Lehvoss North America claims it has developed new thermoplastic compounds that make it possible to produce gear wheels that are more resilient compared to acetal, nylon, and PBT even at elevated temperatures.
LUVOCOM 1-8181 and 1-8520 compounds polyamide 66 fortified with carbon fibres and impact modifiers, have been developed for gear wheels subject to high stresses. It’s claimed the strengths of these compounds at room temperature and at 120°C (240°F) have been increased by approximately 80% compared with standard polyamide 66 compounds.
The company says incorporating lubrication into the materials leads to an improvement in the tribological properties of plastic gear wheels which also contributes to a cleaner operating environment due to the elimination of external lubrication.