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2. Pneumatic cylinder - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_cylinder

   Pneumatic cylinder, also known as air cylinder, is a mechanical device which uses the power of compressed gas to produce a force in a reciprocating linear motion. [ 1 ] : 85 Like in a hydraulic cylinder , something forces a piston to move in the desired direction.

3. Wiper seal - Wikipedia

   en.wikipedia.org/wiki/Wiper_seal

   Wiper seals are often used for fluid containment and to prevent dirt from entering a reciprocating shaft mechanism. [ 1 ] Wiper seals are typically used on hydraulic and pneumatic cylinders , as well as telescopic suspension forks for motorcycles and bicycles.

4. Pneumatic valve springs - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_valve_springs

   The tappet bore where a hydraulic tappet would normally reside becomes the cylinder, and the retainer assembly becomes the piston. Pressurized air is pumped into this cylinder which then causes the piston/retainer to rise to the top of cylinder, causing the valve to form an airtight seal with the seat.

5. Rotary union - Wikipedia

   en.wikipedia.org/wiki/Rotary_union

   Other designs include an elbow port, which causes the material to flow out at an angle, and multiple ports. A multiple port rotary union looks like a perforated cylinder. At the end of the cylinder is a threaded screw with a seal or seals that lock on to it. The material being transferred flows into the cylinder and out of the input holes.

6. Radial shaft seal - Wikipedia

   en.wikipedia.org/wiki/Radial_shaft_seal

   Radial shaft seal of Romo washing machine pump. Radial shaft seals, also known as lip seals, are used to seal rotary elements, such as a shaft or rotating bore.Common examples include strut seals, hydraulic pump seals, axle seals, power steering seals, and valve stem seals.

7. Nikasil - Wikipedia

   en.wikipedia.org/wiki/Nikasil

   The nickel silicon carbide solution can then be electroplated onto the aluminium cylinder bore. After the cylinders are plated, the Nikasil bores are diamond-honed to a plateau finish. Pistons will need to be fitted with Nikasil compatible piston rings as chrome rings commonly used with cast iron bores are not compatible. Due to Nikasil's ...