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Come in, make yourselves at home.
Thank all of you for the other thread on bearings, I hope you don't mind it too much it was my birthday present to myself.
Laughed so hard I almost pissed myself, in my own defence I figured since all of my threads get ripped to pieces and ruined I might as well enjoy myself.
However we are still left with the question on how do we determine, what are the best bearings to use in MTB applications?
Which bearings will last the longest and give the best value for money?
I have a radical if somewhat idiotic suggestion for this day and age, we that is to say STW and those of us that meet here! could investigate the situation for ourselves.
On the bright side since I have already done a lot of investigating of the subject we have my experience to fall back on, if we get stuck.
I believe that Performance bearings with cages if they are at reasonable prices and fully pregreased are the best bearings to run.
Firstly: because they are made of superior materials in terms of their construction of the races, balls or cages and also seals.
Secondly: because the pregreasing with the right grease makes them a lot more water and dirt resistant and less likely to fail.
I prefer the caged bearings because when I work the grease into the bearings by rotating them you end up with a layer of grease on the outside of the cage and another layer on the inside.
In my experience this makes it a lot harder for the water and dirt to get to the actual balls or inner part of the races and to wear them out prematurely.
This is the first test or experiment I suggest that we run it is not the only test we will need to do and is just the beginning if we want to truly understand what is required.
However this is one of the first things I did and a good place to start.
Is there any difference in the rate at which performance and budget bearings rust and does pregreasing the bearing make them last longer?
Type of bearing from left to right
Budget Enduro SKF (standard) SKF (pregreased)
NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Really?
🙄
Zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz!
You should have added a pregreased budget onto your list 😉
Oy Nick, you coming out for Curry in Huddersfield Sat night or what?
We can talk about bearings if you like.
what a bag of ****
For ****s sake change the record. We get it you sell bearings!
you sell bearings
He doesn't, he only gives them away.
Let us research it and find out.
I am happy for other people to do this as well, you want proof I'm offering it to you.
STW would you rather argue or discover?
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song[/url]
BTW That's really not how you pronounce Commencal you mong.
[url= http://nskeurope.com/cps/rde/xchg/eu_en/hs.xsl/innovative-607.html ]Molded oil bearings[/url] Tried these?
Going strong in some applications at work...your local bearing supplier like Brammer etc might even be able to get you some....:)
Honestly missed a lot of this, so let me ask without any irony do you sell bearings Kaesae? Do you do sets for 2004 Spec Enduro?
Email in profile. Cheers.
DAY 1
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How much honey do you get through??! Does Winnie the Pooh live with you?
I've been refraining from posting for a long time...
However, as a civil engineer, can I point out that the corrosion rate for steel is pretty low when immersed in water.
Rust = iron oxide
What is that experiment trying to prove anyway?
Not sure the labels are aligned with the lid stoppers and 3in1 come on who uses that now adays?
Get some SS ones in there..what about zz? and Moulded oil as I suggested. How about giving them the LP hose test? What about grit?. How do the seals fair in the real world.? What does 4 bearings in honey jars tell us? How about manufacturer's data sheets...a high percentage of premature bearing failures are down to incorrect fitting..etc etc
i just ride a hardtail.
Unbelievable.
What tyres for bearing experiments?
DAY 2
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For the underwater cyclist, these results will be quite a revelation.
SFB might be interested - afterall, he used to take his Rohloff swimming!
venus
That pic sums up the OP's grasp of engineering, chemistry and life in general.
I will be watching this experiment with keen interest as I always keep my new bearing in honey jars 2/5 full of water before I fit them into my hubs.
Not going to get dragged into this one. I am a genius according to Kael anyway, so I know it all to!
Must resist, must resist.
DAY 98
[img] [/img]
Bearings killed by drowning ! 😆
i 'lol'ed @ uplinks post
I take it this is your turn at returning us the favour of ammusing you .... I genuinely chuckled at this entire thread ....its better than the last one by miles !
I don't understand what the problem is here. I've got a few bearings in my bike and finding out ways to make them last longer/cheaper would surely be good.
Criticizing the experimental technique seems fair enough, but just generally being gratuitously luddite seems a bit, well, petty.
What am I missing?
why not put the blue sealed bearing in the jar with the blue lid, as a control like, otherwise we'll all be confused. also, was it clear honey, or that cloudy stuff with all bits in? is it the extra expensive honey, much better in bearings than the cheapo chinese honey i would think?
But surely the experiment is null & void due to weighting in your favour - ie. the Katec bearing has the BLUE lid.
