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Instrument ball bearings in vacuum

Instrument ball bearings in vacuum

Instrument ball bearings in vacuum

(OP)
I wish to use small ball bearings (5 mm shaft) in light vacuum (-1 bar) I would like to minimize friction.

Are there any special issues I should be considering such as lubrication?

 

RE: Instrument ball bearings in vacuum

yes. in vacuum most greases and oils will loose some of the more volatile components, thus leaving behind a lubricant that will be more viscous or thick then acceptable. you better talk to a knowledgable lubricant supplier and to your bearing supplier to discuss your construction and to get advice which lubricant (oil, grease or paste) would best suit your particular requirements

RE: Instrument ball bearings in vacuum

Perfect application for Cobra Solid Graphite lubricant from Unique Technologies. I used to work there.

http://www.uniquetechnologies.com/

Russell Giuliano
 

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