Strained bearings, strongly stressed gears:
Whirl-vearing of a percussion drill after 80 hours continuous stress.
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This bearing was lubricated with conventional oil. The market-value of a percussion-drill is approx. EUR 100,-. If the bearing is damaged, as can be seen on the wear of the right shaft, a repair is not profitable in most cases. |
A bearing of the same series after using a coating of the multi-functional hybrid layer material MHS-4, as developed by A&S-Chemie. The components was stressed under 80 hours continuous load without any other lubricant ("dry run").
The multi-functional hybrid layer was spray-coated before mounting the bearing in the drill. |
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A&S-Chemie's multi-functional hybridlayer is based on a patented polymer MHS-4, spray-coated from a solution of N-methyl-pyrrolidin (NMP).
NMP is mostly untoxic and is non-hazardous to the environment if handled responsibly.
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This pinion shows wear and tear resulting from continuous aperation.
Nevertheless, since it was coated with MHS-4 no significant aberasion occured and it can continue to operate.
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Only small amounts of MHS-4 are required an can be applied to the endangered surfaces by various techniques,
e.g. spray-coating, dip-coating or paint-coating..
Damaged roller bearing.
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The clearly visible dents in the rolls lead to irregular motion, increased temperature, and finally to a bbreak-down of the component.
The aberasion of metal pieces clots the bearing and causes further damage. |
Sliding ring of the bearing (uncoated).
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Since the viscosity of the MHS-4 solution is very low, difficult to access surfaces can be coated. This results in significantly higher life-time.
Usually, a re-design or modification of existing production facilities is not necessary.
Usually, a re-design or modification of existing production facilities is not necessary.
Sliding ring of the roller bearing (coated with MHS-4). Even though the bearing was tortured under similar conditions as described above, no aberasion is visible. |
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