BIGGEST BRONZE BUSHING In My Machining Career. Największa brązowa tuleja w mojej karierze.

[@jaredjohnson3043]

That bushing is insane! I couldn't imagine the mess that bronze made all over the lathe, one of the worst materials to clean up after in my opinion. It's sad to hear people putting down your machining. Everyone's an "expert" when they're on the internet. Your machining is always impeccable! Thanks for putting up another great video.

[@ChrisMaj]

And that's where the enclosed machine shines.

[@jaredjohnson3043]

@@ChrisMaj Very true!

[@lwilton]

I think that the less chance someone on the internet has actually done any machining, the more of an expert they are. That seems to hold true for almost all disciplines.

[@Paul_Kair]

for me cast iron is worst material...

[@ChrisMaj]

@@Paul_Kair O yeah definitely and that smell.

[@robertoswalt319]

I started thinking about the things that went into that piece. The casting process, the metallurgy to get the alloy correct.... Then to see that there was only that small void visible when you finished. And you sir, you are a true craftsman in what you do. Not only are your machining skills top notch, your video production skills are great as well.

[@ChrisMaj]

Haha thanks. I'll take that machining skills, but the video production, I don't know about that. 🤣

[@angeloangelucci717]

Awesome as usual. I wouldn't even bother addressing the tool bags that criticize your machining. When one of them actually posts a video that shows them doing what you do then we can consider them more than just a popcorn fart....

[@bones357]

🍿💨...😆😂🤣

[@ChrisMaj]

It's all good 👍

[@mrsock3380]

I used to turn a lot of bronze for face shovels and draglines, the KZbin experts would have a fit if they saw how we did it (2 set ups, release tension after roughing to finish). I've seen enough of your vids to know you take pride in your work so no complaints from me, thanks for sharing.

[@ChrisMaj]

I hear you. Being a repair shop we've pulled some crazy shit to get the job done, but that's definitely not KZbin material. 😉

[@jefflund763]

nothing wrong with stress relieving parts either, it almost guarantees part wont move much in later operations.

[@hersheydunn5990]

Loved the video as well as your others I'm retired and after watching your videos It really makes me miss machining I never questioned tolerances changing after un chucking or runout Badass job my man

[@bigbob1699]

Always knew you were a watchmaker at heart.

[@ChrisMaj]

By the size of this piece, more like big ass clock. I could not be a watchmaker, I don't have the patience for small parts.

[@bigbob1699]

@@ChrisMaj We took a survey , and found out we have faith in you and your skills . Stay well .

[@SapperMike12]

And as always beautiful workmanship

[@williamwright6978]

Great work as always! A point to ponder, if I may: As an automotive technician I learned a long time ago that there's usually more than one way to get something done. Just because it works for me doesn't mean it'll work for you. I also learned that machining is the same way. As long as the part meets specifications and the customer's expectations it's all good!

[@ChrisMaj]

Well said!

[@rcaddictedsenior1000]

Very nice work. I don't pay any attention to negative comments. Your set ups are perfect obviously! I've been a machinist for over 40 years and cut a lot of bronze. Also liked seeing the pi tape used. Used those many times as well.

[@Horus9339]

I love bronze, but the mess is something else. I bet you were still finding chips in the neighbours parking lot six months later. Great job.

[@robertoosvaldonunezvelasqu4317]

I'm in love with the pieces he makes. I always watch his videos and I love them

[@johnlawler1626]

Your set up was spot on mate, so I'd bet you weren't worried about run out or ovality, experience counts, let them say what they like, I don't know why people leave negative comments they're only jealous mate, lovely piece of turning and well filmed mate thanks for sharing 👍

[@mehmettemel8725]

That is one hell of a big bushing I haven't made one that big yet probably never will.As a machinist we all know how you go about machining,premachining roughing ,stress relieving and final machining and all the care you take always catches my eye since I'm a bit of a fussy machinist myself.I haven't come across any of your videos to criticise,if others do then they know SFA.👍

[@ChrisMaj]

I'm trying not to post all the fuckups 😉 Thanks for taking the time to watch my videos 👍

[@familydahl4103]

Hey man, don't listen to the negative comments. You do amazing work. Watching your videos makes me miss the machine shop. I did similar work locally but the castings we got were never in as good a shape. As always great work.

[@ChrisMaj]

It used to bother me a little, but now I don't really care. Thanks for taking the time to watch my videos.

[@mauricelevy9027]

That must have been a most satisfying job to have finished .Thanks for the video.

[@ChrisMaj]

Bronze is always fun to work with. Thanks for watching.

