hub grease seal

high pressure shaft seals.

3. Durability and Longevity Made from high-quality materials such as cast iron or composite materials, inset manhole lids are engineered to endure the wear and tear of urban environments. Their design can also help distribute weight more evenly than traditional lids, potentially extending their lifespan and reducing the frequency of replacements.
Why am I responsible for the manhole on my property?
Many Homes have a manhole located on their property typically constructed by the developer of the housing plan. This manhole gives the Sanitary Authority access to our sewers for routine maintenance and emergency work. When your house was constructed, the top of the manhole was placed at grade, or ground level. Over time, residents and landscapers inadvertently cover over the manhole with grass, build planter boxes around manholes, or cover over the manhole with mulch.