Mesoscale friction - Revision history

Apm: Category:Surprising facts

2026-03-29T20:37:06Z

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	* [[maglev vs mesoinfinigearbearings]]		* [[maglev vs mesoinfinigearbearings]]

			[[Category:Surprising facts]]

Apm: /* Related */ added link to yet unwritten page maglev vs mesoinfinigearbearings

2026-02-13T09:08:01Z

Related: added link to yet unwritten page maglev vs mesoinfinigearbearings

← Older revision		Revision as of 11:08, 13 February 2026
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	* [[Friction]]		* [[Friction]]
	* [[Friction in gem-gum technology]]		* [[Friction in gem-gum technology]]
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			* [[maglev vs mesoinfinigearbearings]]

Apm: /* Related */ added three links

2022-08-30T15:29:22Z

Related: added three links

← Older revision		Revision as of 17:29, 30 August 2022
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	== Related ==		== Related ==

	[[Atomically precise roller gearbearing]]		* [[Atomically precise roller gearbearing]]
			* [[Atomically precise bearings]]
			* [[Friction]]
			* [[Friction in gem-gum technology]]

Apm: /* Comparison of friction at different scales */ fixed link

2022-08-30T15:27:45Z

Comparison of friction at different scales: fixed link

← Older revision		Revision as of 17:27, 30 August 2022
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	'''Q:''' What model for friction is appropriate to apply at intermediate scales? <br>		'''Q:''' What model for friction is appropriate to apply at intermediate scales? <br>
	How do optimal larger scale bearings look like even? <br>		How do optimal larger scale bearings look like even? <br>
	Maybe [[infinitesimal ~~beaings~~]] based on [[atomically precise roller gearbearing]]s? <br>		Maybe [[infinitesimal bearing]]s based on [[atomically precise roller gearbearing]]s? <br>
	Or working from macroscale down existing ~~bearins~~ modified such that any remaining sliding is gearbeared on a smaller scale? <br>		Or working from macroscale down existing bearings modified such that any remaining sliding is gearbeared on a smaller scale? <br>
	Sounds crazy fractal exotic.		Sounds crazy fractal exotic.

Apm: /* Relevancy */ fixed link

2022-08-30T15:27:12Z

Relevancy: fixed link

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	== Relevancy ==		== Relevancy ==

	For estimating frictional losses in the higher up [[~~asslembly~~ level]]s of a [[gem-gum factory]] <br>		For estimating frictional losses in the higher up [[assembly level]]s of a [[gem-gum factory]] <br>
	a crudely order of magnitude correct model of critical necessity.		a crudely order of magnitude correct model of critical necessity.

Apm: /* High speed limits to infinitesimal bearings */ fixed link & added linebreak

2022-08-30T15:26:52Z

High speed limits to infinitesimal bearings: fixed link & added linebreak

← Older revision		Revision as of 17:26, 30 August 2022
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	== High speed limits to [[infinitesimal bearings]] ==		== High speed limits to [[infinitesimal bearings]] ==

	Just making very thick infinitesimal bearings of [[atomically precise ~~diamond~~ slide bearing]] seems far from optimal.		Just making very thick infinitesimal bearings of [[atomically precise diamondoid slide bearing]] seems far from optimal. <br>
	For very high speeds like e.g. take the [[Unsupported rotating ring speed limit]] of about 3000m/s even large layernumbers		For very high speeds like e.g. take the [[Unsupported rotating ring speed limit]] of about 3000m/s even large layernumbers
	leave friction levels high.		leave friction levels high.

Apm: basic page

2022-08-30T15:24:17Z

basic page

New page

{{stub}}

The problem:
A missing model for friction at the intermediate size scales.

== Comparison of friction at different scales ==

'''Macroscale friction:'''
* dependent on normal force
* independent from bearing area

'''Nanoscale friction:'''
* dependent on speed (squared!)
* dependent on bearing area
* independent on loads (to a degree)

'''Micro to mesoscale friction ??''' 
Just an interpolation between the two?! Seems theoretically unbiased. 
Even if just interpolate, then how?

'''Q:''' What model for friction is appropriate to apply at intermediate scales? 
How do optimal larger scale bearings look like even? 
Maybe [[infinitesimal beaings]] based on [[atomically precise roller gearbearing]]s? 
Or working from macroscale down existing bearins modified such that any remaining sliding is gearbeared on a smaller scale? 
Sounds crazy fractal exotic.

'''Q:''' High can low friction at high speeds of macroscale bearing be achieved 
without incurring the problem of wear that macroscale bearings suffer from?

== Relevancy ==

For estimating frictional losses in the higher up [[asslembly level]]s of a [[gem-gum factory]] 
a crudely order of magnitude correct model of critical necessity.

Related: [[Friction in gem-gum technology]] & [[Friction]]

== High speed limits to [[infinitesimal bearings]] ==

Just making very thick infinitesimal bearings of [[atomically precise diamond slide bearing]] seems far from optimal.
For very high speeds like e.g. take the [[Unsupported rotating ring speed limit]] of about 3000m/s even large layernumbers
leave friction levels high.

1cm thick sheet of 10nm infinitesimal bearing layers => 1000000layers @ 3mm/s
1000000m² internal bearing area per 1m² effective bearing
With (conservative estimate) ~10mW/m² at 3mm/s that is 10kW friction OUCH.
going 10cm thick 1000W still a lot.

== Related ==

[[Atomically precise roller gearbearing]]