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2. Harmonic damper - Wikipedia

   en.wikipedia.org/wiki/Harmonic_damper

   A harmonic balancer (sometimes called crankshaft damper, torsional damper, or vibration damper) is the same thing as a harmonic damper except that the balancer includes a counterweight to externally balance the rotating assembly. The harmonic balancer often serves as a pulley for the accessory drive belts turning the alternator, water pump and ...

3. Blowout preventer - Wikipedia

   en.wikipedia.org/wiki/Blowout_preventer

   A blowout preventer (BOP) (pronounced B-O-P) [1] is a specialized valve or similar mechanical device, used to seal, control and monitor oil and gas wells to prevent blowouts, the uncontrolled release of crude oil or natural gas from a well. They are usually installed in stacks of other valves.

4. Labyrinth seal - Wikipedia

   en.wikipedia.org/wiki/Labyrinth_seal

   Labyrinth seals are also found on pistons, which use them to store oil and seal against high pressure during compression and power strokes, as well as on non-rotating shafts. In these applications, it is the long and difficult path and the formation of controlled fluid vortices plus some limited contact-sealing action that creates the seal.

5. Garter spring - Wikipedia

   en.wikipedia.org/wiki/Garter_spring

   A garter spring inside a rubber seal. A garter spring is a coiled steel spring that is connected at each end to create a circular shape, and is used in oil seals, shaft seals, belt-driven motors, and electrical connectors. Compression garter springs exert outward radial forces, while extension garter springs exert inward radial forces.

6. John Crane Group - Wikipedia

   en.wikipedia.org/wiki/John_Crane_Group

   John Crane is an American company, now a subsidiary of Smiths Group and provider of engineered products and services including mechanical seals, couplings, seal support systems, filtration systems and digital diagnostics technologies. The company services customers in the energy services sector including production, transmission and storage ...

7. White House approves student debt cancellation for thousands ...

   www.aol.com/news/white-house-approves-student...

   One month before President Biden leaves the White House, the Biden administration announced it has forgiven student loan debt for 54,900 public service workers.

8. Mortgage and refinance rates for Jan. 3, 2025: Average rates ...

   www.aol.com/finance/mortgage-and-refinance-rates...

   New data from Freddie Mac shows the benchmark 30-year fixed-rate mortgage trending at its highest levels since July as of Friday, January 3, 2025, while average rates drift lower to end a week of ...

9. Volunteers battle to clear spilled oil on Russia's Black Sea ...

   www.aol.com/news/volunteers-battle-clear-spilled...

   Volunteers struggled on Friday to shovel up tons of sticky oil from Russia's Black Sea coastline following what President Vladimir Putin has called an ecological disaster. The oil spilled from two ...