whats the purpose off a mechanical seal?

Question

how does it work?

Answer 1

Wow, this is a broad question but since it is in this category I will relate what I know of mechanical seals as they pertain to vehicles.

Mechanical seals are seals that are made to wear, and be manually adjusted to allow the seal to reseat. This is usually accomplished by mechanically squeezing the rubber in the seal by tightening blots on a torque plate that rests agaist the seal.

Most seals used on engines are press fitted O ring type seals. As the seal wears it will begin to leak. The only solution is to remove and replace the seal with a new one.

Mechnical seals can be "snugged" which forces the rubber part of the seal to expand and close any gap caused by wear.

Answer 2

It is an alternative to the usual rubber or platic "lip" seal type of oil seal, for sealing a revolving component such as a crankshaft to prevent flluid loss. they are usually found where the heat and or pressure is considered too much for a rubber seal. Mechanical seals do not work, morris Minor and Marina 13oo had them as rear crankshaft seals, and they leak oil all over the clutch and the ground, from new in the case of the Marina2 or Ital, also Honda CX 500 bikes have one on the water pump, that either never fails or needs changing every 5000 miles, and the bloody engine needs to come out and the gearbox off to get to it.
I hate mechanical seals.

Answer 3

These are a type of animal at the robot zoo.

Very basic and open question. My guess is you mean a seal to keep fluids where they are supposed to be and out of where they are not supposed to be.

Example is on a crankshaft that spins, there are seals at both ends to prevent the motor oil for seeping out where the crankshaft exits the motor.

Answer 4

Of not off !!!!

The future of the English language is in their hands!!!
Start mourning now.