Definitely doing the conversion. Got my seal of approval 😁 you might have to speak to graham about a handbrake upgrade for the old girls. Keep up the good work Matt.
Sorry Matt I was suppose too type in Allen. Spent a few minutes with a good friend, talking about his GQ. I must have court stupid of of him. 😂 Keep up the good work
Just changed an axle seal and the bearing is submersed in gear oil.I wasn't sure if it would even hold onto the grease,so THANKS for answering my question...Have a DANDY !
I think most if not all Semis run oil bath instead of grease. Got a sight glass on each hub to check the level too. Oil is superior as long as it is changed regularly and kept at the right level.
Two piece seals like that are the gold standard for industrial and commercial grade equipment it takes the seal wear surface and makes it the serviceable part of seal instead of having a motor or axle shaft or housing with a wear groove that requires a fix before it can sealed. Grease will dry out and become a paste inside sealed cavities. Wet bearing housings do not suffer from this. Wet housings need to be inspected but the same applies to greased housings. I have several trailers In my business and my failures stopped when I changed to wet hubs. The needed periodic brake check or tire replacement gets the oil level checked more than often enough.
Matt, Are you still running two piece seals? How are they performing? Have you experienced any issue with water/dirt egress into the labyrinth? 3:40 Thanks
correct! many people don't know what grease actually is, and there's a common misconception, the "thicker" the grease is, the better it lubricates", wich isn't true at all. The base oil is the money, and that's where cheap greases are different from quality grease
I can’t honestly say other than to say i get far better life from an oil run bearing than a grease run bearing. Think of the bearings in your vehicle that run in oil. They last far better than the grease run bearings. This is because oil is always at the area that needs lubrication.
@@MadMatt4WD yes won't argue with at Matt. Oil will deftintely flow in the bearing better, and help it cool. The seal you discussed is commonly found in the planetary reduction of construction and agriculture vehicules, serving the exact same purpose as here. do you run it in the front as well? can't see you using it there, because of the link with the CV cavity, but if you found a way, all the better! Cheers, nico
Makes sense to me. But if you're going to do it this way, (oil instead of grease) why not have your supplier build you a "sight glass" style hub, like on semi trucks and trailers. Then you could easily drain the old oil out periodically, and put new oil in.
So why do manufacturers make CV joints and universal joint in grease? The parts see the even amounts of load if not more?? This is an argument that’s older than hide and go seek.
I’ll have to disagree with you there. Most bearings in your vehicle are lubricated by oil. Think of bearings in the motor that are oil lubricated. Gearbox bearings, diff bearings.
I've always thought oil would be better than grease but this video doesn't really prove much either way. Why? because the bearings were dry as chips, the hub was dry, etc etc etc. You had already pulled it down and cleaned it all off. As a mechanic and a teacher (of Automotive) I'd appreciate it if you would do a valid test and actually drive the vehicle and then strip it down and show us that happening in the video. Call me a cynic but I've always been suspicious of videos etc that have things already prepared. Its a bit like the old cooking shows where they say "and here's one I prepared earlier", it really doesn't teach or prove anything except that the person expects people watching to believe their word as though it is gospel. Your new winching videos are great but this one needs to be redone to prove your point.
Hi Michael. Thanks for the comment and thought but no thanks for the slight on my character by suggesting I've lied. This video is honest. If you take the time to watch it again you will see towards the end the oil is running out onto my tyre. The reason the bearing looks clean is because the oil is clean. Now in any video production we can fudge thing if we wanted too but I don't work that way. Did you watch the video I reference and Link Too? By the way I'm also a mechanic and have worked as a teacher of mechanics.
@@MadMatt4WD I never suggested you lied, I am however suggesting you make your video longer and show everything. When I teach I teach my students to be wise consumers of information. The fact you explain why it is all clean doesn't explain why it is all dry. Leaving bits and pieces out, as you have obviously done, doesn't make for an educational video rather it makes for a video that doesn't explain much to people who are visual learners. Try not to take constructive criticism as a slight on your character but take it is a learning tool to help you make your videos helpful to a wider demographic.
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Classis Range rovers had oil bath rear wheel bearings. Also the front bearings and cv joint were in oil too.
Best way to do it.
Definitely doing the conversion.
Got my seal of approval 😁
you might have to speak to graham about a handbrake upgrade for the old girls.
Keep up the good work Matt.
Ok I’ll speak to Graham. Who’s Graham?
Sorry Matt
I was suppose too type in Allen.
Spent a few minutes with a good friend, talking about his GQ. I must have court stupid of of him. 😂
Keep up the good work
Got it
Just changed an axle seal and the bearing is submersed in gear oil.I wasn't sure if it would even hold onto the grease,so THANKS for answering my question...Have a DANDY !
Glad it helped!
Just converted a Flatbed Gooseneck 10K Axels from grease to Oil bath. Thank you for the information and the video.
Glad it helped!
