What is the difference between bush and sleeve in mechanical term? 1

[iwate]

Hello everyone

I want to know, What is the difference bush and sleeve?

wear? or shape?

For using vertical pump(Multiple bush) and horizontal pumps(M/seal sleeve & packing sleeve)

Thank for your help~

 

[JJPellin]

In my rotating machinery, I would normally refer to the bushing as the stationary part and the sleeve as the rotating part. I suppose if I had a machine with a stationary shaft and a rotating housing, I would refer to the bushing as the outer part (larger diameter) and the sleeve as the inner part (smaller diameter).

Johnny Pellin

 

[Tmoose]

I don't think you will find a "hard" definition for each term. Especially if the technical instructions are translation from one language to another.

In your examples, I believe in the context of the vertical pump the "bushes" are actually bearings lubricated by the pumped liquid.


I think the seal sleeve and packing sleeve serve as "counter surfaces" over which the seals or packings slide. When the seal contact eventually
causes wear to occur, the (wear) sleeves can be replaced without having to repair the shaft.