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Micro Bearing Question

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David Cambridge	15/10/2017 09:00:15
252 forum posts 68 photos	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
Clive Hartland	15/10/2017 10:02:04
2929 forum posts 41 photos	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.
mgnbuk	15/10/2017 10:23:44
1394 forum posts 103 photos	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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