Atomically precise slide bearing - Revision history

Apm: Category:Far term target

2026-03-29T18:14:50Z

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	[[Category: Technology level III]]		[[Category: Technology level III]]
			[[Category:Far term target]]

Apm: typofix

2022-09-18T12:49:24Z

typofix

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	{{Stub}}		{{Stub}}
	'''Up: [[Atomically precise bearings]]'''		'''Up: [[Atomically precise bearings]]'''
	[[File:Strained-shell-sleeve-bearing.gif\|300px\|thumb\|right\|A simulation of a '''~~superlubricatinvg~~ strained shell sleeve bearing'''. Author Eric K. Drexler]]		[[File:Strained-shell-sleeve-bearing.gif\|300px\|thumb\|right\|A simulation of a '''superlubricating strained shell sleeve bearing'''. Author Eric K. Drexler]]
	[[File:0315bearingSums.gif\|thumb\|400px\|Graphic by Eric K. Drexler -- Citation: "Symmetric molecular bearings can exhibit low energy barriers that are insensitive to details of the potential energy function" <ref name="pdrag"> '''Drag mechanisms in symmetrical sleeve bearings:''' Drexler, K. E. (1992) ''[[Nanosystems]]: Molecular Machinery, Manufacturing, and Computation.'' Wiley/Interscience, pp.290–293.</ref>]]		[[File:0315bearingSums.gif\|thumb\|400px\|Graphic by Eric K. Drexler -- Citation: "Symmetric molecular bearings can exhibit low energy barriers that are insensitive to details of the potential energy function" <ref name="pdrag"> '''Drag mechanisms in symmetrical sleeve bearings:''' Drexler, K. E. (1992) ''[[Nanosystems]]: Molecular Machinery, Manufacturing, and Computation.'' Wiley/Interscience, pp.290–293.</ref>]]
	[[File:Drexlers Big Bearing - photo of 3D printed model.JPG\|thumb\|400px\|Erik K. Drexlers superlubricating "big bearing" - This is a photo of a 3D printed model. See: http://www.thingiverse.com/thing:631715]]		[[File:Drexlers Big Bearing - photo of 3D printed model.JPG\|thumb\|400px\|Erik K. Drexlers superlubricating "big bearing" - This is a photo of a 3D printed model. See: http://www.thingiverse.com/thing:631715]]

Apm: added image of 3D print

2022-08-29T08:05:37Z

added image of 3D print

← Older revision		Revision as of 10:05, 29 August 2022
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	[[File:Strained-shell-sleeve-bearing.gif\|300px\|thumb\|right\|A simulation of a '''superlubricatinvg strained shell sleeve bearing'''. Author Eric K. Drexler]]		[[File:Strained-shell-sleeve-bearing.gif\|300px\|thumb\|right\|A simulation of a '''superlubricatinvg strained shell sleeve bearing'''. Author Eric K. Drexler]]
	[[File:0315bearingSums.gif\|thumb\|400px\|Graphic by Eric K. Drexler -- Citation: "Symmetric molecular bearings can exhibit low energy barriers that are insensitive to details of the potential energy function" <ref name="pdrag"> '''Drag mechanisms in symmetrical sleeve bearings:''' Drexler, K. E. (1992) ''[[Nanosystems]]: Molecular Machinery, Manufacturing, and Computation.'' Wiley/Interscience, pp.290–293.</ref>]]		[[File:0315bearingSums.gif\|thumb\|400px\|Graphic by Eric K. Drexler -- Citation: "Symmetric molecular bearings can exhibit low energy barriers that are insensitive to details of the potential energy function" <ref name="pdrag"> '''Drag mechanisms in symmetrical sleeve bearings:''' Drexler, K. E. (1992) ''[[Nanosystems]]: Molecular Machinery, Manufacturing, and Computation.'' Wiley/Interscience, pp.290–293.</ref>]]
			[[File:Drexlers Big Bearing - photo of 3D printed model.JPG\|thumb\|400px\|Erik K. Drexlers superlubricating "big bearing" - This is a photo of a 3D printed model. See: http://www.thingiverse.com/thing:631715]]

	Atomically precise slide bearings are bearings with:		Atomically precise slide bearings are bearings with:

Apm: /* Related */

2022-08-29T07:53:18Z

← Older revision		Revision as of 09:53, 29 August 2022
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	* [[Absence of wear in atomically precise bearings]]		* [[Absence of wear in atomically precise bearings]]
	* Deliberate inclusion of [[snapback]] elements can make an intentional high friction [[damper element]]		* Deliberate inclusion of [[snapback]] elements can make an intentional high friction [[damper element]]
			----
			* [[Snapback]]
			* [[Negative pressure bearings]]

	== External links ==		== External links ==

Apm: /* Related */ added link to wikipedia page about "Plain bearing"

2022-08-11T15:16:54Z

Related: added link to wikipedia page about "Plain bearing"

