Micro Bearing Question

[David CambridgeParticipant @davidcambridge45658]

Hello all

 

I need a bearing that will run at about 15000 RPM, for extended periods, be tricky to get at when running, and on a shaft of 6 mm diameter. I’m a bit stuck.

 

Should I

 

Give up ?

Make a phosphor bronze bushing ?

Buy a good quality micro ball race ?

 

Thanks!

 

David

Edited By David Cambridge on 15/10/2017 09:00:35

[David CambridgeParticipant @davidcambridge45658]

Micro Bearing Question

[Clive HartlandParticipant @clivehartland94829]

Forget the bronze bushing, I doubt it will stand 15,000 rpm. Search for high speed ball bearings and you may find they are only have 5 ball bearings in them. They only need a small amount of lube. oil not grease.

[Ex contributorParticipant @mgnbuk]

**LINK**

How about ceramic bearings ? A quick Google for a spec on a ZrO2 696 bearing from one manufacturer gave an operating temparature of up to 250 C and 12000 rpm when oil lubricated – other makes may give different specs. & alternative lubrication regimes may help increase the operating speed.

HTH

Nigel B

[Author]

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