Crivens
Wow. Even by kaesae's standards that is impressive. Mate, did you actually do EVEN THE SLIGHTEST bit of research into how corrosion testing is usually done?
TBH most standard tests wouldn't be too effective as the bearings would still be static. As would conditions in the chamber. But THAT?
In fact, I refuse to believe ANYONE is ignorant enough to actually think that that will give any information on the corrosion resistance of those bearings.
Kaesae must a joke. He just can't be for real.
I'm 31 so not down with the kids enough in relation to YouTube etc, however I reckon this whole saga is one of these viral adverts. STW, Descent World and Southern DH; as well as probably plenty of other forums I don't visit are wasting miles of threads wittering on about all this pish. It's got to be the most elaborate advertising campaign ever to hit mountain biking.
Not sure what it's for though - bearings?
i'm just going out....i may be some time.
uplink...nice
what's on the end of the stick, Vic?
Ba Cut (1923–1956) was a military commander of the Hòa H?o religious sect, which operated from the Mekong Delta and controlled various parts of southern Vietnam during the 1940s and early 1950s. Ba C?t and his forces fought the Vietnamese National Army, the Vi?t Minh, and the Cao ?ài religious movement from 1943 until his capture in 1956. Known for his idiosyncrasies, he was regarded as an erratic and cruel leader who fought with little ideological purpose. His sobriquet came from the self-amputation of a finger as part of a vow during his teenage years to defeat the French colonial forces; he later swore not to cut his hair until the communist Vi?t Minh were defeated. Ba C?t frequently made alliances with various Vietnamese factions and the French. He invariably accepted the material support offered in return for his cooperation, and then broke the agreement—nevertheless, the French made deals with him on five occasions. In mid-1955, the tide turned against the various sects, as Prime Minister Ngô ?ình Di?m of the State of Vietnam and his VNA began to consolidate their grip on the south. Ba C?t and his allies were driven into the jungle, and their position was threatened by government offensives. After almost a year of fighting, Ba C?t was captured. He was sentenced to death and publicly beheaded in C?n Th?.
Now that's not a bad attempt at one way of testing how bearing seals will resist the ingress of water. I think it's deeply flawed but credit to kaesae he's making an effort to do something scientific, i.e. objectively repeatable and verifiable.
I think the major flaw is that it doesn't adequately recreate the sort of conditions bearings tend to be subjected to in real life. In fact the only way (well, the cheapest way) I can think of to test bearings alongside each other in real life situations would be to fit two different sets to a bike.
A symmetrical suspension design would be a good start; I know Specialized supply their dealers with frame prep and bearing pulling/seating kits so something like an Epic would be good, the mechanic could ream and face each mount point in the frame to ensure all fittings are clean and the angles are good. Then, on the drive side of the frame fit Katec bearings and on the non-drive side fit another brand. Granted, this only allows you to compare two kinds at a time, and you would probably have to repeat the test with new bearings and mounted on the opposite sides of the frame in order to ensure that an asymmetrical load through the frame didn't skew the results, but with time and effort this would probably be the best way to actually compare the bearings. It would simply be a matter of seeing which side developed play first, how fast that play developed and what state the bearings were in after prolonged testing.
Just saying, like.
: P
Or you could just fit decent ones properly to start with
strange that even total lunatics sound nice and friendly with a Scottish accent.
The real question is how does anyone eat that much honey? Could this be a new environmentally friendly bearing lubricant?
Kaesae nice try....but how are you going to accelerate the oxidisation process by starving the bearings of oxygen 😕
Some people are still being sucked in - unbelieveable!!! The guy doesn't have a clue, listen to the engineers on here asking questions time after time and getting absolute rubbish replies from the bearing greaser.
Anyhow will the bearings 'absorb' that 'energy' stuck in honey jars?
i still think my reply holds true
Kaesae is a genius... This thread is proof.
Kaesae, apparently the only true bearing test is to shove them up your arse and fu(k off while you're doing it.
Fivespot - plenty enough DO in water to allow oxidation to commence.
Kaesae - Comedy genius!
who has allowed this forum to become a giant advertising site for online retailers?
what with this shyte and the thread about travellers, new lows have been reached, even by stws low standards
peace out, I'm off to Wharncliffe....
Please mods, do the right thing!
who has allowed this forum to become a giant advertising site for online retailers?
It's a fair comment, but never in the field of MTB history has a reputation been damgaged so much, so many times, for one man.
He's long since emptied the AK47 into alternate feet, and it's getting silly.
Its just the bloody stumps left now.