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    Maintenance of rotary shaft oil seals involves regular inspections for signs of wear, such as cracking, deformation, or excessive leakagerotary shaft oil seals. Early detection of these issues can prevent more significant problems down the line. Additionally, proper lubrication of the shaft and seal can significantly enhance their lifespan and performance.

    What is Manhole?
    A manhole is a covered opening or access point on the surface of a road, sidewalk, or other paved area that provides entry into an underground utility or infrastructure system. It is typically a round or rectangular hole large enough for a person to enter and perform maintenance or inspection tasks.
    Manholes are common in urban areas and serve as access points to underground networks, including sewer systems, storm water drains, electrical and communication cables, water pipelines, and gas lines. They allow workers to enter these underground structures for repairs, cleaning, inspections, or installations.