Micro Bearing Question

This topic has 3 replies, 3 voices, and was last updated 15 October 2017 at 10:23 by mgnbuk.

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15 October 2017 at 09:00 #321523
David Cambridge
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@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
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15 October 2017 at 09:00 #25562
David Cambridge
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@davidcambridge45658
Micro Bearing Question
15 October 2017 at 10:02 #321532
Clive Hartland
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@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.
15 October 2017 at 10:23 #321538
mgnbuk
Participant
@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
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Micro Bearing Question

Micro Bearing Question

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