Spindle design? ever been tried?

[Kipper]

Hey lwill, It might work! NC whats the discussion about sleeve bearings about? I dont have anything with sleeve bearings in :shrug:

[NC Cams]

Any non-rolling element bearing is considered to be a sleeve bearing.

All the turbo's I've ever seen/am familiar with use oil pressure fed sleeve bearings which are not really or readily preloadable.

Not being a turbo bearing expert, I'm merely pointing out areas of general concern that should be investigated if you or anyone plans to adapt an automotive turbo for machine tool use.

If it works, fine. If it doesn't, you have some root causal areas to concern yourselves with addressing

[Kipper]

Originally Posted by motomitch1 Turbo Spindle & hand grinders have been around for years so it will work. http://www.emazing.com.au/tools/airturbine.htm

Now they look like what i'm aiming at i'll throw some pressure at it next...Bearing supplier to call tomorrow and see what it's going to cost :beer: motomitch1