Hebei Hankai rotary lip seal

The hub axle seal's primary function is to keep the axle lubricated. The lubricant, often a type of grease or oil, is crucial for reducing friction between moving parts. Without proper lubrication, the components can suffer from overheating and excessive wear, potentially leading to significant damage and costly repairs. Additionally, the seal prevents water and dirt from entering the axle assembly, which can cause rust and corrosion, further jeopardizing the integrity of the axle.


The production of roof tiles during the Roman Empire was a highly developed craft. Romans established factories, often located near significant building projects, to mass-produce these tiles. Artisans developed various techniques to create tiles with different patterns and glazes, allowing for personalization in construction. The color and finish of these tiles could vary, giving homeowners the ability to choose styles that complemented their tastes or the overall design of their estates. This ability to customize was particularly evident in luxurious villas, where different shades of tiles might adorn roofs, enhancing their aesthetic appeal.
roof tiles roman
