This represents a new generation of oil seals.
Viton®
High level of chemical resistance
High temperature resistance

The sealing effect is achieved by manufacturing a smaller inside diameter than the required shaft size, which preloads the sealing lip. A garter spring is often used to ensure a constant force on the shaft.
Remove the pump fixing nuts or bolts. Pull the pump and gasket or gaskets off the engine.
Many oil seals are capable of resisting contact with grease, fuel, water, and other elements. Knowing what type of fluid the seal will interact with will help you choose the right oil seal that can withstand those types of fluids.
Sealing edge This refers to the component of the oil seal that makes contact with the shaft.
It is wedge-shaped to be pressed against the shaft surface and makes contact with the shaft to ensure sufficient sealing performance and suitability for operation at high peripheral speed.
The 99 Camry oil pump seal is a critical component in the engine system of the Toyota Camry. This seal is responsible for preventing oil leaks and maintaining the proper lubrication of the engine's oil pump. The integrity of the oil pump seal is essential for sustaining the oil pressure and ensuring the efficient operation of the engine. Proper maintenance and replacement of the 99 Camry oil pump seal are crucial for the performance and longevity of the vehicle.
The oil seal gets its structural stability from an interior metal ring which serves as an inner skeleton. The outer skin is made of a more flexible material like nitrile rubber or other materials based on the physical environment of the seal. A spring on the lip of the seal supports the lip and keeps the lubricant from leaking. The lip construction is what blocks contaminants from outside.