These Craftsman’s are Experts in Making Heavy Duty Sprocket Gear from old Ships High Strength Sheets
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- Опубліковано 27 бер 2022
- A sprocket, sprocket-wheel or chainwheel is a profiled wheel with teeth that mesh with a chain, track or other perforated or indented material. The name 'sprocket' applies generally to any wheel upon which radial projections engage a chain passing over it.
Sprocket Specifications
• Pitch - 1″ (one inch) and larger
• Face width - up to 6″ (six inches)
• Single piece or segmented pieces
• Bore
• Counterbore
• Drilled mounting holes
• Mud relief notches
• A, B and C types
• Hubs with spline or key way
• Induction case-hardened or through-hardened
These heavy duty sprockets enable movement of material, scraping, mixing or blending.
Applications
• Asphalt Paving equipment
• Concrete Paving equipment
• Construction equipment
• Conveying equipment
• Elevating Scrapers
• Forestry equipment
• Road Building equipment
• Trenching equipment
#Heavydutysprocket #manufacturingprocessofsprocket
#cranesprocket
#pakistanitruck
#amazingtechnology
#gear
#gearmanufacturing - Навчання та стиль
В конце "термичка" улыбнула.
--Закалено?
--Ну да, вот сининькие зубья...
Ага, мне тоже понравилось) "Давай покрасим зубы в синий цвет" 🤣
Teeth cut with an eyeball sharpened cutter on a bent arbor and then heated with a torch to make it appear to have been heat treated. Good luck with your purchase.
out of it all the hand sharpened cutter had me spitting my coffee out!😂
looked the part finished though!
He must do some calculations beforehand to lineup all the teeth and complete a full circle
Wouldn't you need to quench the steel to actually harden it? What's the point of using a blowtorch?
@@JohnDuthie To make it appear to have been done properly. And a lot of this garbage is built to look like a good part more than to actually be a good part.
@@billmiller7138 I'm watching their video -- ua-cam.com/video/P_5F-ZITFQs/v-deo.html where they heat up a Hydraulic Cylinder to unbend it. Reading the comments says that will ruin the metal. Learning a lot from the mistakes haha
The recycling of old ships, I think it's pretty cool! Thank you gentlemen for letting us see what you do
Fake heat treatment haha! The dude with the torch had a face knowing he was ripping someone off lol.
More skilled than an online influencer.
Well... that’s not really a high bar.
термообработка зубьев супер))
ТВЧ-по пакестонски👌
А главное красиво .
Да уж... Особенно порадовало затачивание фрезы. Мне бы за такую "работу" оторвали руки вместе с головой. И тому кто этому научил. ))
Ну, в исполнении малых мастерских это выглядит либо так, либо сверление по впадинам и обработка зубьев болгаркой. И знаете, оно работает, и долго. Тем более в условиях невозможности купить звездочки с нужным количеством зубьев в n-ном количестве. Попробуйте купить в частном порядке, узнаете много интересного о российской торговле продуктами тяжелой промышленности. Закалка тут показана фиктивная, конечно. А в остальном - очень рабочий способ.
у тебя такое не заработает, потому что "мала ВААААГХ!"
@@guai9632 согласен
Всё как я люблю : гнутые электроды, заточка модульной фрезы на наждаке, удары кувалдой по станку, и т.д.
Only one of them is flat out wrong and it's the sharpening
Выбор скорости шпинделя перекидкой ремней...
People who've never scene a lathe before: Wow, so skilled
Actual machinists: shocked and horrified laughter while trying not to vomit.
Hmmm... while there are some air quenching alloys out there I doubt scrap boat hull plates is one of them
i mean these are the same people who think passing a torch over the teeth for a few seconds is hardening the steel..... 16:08
But it is beautiful and looks like high-frequency hardening🤣👍
The offset arbor is truly special lol.
Закалка почьти как ТВЧ-шЫкарно..😁
И красиво😁👍
Those guys here would own their own shop in record time..
Fake heat treatment
Kearny and Trecker are rolling in their graves.
and that 3H will soon join them.
16:10 Fake heat treatment ?
i hear the heat treatment issue at 16:10 but i w as looking at the cutter sharpened on a sandstone, reducing the pitch after every sharpening, wondering how those chains fit :)
With the lack of a true heat treatment, these sprockets are a "wear to fit" item.
Not dissing them, they use what they got. That's why they make 6 of them...so, when one wears out.
@@luckydubeinrc5165 The milling cutter is made "by eye" according to the sample, you just weren't shown. The method sucks, but if a universal grinding machine is not available, then it is quite working. Although I would rather have drilled holes and processed the teeth with a grinder, it would have turned out faster and easier.
