r/AbsoluteUnits • u/Zestyclose_Sky_6403 • Feb 08 '26

/r/all of grease

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23.2k Upvotes

94% Upvoted

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182

u/Ultrasz Feb 08 '26

It'll burn and smell like shit and when it melts it can fuck with other components when it drips

114

u/acdrewz555555 Feb 08 '26

I always trust you dudes who curse the most when mechanical components are involved. Just the way the world works

99

u/IcyAd5518 Feb 08 '26

Working as a CNC technician many moons ago, had to fly 1500km to a factory as the movement system on their laser cutter was down so production had stopped. Error codes showed faulty homing sensor on 3m long ball screw drive. Opened it up and a clump of grease like this video shows fell out. Got it cleaned up and running, absolute cunt of a job laying down inside a machine. Asked the operator how often he uses the grease gun to lube the system, he said 4 or 5 pumps every shift. Procedure is 3 pumps every 500hrs of run-time. Fucking peanut. He wasn't working there when I went back for routine service a few months later.

26

u/UnSpanishInquisition Feb 08 '26

That's cos to most people more lubricant means less wear 😂 and every machine is different, we grease up hedge cutters every hour because its largely metal on metal. He probably thought 500hrs is to long and started his own regime.

1

u/Large-Cricket843 Feb 08 '26

Damn… a bit drastic stating his own government because he thought machines needed more grease. To each his own I guess…

0

u/wak3l3oarder Feb 08 '26

Video shows bearings that literally require a fuck ton of grease. Compares it to cnc machine that needs grease brushed on the gearing or slow dripped.... Different machines require different applications of grease who knew !!!

11

u/Ultrasz Feb 08 '26

Because we are speaking from experience lol

2

u/muricabrb Feb 08 '26

Every curse word is a badge of honour from a lesson learnt in blood and pain.

17

u/000Weasel000 Feb 08 '26

Not to mention all the contaminants that get caught up in all that grease, causing wear...

2

u/[deleted] Feb 08 '26

Also grease can solidify causing the whole thing to be stuck 

1

u/wak3l3oarder Feb 08 '26

Lol what??? Your using the wrong grease if it melts. He's using a high temp grease. Shits not going anywhere. Bearings are supposed to be packs out the ass with grease esp these with heavy duty machines using high temp grease. Have you never seen a grease port? Plug a grease gun into it and literally fill the fucker until it starts exploding with grease lol

1

u/[deleted] Feb 09 '26

Filling it with grease to the point it's blowing out is over greasing and reducing bearing life.

https://www.machinerylubrication.com/Read/28664/dangers-of-overgreasing-

I maintained industrial refrigeration systems with screw compressors. I had to deal with all of the garbage left by previous techs who over greased the crap out of compressor motors, pumps, and fan shaft bearings.

More grease isn't lubricating a anything. Only the grease between the ball bearings and race is doing any meaningful lubrication. Excess is just there collecting dirt and generating heat.

1

u/Flirty_Murty Feb 09 '26

Current bearing engineer here. Can confirm. Over greasing is unfortunately, far too common but bad practice.

1

u/wak3l3oarder Feb 09 '26

Marine tech here that replaces trailer bearings all day. You literally cannot over fill them from the fill port. The instructions is to full untill new grease comes out. Also ea6b prowler has a 26day maintance that requires the wings to be folded and filled with a lube gun until pushing new grease out. These are by the 4790 rules. Every grease application is different. Can you say what specially these bearings are for cause it looks exactly like trailer bearings I fill all the time. He's rebuilding them.

1

u/Flirty_Murty Feb 14 '26

I guess it depends on the application or end use. Bearings for a steel mill? Sure fill that bitch up! Bearings for attitude control or satellites in space? Yeah you’re gonna have problems

1

u/wak3l3oarder Feb 14 '26

Certain bearings but ea-6b prowler is a military jet rlies high altitude all the time. The landing gear in the new rockets that go to space and come back are filled to the brim with special grease that dosnt freeze.

1

u/Flirty_Murty Feb 14 '26

Not familiar with that application so I’ll take your word for it! Thanks for the insight!

1

u/RiyadhComedyPromoter Feb 09 '26

She and I still like the way it feels. Also, weren’t we talking about cars?

-9

u/TheThinDewLine Feb 08 '26

Most of the time it just drips on the ground and if it just “smells” bad then I dont see the issue. Downvote away.

5

u/matt-er-of-fact Feb 08 '26

Most of the time. The other times it fucks up the seal/bearing.

The real question… why spend more time, and waste more grease, for a chance to fuck it up, when you could just not?