A camshaft seal keeps engine oil in and dirt/water out.
To keep the hydraulic fluid in (double acting cylinders) and to keep dirt/washwater/etc out.
The brake caliper boot seal keeps out dust and dirt. If not replaced it can cause the caliper seal to leak and the brakes to possibly fail. It is simple to replace.
The purpose of a cylinder seal is to write signatures in early times.
Brake wheel cylinder or axle sealBrake wheel cylinder or axle seal
Keeps dirt out of it
Not really. It will leak out eventually. Besides by leaving a charged C02 cylinder in the pistol keeps pressure on the seal and this may damage it over time. I always take the cylinder out of the pistol when I am finished shooting. No matter how much C02 is left int the cylinder. It doesn't cost that much to put a new Cylinder in the pistol when I want to use it again. Besides leaving it in the pistol will eventually reform the seal. I want it to return to a normal shape between shooting sessions. Is it cheaper to buy a new cylinder or have the pistol repaired because the seal is warped.
The Secretary of State.
Diana Loves you bbe
a seal (i.e seal) between the cylinder and the head on a car
The purpose of the bottom door seal strip is to prevent air, water, and debris from entering or escaping through the bottom of the door. It helps maintain the integrity of the door by creating a tight seal that keeps the interior of the door protected from external elements, such as drafts, moisture, and dirt.
The 15XT has a built in seal.