← Older revision		Revision as of 17:16, 11 August 2022
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	* [[Absence of wear in atomically precise bearings]]		* [[Absence of wear in atomically precise bearings]]
	* Deliberate inclusion of [[snapback]] elements can make an intentional high friction [[damper element]]		* Deliberate inclusion of [[snapback]] elements can make an intentional high friction [[damper element]]

			== External links ==

			* Wikipedia: [https://en.wikipedia.org/wiki/Plain_bearing Plain bearing] (aka sleeve bearing)

	= References =		= References =

Apm: /* Related */ added link to snapback

2022-08-11T14:46:14Z

Related: added link to snapback

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	* [[Superlubricity]]		* [[Superlubricity]]
	* [[Absence of wear in atomically precise bearings]]		* [[Absence of wear in atomically precise bearings]]
			* Deliberate inclusion of [[snapback]] elements can make an intentional high friction [[damper element]]

	= References =		= References =

Apm: added image shoeing potential smooth-out & reference

2022-08-11T14:40:49Z

added image shoeing potential smooth-out & reference

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	'''Up: [[Atomically precise bearings]]'''		'''Up: [[Atomically precise bearings]]'''
	[[File:Strained-shell-sleeve-bearing.gif\|300px\|thumb\|right\|A simulation of a '''superlubricatinvg strained shell sleeve bearing'''. Author Eric K. Drexler]]		[[File:Strained-shell-sleeve-bearing.gif\|300px\|thumb\|right\|A simulation of a '''superlubricatinvg strained shell sleeve bearing'''. Author Eric K. Drexler]]
			[[File:0315bearingSums.gif\|thumb\|400px\|Graphic by Eric K. Drexler -- Citation: "Symmetric molecular bearings can exhibit low energy barriers that are insensitive to details of the potential energy function" <ref name="pdrag"> '''Drag mechanisms in symmetrical sleeve bearings:''' Drexler, K. E. (1992) ''[[Nanosystems]]: Molecular Machinery, Manufacturing, and Computation.'' Wiley/Interscience, pp.290–293.</ref>]]

	Atomically precise slide bearings are bearings with:		Atomically precise slide bearings are bearings with:
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	* [[Superlubricity]]		* [[Superlubricity]]
	* [[Absence of wear in atomically precise bearings]]		* [[Absence of wear in atomically precise bearings]]

			= References =

			<references/>

			[[Category: Technology level III]]

Apm: added image & a bit of cleanup

2022-08-11T12:13:28Z

added image & a bit of cleanup

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	{{Stub}}		{{Stub}}
	'''Up: [[Atomically precise bearings]]'''		'''Up: [[Atomically precise bearings]]'''
			[[File:Strained-shell-sleeve-bearing.gif\|300px\|thumb\|right\|A simulation of a '''superlubricatinvg strained shell sleeve bearing'''. Author Eric K. Drexler]]

	Atomically precise slide bearings are bearings with:		Atomically precise slide bearings are bearings with:

	* all surfaces being atomically precise and nonreactive (See: [[nanoscale passivation]])		* all surfaces being atomically precise and sufficiently nonreactive (See: [[nanoscale passivation]])
	* atomic bumpiness tuned for incommensurability – See: [[superlubricity]]		* atomic bumpiness tuned for incommensurability – See: [[superlubricity]]
	* dry running – no lubricants – (atoms in lubricants would be like gravel at these scales)		* dry running – no lubricants – (atoms in lubricants would be like gravel at these scales)
	* no hollow spaces where dirt could get caught in / operating in a sealed [[PPV]] environment		* no hollow spaces where dirt could get caught in & (redundantly) typically operating in a sealed [[PPV]] environment

	== Pros & Cons ==		== Pros & Cons ==

Apm: /* Related / added link to yet unwritten page Absence of wear in atomically precise bearings

2022-08-11T12:10:17Z

Related: added link to yet unwritten page * Absence of wear in atomically precise bearings

← Older revision		Revision as of 14:10, 11 August 2022
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	* [[Infinitesimal bearings]]		* [[Infinitesimal bearings]]
	* [[Superlubricity]]		* [[Superlubricity]]
			* [[Absence of wear in atomically precise bearings]]

Apm: /* 2 Strategies for reducing friction for higher speeds */

2022-08-11T12:07:49Z

2 Strategies for reducing friction for higher speeds

← Older revision		Revision as of 14:07, 11 August 2022
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	* very high friction for high speeds <br> Dynamic friction scales quadratically with speed. 10x speed 100x friction. <br>And vice-versa as the flip side of the coin.		* very high friction for high speeds <br> Dynamic friction scales quadratically with speed. 10x speed 100x friction. <br>And vice-versa as the flip side of the coin.

	== 2 Strategies for reducing friction for higher speeds ==		== 2 Strategies for reducing friction for higher speeds – in bigger bearings ==

	The design principle of [[Infinitesimal bearings]] can help for higher speeds <br>		The design principle of [[Infinitesimal bearings]] can help for higher speeds <br>