@@_MadFox the sprocket looks just great, my concern was the fact that the cutter sides were ground down = reduced pitch= chain shave= chain pitch and sprockets don't match, .chain climbs over sprocket, or worse leading shaft or bearing failure if bearings were used, if no bearings then centre hole/key ware+tare
i get it, it works for them, just adding my ten cents
закалка супер)) почти как ТВЧ))))
Lol bots vs comments of people who know the profession. Trash is trash now matter how you try and sell it
Good thing they have their PPE,S on
من سار بين الناس جابراً للخواطر .. أدركه الله فى جوف المخاطر؛ جبر الله ﷻ خواطركم بما تحبُّون ..🌹🌙🤲 اللهم امين
Импортозамещение 😂👍
I would actually enjoy a job like this
ha ha ha, i like the casual attitude of the wheel barrow guy. i guess the gears are being sent for heat treatment. usually its done in a furnace, but i guess the guy doing the heating made it appear like roasting a beef patty on the stove.
Buyer: the teeth were wearing out quickly...
Seller: are they blue? Blue ones. Claims are not accepted!
He's just giving them color so that they appear as hardened but they're dead soft. Actually the steel isn't even hardenable afaik so no wonder they do it like that
فل پاکستانی فراڈ
جیسے حکمران ویسی عوام
میلڈ سٹیل کو کیا اسی طرح ہارڈ کیا جاتا ہے
ویسے کمال ہے
Haaaaaaa
Các bạn làm rất tốt thật tuyệt vời
I'm surprised that guy has all his fingers, those long and stringy chips are deadly.
They can't use Iscar or Sandvik products, it's insanely expensive. And this is pointless when working with scale and locally hard metal. It will not work to sharpen the chip breakers either, I am sure that the soldered plate lives with them for less than five minutes before sharpening. Thus, ribbon chips are the least evil of the solutions available here.
What a joke..
AMAZING SKILL
Indian works 🇮🇳🇮🇳🇮🇳🙏
เยี่ยม👍
Good
Больше всего люблю читать коменты под такими видео.
สวัสดี ครับ 👍😍😍😍
that is not how you HARDEN metal lol
That is good steel- high tensile plate. Machines well.
It could be like 355MPa but I would be surprised if it's better than that. The dull finish and those chips give it away that it's not very hard
Nice working
Amazing
Труженики!!!
Fantastic hob!
Gostei da chave inversor kkkkkkkk esses caras são doidos
that power shaft on the mill is sure bent; think they would make another one with the lathes they got.
It looks like you are not familiar with old milling machines, from the word "at all". These are the tubes that hold the milling cutter, and not the mandrel shaft on which the milling cutter is fixed. They were too lazy to make bushings, so they cut the pipe. I don't justify them, but this is a real working moment.
After I saw that I started thinking that it might actually be beneficial to piece, especially for preventing overheating
Those lathes are from the early 1940's. I have never seen a machinist or tool and die maker true up a blank using a heavy hammer. Damn, that's a time warp video.
The old machinist we had in the Montana sawmill I worked with from 94 until 2015 used a babbitt headed hammer to true his parts in the 4 jaw. He learned the craft at an Alabama paper mill in the 60's and 70's if memory serves me correct. He said there was a lot of old machinery in the machine shop.
Arsenic and old lathe
Guys, what kind of time distortion is o_O? This is reality. Get out of your cozy little America and Europe into real life. You seem to be a little surprised by this reality🙄
@@_MadFox reality is different depending on where you are and how you look at it
Nicee good
@8:05 clears cutter of dross with index finger while spinning part. Hell, he has 9 more if he looses that one! And that shaft boss is held on by only bead welds which he cut 1/2 off. I wonder the shear strength of that weld…….
He is pro
@@aydinali5381 Not sure if u are being sarcastic or not. So ok, define a pro if you can. Fast reflexes, unneeded fingers, x-ray vision…………
@@BackByte i oprate lathe one year & this in this short time i experenced body automaticaly know what its doing.
Обожаю смотреть миньёнов
chuc mung nam moi den co giao
I see the transporter got his cut, started out with 3 delivered 2, I didn't know that process was international.
Probably delivered one to another place?
The treatment at the end is just for looks, the point of heating should be to cold plunge after not chuck on a dolly cart and haul down the street
Really know all? Ever hear of A2, A3, A4, A6, A10 and D2? Well obvioulsy not as they all air quench to harden and D2 is a likely candidate here because of its toughness, ease of machining and low heat treat distortion. They could easily be using any of the air quench steels. Maybe shut you're pie hole when you have minimal knowledge of a subject.
