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Originally Posted by SquidPuppet
(Post 17505470)
The cups and centering rings are not made of steel. Ever hear of brinelling?
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Originally Posted by Scrodzilla
(Post 17505478)
Dude, it's a bicycle headset.
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Originally Posted by TejanoTrackie
(Post 17505492)
Sure, the races are the parts that can get pitted if they are not hard enough, which is why they are NOT made of aluminum.
Take a minute away from trying to prove everyone wrong, and spend a moment reading about brinelling. It's what causes the sticky indexing feeling in a headset. |
Originally Posted by SquidPuppet
(Post 17505514)
LMFAO. The bottom cup and crown race support all the front weight. The bottom cup is where the brinelling takes place, not the race. The bottom cup is aluminum.
Take a minute away from trying to prove everyone wrong, and spend a moment reading about brinelling. It's what causes the sticky indexing feeling in a headset. |
Originally Posted by TejanoTrackie
(Post 17505529)
Well, you clearly are clueless on this one, so I'll just let you wallow in your ignorance.
So, Mr. condescending, why not explain what I have wrong? A pitting vs brinelling conversation will certainly expose your lack of knowledge. Perhaps you'd get off your high horse and listen if Sheldon Brown were talking. "Indexed Steering" ("Brinelling") All of the other ball bearings on a bike spend their lives rotating round and round, but headsets spend most of their time pointing straight ahead. Sometimes you will see that the bearing balls have created a neat row of little dents in the bearing surface of the lower frame cup and/or the crown race. This creates the effect commonly known as "indexed steering" where the balls sort of "snap" into place, and the fork tends to stick in the straight-forward position. |
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Originally Posted by Scrodzilla
(Post 17505643)
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[MENTION=168526]TejanoTrackie[/MENTION] i read that an airport in FL recorded a temp of 139º today, while us chumps up here are freezing our rocks off in the snow getting snowed on
super jealous of basically anyone living anywhere else this week |
Originally Posted by SquidPuppet
(Post 17505616)
Right. Just like Ashtabula was NOT a brand. We learned how "correct" you were on that one, eh?
So, Mr. condescending, why not explain what I have wrong? A pitting vs brinelling conversation will certainly expose your lack of knowledge. Perhaps you'd get off your high horse and listen if Sheldon Brown were talking. And that ^ is why I cared about the hardness. What you fail to realize is that Sheldon Brown was talking about steel cups, which have the bearing races machined directly into them, whereas aluminum cups need to have steel inserts to provide the bearing surface. Also, in the case of cartridge bearings, the races are integral to the bearings, and the cups themselves do not experience any direct contact with the bearings, nor does the so called fork crown race, which is merely a base for the cartridge. So, again I'll state the fact that the hardness of the aluminum cup material is irrelevant to the proper design of a headset, as I'm sure the CK rep could have told you had you'd given him a chance. |
Originally Posted by Mumonkan
(Post 17505729)
@TejanoTrackie i read that an airport in FL recorded a temp of 139º today, while us chumps up here are freezing our rocks off in the snow getting snowed on
super jealous of basically anyone living anywhere else this week |
Originally Posted by TejanoTrackie
(Post 17505739)
First off sweety, you need to take your midol and unbunch your panties. I just happen to know what brinelling is all about, as I specified bearings for machinery that I engineered in my business.
What you fail to realize is that Sheldon Brown was talking about steel cups, which have the bearing races machined directly into them, whereas aluminum cups need to have steel inserts to provide the bearing surface. Also, in the case of cartridge bearings, the races are integral to the bearings, and the cups themselves do not experience any direct contact with the bearings, nor does the so called fork crown race, which is merely a base for the cartridge. So, again I'll state the fact that the hardness of the aluminum cup material is irrelevant to the proper design of a headset, as I'm sure the CK rep could have told you had you'd given him a chance. |
Originally Posted by TejanoTrackie
(Post 17505739)
whereas aluminum cups need to have steel inserts to provide the bearing surface.
What companies have a steel insert in their aluminum cups? So, again I'll state the fact that the hardness of the aluminum cup material is irrelevant to the proper design of a headset, as I'm sure the CK rep could have told you had you'd given him a chance. |
Originally Posted by TejanoTrackie
(Post 17505800)
Yeah, this was just a very good day down here today, and is well above normal, so I'm just lucky to be able to take advantage of it while it's available.
Abita Springs brewery (makers of Turbo Dog and Purple Haze) is close to here. That would be a great ride. |
Originally Posted by Scrodzilla
(Post 17505822)
So much "Oh snap" was just served up hot & fresh. Free delivery too!
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Originally Posted by SquidPuppet
(Post 17505891)
Really? Tell that to FSA. They use an angled, exposed needle instead of a ball. And their cups do NOT have a steel insert.
What companies have a steel insert in their aluminum cups? It does if the balls or needles come in contact, as does FSA's. |
Originally Posted by SquidPuppet
(Post 17505891)
Really? Tell that to FSA. They use an angled, exposed needle instead of a ball. And their cups do NOT have a steel insert. Their crown races are aluminum too. At least on the Orbit series.
i also have a headset thats 27 years old with caged bearings on a steel race and there is no brinelling |
All of this CK talk has inspired me to buy one for my #kilott .
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Originally Posted by Mumonkan
(Post 17505729)
@TejanoTrackie i read that an airport in FL recorded a temp of 139º today, while us chumps up here are freezing our rocks off in the snow getting snowed on
super jealous of basically anyone living anywhere else this week |
Originally Posted by Huffandstuff
(Post 17506162)
All of this CK talk has inspired me to buy one for my #kilott .
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I have two fsa pigs. They are headsets. They have steel in them.
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They're pigs because they are steel. I dont know why but I have one on my Surly.
Today I got a bit closer to mastering this overhead welding thing. No globs of molten metal raining down on me or some ****. http://i.imgur.com/JuQ2s9L.jpg |
I really need to learn to weld.
Would be a. Good skill to have You learning for fun or for work opportunities? |
Training for certifications.
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Originally Posted by hairnet
(Post 17506213)
They're pigs because they are steel. I dont know why but I have one on my Surly.
Today I got a bit closer to mastering this overhead welding thing. No globs of molten metal raining down on me or some ****. ]
Originally Posted by TejanoTrackie
(Post 17506204)
But dude, they refuse to divulge the material specs for their headset cups.
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Originally Posted by Huffandstuff
(Post 17506255)
Yeah, but at least I can have a sweet purple headset.
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