Hebei Hankai excavator seal
2. Contaminant Protection Grease seals act as a first line of defense against contaminants. Dust, water, and debris can enter the bearing assembly and potentially lead to corrosion, pitting, and other forms of wear. By keeping these contaminants out, grease seals help maintain the integrity of the bearings.
wheel bearing grease seal



Moreover, the incorporation of nanostructures into composite gratings has opened up exciting possibilities for miniaturization and integration into photonic devices. The emergence of nanotechnology has facilitated the creation of ultra-thin gratings capable of functioning within compact setups. These nanostructured composite gratings can manipulate light at scales that were previously unachievable, leading to breakthroughs in areas like sensors and imaging systems.
composite grating