I think most if not all Semis run oil bath instead of grease. Got a sight glass on each hub to check the level too.
Oil is superior as long as it is changed regularly and kept at the right level.
Correct and yet the fight continues.
I agree,I used stp oil treatment on my motorcycle wheel bearings
Two piece seals like that are the gold standard for industrial and commercial grade equipment it takes the seal wear surface and makes it the serviceable part of seal instead of having a motor or axle shaft or housing with a wear groove that requires a fix before it can sealed. Grease will dry out and become a paste inside sealed cavities. Wet bearing housings do not suffer from this. Wet housings need to be inspected but the same applies to greased housings. I have several trailers In my business and my failures stopped when I changed to wet hubs. The needed periodic brake check or tire replacement gets the oil level checked more than often enough.
Absolutely but the amount of heat i get for promoting this. My service intervals have dropped and reliability improved.
Matt,
Are you still running two piece seals? How are they performing? Have you experienced any issue with water/dirt egress into the labyrinth? 3:40
Thanks
They’re a great seal. Never had any issues with them. I have them all over the 4wds now.
Well done...👍
could you do that on an alternator bearing?
No I don't think so. Also theyre usually really cheap so I just change them out.
I love this idea...
😉
What about nlgi 00 grease
I do t know
How long do you run your bearings Matt?
Interesting topic, considering Grease is Oil with a suspension additive (thickener)
correct! many people don't know what grease actually is, and there's a common misconception, the "thicker" the grease is, the better it lubricates", wich isn't true at all. The base oil is the money, and that's where cheap greases are different from quality grease
I can’t honestly say other than to say i get far better life from an oil run bearing than a grease run bearing. Think of the bearings in your vehicle that run in oil. They last far better than the grease run bearings. This is because oil is always at the area that needs lubrication.
@@MadMatt4WD yes won't argue with at Matt. Oil will deftintely flow in the bearing better, and help it cool.
The seal you discussed is commonly found in the planetary reduction of construction and agriculture vehicules, serving the exact same purpose as here.
do you run it in the front as well? can't see you using it there, because of the link with the CV cavity, but if you found a way, all the better!
Cheers, nico
No I don’t run oil in the front. I would if I could
@@MadMatt4WD i got an idea for it now that youre talking about it, gonna see if it works when i pull my hub appart
Awesome
Makes sense to me. But if you're going to do it this way, (oil instead of grease) why not have your supplier build you a "sight glass" style hub, like on semi trucks and trailers. Then you could easily drain the old oil out periodically, and put new oil in.
We could but it's not really needed. the oil changes happen with a diff oil change.
@1:57, "exposed to probably a bit of oil and water"? I would certainly hope they were exposed to a bit of oil lol.
LOL. yeah I guess I do too.
I wonder what Allan Gray would say about this hmmm 🤔
I asked him today. He understands it and sort of agrees. He had to be a bit koy about his reply due to legal reason he said.
Haha my handbrake is useless too 😂
✌
So why do manufacturers make CV joints and universal joint in grease? The parts see the even amounts of load if not more?? This is an argument that’s older than hide and go seek.
They are under a different type of load to a bearing for one.
Both oil and grease are not good lubricant for bearings if they are not EXTREME PRESSURE lubricant, without that friction can wear out ANY bearing🙄🙄🙄🙄
I’ll have to disagree with you there. Most bearings in your vehicle are lubricated by oil. Think of bearings in the motor that are oil lubricated. Gearbox bearings, diff bearings.
I've always thought oil would be better than grease but this video doesn't really prove much either way. Why? because the bearings were dry as chips, the hub was dry, etc etc etc. You had already pulled it down and cleaned it all off. As a mechanic and a teacher (of Automotive) I'd appreciate it if you would do a valid test and actually drive the vehicle and then strip it down and show us that happening in the video. Call me a cynic but I've always been suspicious of videos etc that have things already prepared. Its a bit like the old cooking shows where they say "and here's one I prepared earlier", it really doesn't teach or prove anything except that the person expects people watching to believe their word as though it is gospel. Your new winching videos are great but this one needs to be redone to prove your point.
Hi Michael. Thanks for the comment and thought but no thanks for the slight on my character by suggesting I've lied. This video is honest. If you take the time to watch it again you will see towards the end the oil is running out onto my tyre. The reason the bearing looks clean is because the oil is clean. Now in any video production we can fudge thing if we wanted too but I don't work that way. Did you watch the video I reference and Link Too? By the way I'm also a mechanic and have worked as a teacher of mechanics.
@@MadMatt4WD I never suggested you lied, I am however suggesting you make your video longer and show everything. When I teach I teach my students to be wise consumers of information. The fact you explain why it is all clean doesn't explain why it is all dry. Leaving bits and pieces out, as you have obviously done, doesn't make for an educational video rather it makes for a video that doesn't explain much to people who are visual learners. Try not to take constructive criticism as a slight on your character but take it is a learning tool to help you make your videos helpful to a wider demographic.