one hour has passed. After five hours of continuous use, bronze fails.

Our bronze test samples also show considerable wear and deformation.

THE ISSUE OF GREASING

Vesconite has a largely steady co-efficient of friction when it is ungreased.

A single application of grease reduces Vesconite’s coefficient of friction and increases its life. Again the coefficient of friction, at this lower level, is largely steady.

Since Vesconite is internally lubricated, unlike bronze, it does not need additional greasing in most applications. This saves on time, labour and greasing costs.

Self-lubrication also makes Vesconite bearing materials suitable for outdoor environments in which greasing is irregular or where grease is quickly washed off.

Vesconite bearing materials are also suited to oscillating applications, such as grabs, where the grease may not be spread if the oscillations are minimal.

LONG LASTING IN CLIENT TESTS

Want more information on Vesconite’s longevity in independent tests? In one client test, Vesconite showed no appreciable wear in test conditions.

In another client test, Vesconite showed 35% less wear when compared to phosphor bronze.

 

 

CASE STUDIES - SHIFTING FROM BRONZE TO VESCONITE
A leading civil and infrastructure engineering contractor installed Vesconite Hilube wear-resistant U-shaped wear pads on graders in Nigeria. The company found the wear pads operated well with some chiselling wear on the shorter edge of the U-shaped pad after 535 hours of use. The wear pads acted as guides that…
Vesconite bushings were fitted to an eight-cubic-metre, multi-purpose grab used to offload ships in Durban ‑ the port that handles the greatest volume of sea-going traffic of any port in southern Africa. The grab operated under conditions of high ambient temperatures, high humidity and dirt. It was in use 22 hours daily…
A 54%-per-component saving has been realised by Powerworks following the replacement of bronze bushings with a Vesconite low-friction bearings in the Jetstream turbine starters. This is according to Powerworks Manufacturing Manager Philip van den Hoeck, who was responsible for the initiative to replace the bushing located inside a drive spindle…
An independent test has shown that a Vesconite left-hand torque-plate bushing, made from a no-grease hard-wearing engineered polymer, shows 35% less wear than a phosphor bronze right-hand torque-plate bushing of a similar design after one year of being exposed to abrasive material. The test was carried out by a large…
If you thought you had to get your endorphin fix in a sweaty indoor environment filled with unsightly Lycra, think again. The outdoor gym craze has finally hit South Africa, with increasingly sophisticated gym park equipment popping up in trendy urban hotspots. And, with this new fitness phenomenon comes specialised…
The labour time spent on greasing bushings can be substantial. Although some greasing globally is automated, much re-lubrication is performed by hand using a grease gun. This means that the time spent greasing one grease point totals between three and five minutes for the staff member involved, be they a…
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