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Post by jack_h » Thu Nov 24, 2005 7:54 pm

I am missing one lot of info for making a miture jet engine. what would i use for bearing in the shaft tunel. i am planing on using caged ceramic ball. but would they need to be lubricated and how.

ow and there was once an off topic asking how small jets could be and i found this ... rojectID=1

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Re: bearings

Post by Fricke » Thu Nov 24, 2005 8:15 pm

Hi jack_h -

The type of bearings depend om how fast your shaft will spin... Below 30k ~ 40k rpm then ordinary bearings would do, 40k ~ 80k then ceramic-hybrids with cage is ok. And over 80k then it´s cage less hybrids.

As for lube, a light oil/fuel mist is used...

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Re: bearings

Post by andy88 » Wed Jun 16, 2010 4:26 am

agre with frekis that the bearing totally depends on the shaft spin
wheel bearings

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