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2. X-ring chain - Wikipedia

   en.wikipedia.org/wiki/X-ring_chain

   Like the O-ring chain it has sealing rings which keep the contaminant (dirt) out, and lubricant in between the pins and bushings. This is known as internal lubrication. However, unlike O-ring chain, it has X-shaped seal which does not experience increased surface area (which is in contact with the chain plates) when under pressure.

3. Self-lubricating chain - Wikipedia

   en.wikipedia.org/wiki/Self-lubricating_chain

   After they made further improvements to the oil impregnation and sintering technologies, they received a patent for their lube-free roller chain, as evidenced by Patent #JP20070237969. [5] In the new design, advancements in powder metal bush technology allowed engineers to design a bush that had a smaller diameter yet was stronger, which ...

4. O-ring chain - Wikipedia

   en.wikipedia.org/wiki/O-ring_chain

   The o-ring chain is named for the rubber o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut.

5. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   Finally, the wax is subjected to a catalytic process that alters the wax's molecular structure, leaving a clear oil. [ 59 ] Biodegradable motor oils based on esters or hydrocarbon-ester blends appeared in the 1990s followed by formulations beginning in 2000 which respond to the bio-no-tox-criteria of the European preparations directive (EC/1999 ...

6. O-ring - Wikipedia

   en.wikipedia.org/wiki/O-ring

   Typical O-ring and application. An O-ring, also known as a packing or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, forming a seal at the interface.

7. Tara Lipinski Says 'Ash Was Falling' on 14-Month-Old Daughter ...

   www.aol.com/tara-lipinski-says-ash-falling...

   Tara Lipinski is sharing a scary moment she endured while evacuating the Los Angeles fires.. The professional figure skater, 42, posted a video on her Instagram Stories on Thursday, Jan. 9, as her ...