Not heat treated at all, critical temps not reached. Looks maybe burning off slag.
@@ehkerr. How do you know we weren't seeing the annealing stage of heat treating, which doesn't reach the triple point? He wasn't heat treating the sprokets that we saw delivered, those were already being worked on and could easily be annealed. I suspect D2 steel is being used and that has to be annealed before use
@@hepburn118 I suspect that this is an ordinary easily welded sheet steel from the side of the ship, which does not care about hardening at all😁
@@_MadFox No it doesn't. I tried hardening ordinary mild steel once, I only got about 13 Rockwell from memory, might have been 3. I know it wasn't alot, but it was an interesting excercise when I was an apprentice. I don't know the composition of ship steel though, if it has enough carbon in it, it might at least get into 40 to 50 Rockwell and be in the tough range with heat treatment. However, even heat treating low carbon steel will increase it's yield point by around 35% so that might make a pretty tough sprocket.
Considering the worn out old machinery, the end results I suppose are at least usable, but certainly not up to Western standards. My brand new tractor crankshaft (made in India) had journals that were ground with a taper of over half a thou in a one and a half inch length, plus it had a very roughly cut spiral oil groove with razor sharp edges that run against the rope seal. I bought it in preference to having the original one reground but regretted it later. Their definition of 'engineering skill' is certainly different to ours.
Резцедержка супер
Вполне рабочее решение для обтачивания огромных диаметров, когда станка нет и резец в стандартном положении не достает из-за ограничений габарита обработки. Я просто резец бы изготовил изогнутый, они решили так, их право.
i am sorry but i see in the cover the grandpa look a lot like zombie :D
Someone needs to tell them about setting the tool height as well
Good
These welders need eye protection so bad. You have to be careful even about your peripheral vision too. The stuff these people do is awesome but some welding hoods would make their lives so much better now and in the future.
Little red welding hood
I notice in all of these vids they seem to be using big iron powder rods. I know it's not good but you can get away with looking at it sideways or blinking for tacks. The heavy flux shields some of the UV. Not as evil as MIG or TIG
Good
I love my pakistan
Good
👍👍👍👍👍🌹
Я не понял, а зачем зубья грели? Слишком твердые, отпустили? Чего это было?
Пакистанское ТВЧ. )))
Это, типо, для внешнего вида. Чтобы побежалость появилась красивая )
@@user-kc5ix9le6h А то, что после этой процедуры, твердости не добавилось всем похер? Главное в нашем дела красота :)
Скорее всего, из-за того что фреза после многократной подобной заточки не соответствует диаметру ролика приводной цепи, они отпустили зубья для гарантированной притирки к цепи.
@@katkov000 да просто для красоты. Листовая сталь, кусок которой вырезан с борта корабля, в принципе не калится. Это ж что-то вроде нашей 09г2с.
Grinder axle is all over the place. What a joke.
Obviously the quality is terrible, but it's probably just for farm equipment. Those machines are from WWII
I am much more interested in the cost of the product per four people who produced it. Although, if these stars were not bought and they did not suit the buyer, I think that this workshop would not exist. Apparently, there is no choice, the quality is not available due to the high cost, they work with what they have...
Кувалда у токаря первый инструмент!
Good
Amazinggg 👌
Thanks
The skills involved, are truely awesome BUT not worth the potential risks that the gears have since they are NOT MADE as a single piece from a solid billet. The hub portion can easily snap off during use..!!
Большой проблемы в том что она не цельная нет . Но для того чтобы не цельная деталь была крепкой нужно соблюдать технологию сварки тут к сожалению это не было сделано . И в конце зачем то бесполезный нагрев зубьев , Для того чтобы метал стал тверже нужен нагрев + быстрое охлаждение , для отдыха металла (рекристаллизации) нужно удерживать деталь нагретой гораздо дольше . Тогда зачем они просто ослабили метал на зубьях . ????
@@leoscorp7791 для красоты😁
Nicee
Пздц у них организация труда . Представляю у нас так на улице с оживлённым движением чел сидит с автогеном .
Ты знаешь, это было бы неплохо. А то все стали такие чистоплюи, всё бы айфончик да ничего тяжелее мышки.
A cooling mechanism is not required?
nice work
agresive people
Craftsmen
Well I wouldn't like to grind a cutter by hand like that out of an old gear cutter, that's a tough job to get right, well done. You just need to make the kid use center and pilot drills with a bit of lube. Running a DTI over things now and again wont hurt either.
