What are three types of dynamic seal classifications?
Dynamic Seals Dynamic seals retain or separate fluids, keep out contaminants, and contain pressure. They create a barrier between moving and stationary surfaces in applications such as rotating shafts and pistons rings. Important dimensions for dynamic seals include seal inside diameter (ID), shaft outside diameter (OD), housing bore, axial cross-section, and radial cross-section. Service limits include maximum operating speed and maximum operating pressure. Sealing orientation and direction vary widely. Internal seals fit into a housing bore with the sealing lip in contact with the shaft. By contrast, external seals fit onto the shaft so that the sealing lip contacts the housing bore. Symmetric seals are suitable substitutes for both internal rod seals and external piston seals. Axial seals are used with housing or machine components. For proper sealing, the seal lip on a dynamic seal needs to point towards the medium being contained. There are many types of dynamic seals. Oil and gre
