1. This cover is designed to resist degradation from environmental conditions, mechanical wear and tear, and vandalism. 2. Since there is no contact with a brake shoe or drum, there is no mechanical wear . 3. Tactically, this also meant moving the Tiger units constantly to parry breakthroughs, causing excessive mechanical wear . 4. Any losses in strength properties are due only to the mechanical wear during the second processing step. 5. Dental abrasion or tooth wear is common in ferrets, and is caused by mechanical wear of the teeth. 6. The slipring assembly is mounted in a solid glass-fibre reinforced plastic housing which withstands corrosion and mechanical wear . 7. Spheres are not subject to mechanical wear , but suffer pressure loss, due to the pressurised nitrogen diffusing through the membrane. 8. The rate of mechanical wear is mainly a function of how often a device is activated to make a change. 9. Research is also ongoing to produce more robust systems which are less vulnerable to natural damage, mechanical wear and icing. 10. It was found to have very poor resistance to mechanical wear , mainly abrasion within cable harnesses due to aircraft movement.
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