extra large ironing board cover and pad_fitted outdoor tablecloth with umbrella hole

2. Contaminant Prevention Oil seals serve as a barrier against external contaminants. By preventing the ingress of dirt, water, and other particles, they help maintain the integrity of the lubricant and the machinery's internal environment. This protection ensures that lubricants can function effectively, reducing wear and tear on moving parts.

The design of the lip is crucial; its profile allows it to make optimal contact with the shaft, creating a seal that can accommodate the shaft's rotation. Some rotary lip seals also include a dust lip or exclusion barrier, which helps protect the primary sealing lip from contaminants such as dirt and debris.