Turning Archive 2006

Subject:
vacuum system

Claudia Hayward
>I have been messing about building a vacuum system and have arrived at the point where I need to run the air line through my spindle. The plans I am using suggest running the line through a sealed bearing. I did this and found that I was leaking a lot of air through the bearing itself, despite the fact it is supposed to be sealed. My question is ... are there different types of sealed bearings? This one came from an auto supply.

All suggestions gratefully received. This project has been in the works for several months and I am really wanting to get this system working for me!!

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