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Slipperiest Lube

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teagueo

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Mar 7, 2017
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463
They're saying there's a type of ceramic in the lubricant but the formula must be proprietary...

1669937433353.png
 
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teagueo

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463
I may have discovered the holy grail of lubricants - the slipperiest of the slippy if you will :LOL:

In this case of a ratchet mechanism, a dry film lubricant will probably be ideal compared to a more "sticky" oil or grease.

In my research, I came across Tungsten Disulfide (WS2). It has the lowest known coefficient of friction out of all the dry film lubes at ~0.03! Better than Molybdenum Disulfide (MoS2), hexagonal Boron Nitride (hBN) and Graphite according to online sources.

If you're not into physics, here's why friction coefficients matter: Say you're sliding a 1000lb steel block across a steel top workbench.

Force required to slide the block = (coefficient of friction) x (weight)

Coefficient of friction for WD40 with steel sliding on steel is around 0.1
1669965793384.png

WD40 sprayed on benchtop: (0.1) x (1000lbs) = 100lbs of force required

WS2 sprayed on benchtop: (0.03) x (1000lbs) = 30lbs of force required

No Lube (Steel on Steel)....... (0.6) x (1000lbs) = 600lbs of force required

The only thing with WS2 is it is usually impinged on a surface so it's more of a specialty application with a high lot charge. I did find that you can mix it with IPA and buff it into a surface as well. It's non-toxic too so if you want to add some to your Passion lube, no problem lol.
 
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dchawk81

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Jul 31, 2014
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14,345
nadogail said:
Many times I have heard the expression “Slicker than snot” describing some unobtainable compound, so I guess Snot is probably the slickest readily obtainable lube. Some silicone compounds are considered very slick, but not having NASA’s budget I will have to continue to use what I can get.
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I've heard "slicker than ****."

So... 🤷
 
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00 Scrub

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Apr 13, 2024
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60
I wanted to bump this thread because I was wondering if anyone has gotten their ratchet internals WPC treated and/or DLC coated and seen a major difference in backdrag/smoothness? I was thinking it might make sense to treat the ratchet pocket and plate as well.
 
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no704

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pcmeiners said:
As a note to Boron Nitride, it is not hydroscopic, in nano form it is hydrophobic and is an excellent lubricant for high heat applications. In micron form can be used on bullets, gun barrels and internal weapon parts.
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I’ve machinied BN and the dust on the concrete floor is very slick!
 
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no704

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5,207
Many years ago when in engineering school i was given a sample of something called drop will do. Used it on my creaking car door hinge. Door would never stay opened after that
Was a start up co in Mi in 2001ish. Not sure what happened to them. Stuff was great think it was moly.
 
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wantedabiggergarage

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When I read DLC, I first figured this was a firearm. Going through the old thread a bit, I didn't really catch if they found anything.

For a firearm you want a mixture of lube and staying power. TW25b, is somewhere in between a liquid and solid, and if this is a sealed ratchet, I suspect you're also going to want staying power and not work out from under the coverplate.
 
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My Old Tools

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Hamrick Lake, TX
teagueo said:
Besides KY or Astroglide, what's the slickest low friction oil you guys know of?

This would be for a small sliding mechanism (low pressure) to reduce sliding friction to the minimum. Grease would likely be too viscous.

I have Super Lube oil ISO 100-150 but have been researching a bit and saw graphene lube is supposed to be next level...
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Just make sure it tastes good and your partner approves.
 
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rust in the eye

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imagineer said:
Funny story about Molybdenum Disulfide.

Most of a lifetime ago, I was in Cub Scouts and the annual Pinewood Derby was coming up. I’d already done the ‘raise one wheel’ and 'center the weight' tricks, but felt I needed something more.

My father was an engineer and was at that time, designing a stabilization device for a centrifuge in the event the main shaft broke. The device was essentially an external drum brake, but to ensure limited negative inertial damping and heat on the rotor, the shoes of the brake had Molybdenum Disulfide baked into the contact surface.

My solution for the pinewood derby car was to, after polishing the nails used for axles, heat them, and try to impregnate the MoS into the surface.

Long story short, it worked and I won the event, by a wide margin. I also competed and won the regional and state gatherings. Each time, my car was inspected before the event and was certified for use. Being a young egomaniac, I didn’t keep my secrets to myself and blabbed (bragged) about the improvements.

One of the dads at the regional event, a lawyer, sent a formal complaint to the BSA governing group, accusing me of violating the rule (at the time) that the car must be made 100% by the scout without adult help. He argued an 8 year-old was incapable of conceiving the technical aspects of the improvements, and that my father must have helped.

3 months later, the B.S.A. head legal counsel decided I had broken the rules and vacated the wins. Needless to say, I was pissed and the incident effectively ended my involvement with the scouts.

Fast forward 24 years…standing in a church in Boston, as a groomsman in my kid sister’s wedding. Being the tallest of the groomsmen, I was situated next to the best man, the groom’s father . . . who was in fact, the (retired) head legal counsel for the Boy Scouts of America who made the decision against me.
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So you learned this by osmosis or dad stepped in to help?
 
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aggie113

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Jul 22, 2015
Messages
470
Location
San Antonio, TX
wantedabiggergarage said:
When I read DLC, I first figured this was a firearm. Going through the old thread a bit, I didn't really catch if they found anything.

For a firearm you want a mixture of lube and staying power. TW25b, is somewhere in between a liquid and solid, and if this is a sealed ratchet, I suspect you're also going to want staying power and not work out from under the coverplate.
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was also going to suggest this, works great on my firearms
 
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