The cutter is now scrap metal
@@MF175mp They do their best with what they have. Just because you can't grind tool steel, doesn't mean they can't. All appretices ,when I was going through, all had to grind our own complex tools. Just because your training was poor, doesn't mean everyone's was. You didn't see the whole tool grinding so you have no idea what really happened. They may have a master shape to grind too like making a thread cutting tool and that would make that cutter very close to a factory grind and good enough for a chain sprocket.
@@hepburn118 if they could do that properly for a multi tooth cutter, which is very very difficult and I would never even try, why isn't the rest of the work up to those near perfect standards? They're more skilled than a Swiss watchmaker if they can pull that off
@@MF175mp We don't know one of them isn't that skilled, might easily be. Europeans don't have a monopoly on producing people skilled at working with their hands. They might have clearanced most teeth and just ground every third tooth to shape, sure what I would do and just run the revolutions a little higher. Why isn't the rest of the work prefect? They aren't all as skilled as each other, just like the rest of the world.
@@hepburn118 Well, it's a huge difference if you just have to do a tool that works, or one that actually needs to be accurate. Free hand grinding on a round grinding stone will never ever be accurate enough for a job like this. this multi tooth cutter is what gives the cogwheel it's shape afterwards. So if you're off just a bit, you will produce trash.
Шестерьню для велосипеда ? Сваркой отпустить ладно точили резали зубья а закалить ?Или еще не придумали ?
Возможно это самокал.хотя хз шо они там творят🤭
hahaha 7:08
Where you from
Pakistan you
Где дед с привъюшки ?
в конце не он на тележке возит звёзды на "закалку"?)
Интересно а они знают о существовании сотых и тысячных долей милиметра, и что их можно измерять специальными приборами?
Знают. Они ломаные коленвалы сваривают и протачивают, а так да, создаётся впечатление, что всё на пальцах...
13:30 somebody's crashed that machine before 😆
That thing is clapped out, on a side note I am really curious how it cuts straight
Gentlemen, well, open the fucking textbook and see how the horizontal milling machine works! Here you can see that the mandrel is not bent, but simply instead of bushings to hold the mill in place, two pipe trimmings were put in place. That's the whole secret.
Beautiful machine work I love manual machining work cnc sucks
Thanks
@@DiscoveringSkills u are hard working people I like that
Crude.
Резаком нагрели зубья и типо закалили?)
ну чтоб продать соседу нужна побежалость а не закалка ))
Хотя может и карго культ.
Nice
Skillful
Thanks
This part wont last longer.. Several reasons are there.
A piece is a piece even though this wont last long :D
I have used these wayside workshops for small jobs, they were okay and cost effective too. Some of them even know about metals and specs.
Moving parts, especially gears, MUST be made out of a single chunk of metal. It can clearly be seen that some part of the gears, are actually a welded portion and this is VERY DANGEROUS..!!
You don't need an engineering degree to understand that.
They’ll make you another one 👍
@@trainnerd4350 ... you may not be lucky enough to take another breath for that...
14:30 take a look at how bent the shaft is!
This will cause the gear tooths to be not perfectly involute. This will cause significant friction and wear when the gear is used.
These people really have no clue and are a bunch of amateurs!
And they make the teeth softer with a blow toarch. They either want them to go bad within a mounth or they don't know what they're doing. It seems like it's built in a way to wear out as fast as possible to sell more in the future. And making it look like they're heat treated. It's either malicious or they saw how a real gear looks like and just try to make theirs look the same with no regard to why they look that way (heat treatment to harden the steel)
No Accuracy in this work, & very short life of this gear wheel,
Сделал вид что закалил…
BUNNY
Location plz
ok
👍
Pleases checked machine arbor run out
13:22 lets us not use any coolant!
What a bunch of amateurs!
Great skill but safety too poor
p00
This doesent look right. The grinding of the tool is not any iso mesurments.
Ondan 121bin tane alirim 000101000001000000000000
We india have sophisticated facories
Do population control and have better govt
Then u too will be better
It's not in US, it's in India. They aren't experts, they're noobs, those sprockets are trash and this video is a joke...
At least there working in a trade and not sitting on there asses waiting for a hand out.
its *Pakistan
in india, we have gear hobbing machines and CNC.
(for smaller size we use hobber upto 1" above it VMC.)
if you want one, just ping me.
@@msengg5752 WFL MILL-TURN 60 may work also.
@@Clarity5970We never tired on tmc, our shop have doosan lynx 2100 TMC, we generally turn it on lathe and mount it on vmc... For as TMC are for high volume production. for 1-2 job they won't allow as.
Nicce
C* C* C * C C * C* * C* C* C* C* SLAVA UKRAİNE!
LET'S SUPPORT UKRAINE...
Niceee