[@tomtd]

As a young design engineer I worked for a U.K. company in rubber and plastics, Francis Shaw , my division made rubber mills and calendars, each machine used four or eight such huge bushings, one guy did nothing but turn them on his vertical lathe, no CNC in those days. Each and every one a masterpiece in casting and machining. They had cast iron rolls of about 10 tons running in them and thrip between the rolls that masticated the rubber used around 600 HP at say 20 RPM. Humengous loads,and these machine ran for decades. This looks awfully like a replacement bush for a rubber mill, a big rubber mill.

[@ДмитрийДнепр-ж4и]

Добрая робота! Удобный циркометр для замера длины окружности. Респект !

[@grumpyg9350]

I grew up with the family that invented the Pi tape, before Lufkin. Great video.👍👍👏🏻👏🏻

[@ChrisMaj]

Great tool once you get the hang of it.

[@Tocqueville2023]

That dial indicator tells the story! super fine!

[@espenforfen1334]

That's really cool!!!!!!! Thanks for sharing this all the way around the world!!

[@mr.september2879]

I started job in a new shop 6mths ago, First job they had me do was a 30in diameter, 30in length, 16in bore brass nut. Had an internal buttress thread with a 1.5" pitch. Grooves went from 16" to 18" in diameter. Needless to say it took 3 weeks and many chewed fingernails.

[@ChrisMaj]

If you're still there, it means you did good. 😆👍

[@mr.september2879]

@@ChrisMaj Thanks. They were definitely happy.

[@alexanderhowa9707]

What a unique part. Chris I was wondering if you had heard from David Wilks. I really hope he is still around

[@markneedham8726]

Yes, have been worried about David.

[@shaneward6689]

i did some tracking and found someone on Facebook who is supposed to be his son so ive sent them a message asking if he is alright

[@ChrisMaj]

No, I haven't heard anything about him since last youtube post.

[@markneedham8726]

@@shaneward6689 Well done. I won't play on facebook and am thinking of dumping utube. Too PC for my liking.

[@shaneward6689]

@@markneedham8726 so far no luck though

[@GpunktHartman]

Well done, Simon!

[@ChrisMaj]

Haha, I don't see it.

[@GpunktHartman]

@@ChrisMaj ... a big golden Buzzer

[@ypaulbrown]

wow, this a fantastic video...thanks so much for sharing....Paul

[@Imba-gt7qi]

I made some 80mm outer diameter bushings with my small toolmaker lathe. I sweat water that i match the tolerance. Im not that experienced in bronce. You did an awesome Job!

[@tuckerhardin1116]

I enjoy these videos for not only the talent you have but also to see how you do your setups I'm new to running a 56in bullard keep up the good work

[@winchman7572]

Beautiful!! I'd sure like to see the machining of the grooves to distribute grease across the contact surface.

[@armandodiaz5342]

Westinghouse on Henry Ave. Sunnyvale ,CA. Now that was a shop that would dwarf a part like this. I'm impressed by the skill of the machinist on this part keep up the good work

[@yajtramer6913]

No smart azz comment from me. You are a professional. Awesome to see the true form of the object released. I love watching these vids. I always got the weirdest jobs in the shop. From sump Sucking to setup for long production runs to covering for guys being sick in other shops.

[@luderickwong]

put a KZbin video while you work on some expensive no margin of error job becomes a standard practice among machinist worldwide. it is a good proof for the picky customers to see how the job was done. no flip flop, no cut corners, no flow play, no it was broken in the workshop kind of mumble jumble. it is a kind of good advertisement for the goodwill of your company too.

[@Sibbe2560]

These kind of jobs can only be done by really skilled people. You must be one of them…👏👏👏

[@ChrisMaj]

Haha thanks, I like to think so 👍

[@metalsak1973]

Hello from Greece. Really cool bushing size for sure. I work with castings and they do a really good work,and this bubble you show is in non working side!! After the hard cuts,you may test some aluminium inserts on bronze...i find them to work perfect in bronze, even in hard ones. Very nice work as always!!!

[@ChrisMaj]

Thanks for the tips!

[@No_Way_NO_WAY]

Finally i saw the making off of one of the 4 bushings for my model truck. its in a 20:1 scale.

[@ChrisMaj]

Is a big ass truck.

[@PhilG999]

I really enjoyed machine shop when I was studying for my ASMET! Crusty old retired Navy machinist taught us. First thing he said to us was: "You'll get an A+ if you can do it better then *I* can. If you break a tool, you fail the course on the spot". I got an "A" on every project! I also broke a 1/8" drill bit. Took it to him and showed it to him: He said: "Get TF back to work"! Guy watched me (caught him out of the corner of my eye). One day he asked me: "Why did you pick this old LeBlond down at the end of the row instead of the newer machines up front"? I said: "The Squirells fight over the new ones and never use the same machine two days in a row. I figure this old girl gets left alone (and it did because every day I got to it it was just the way I had left it the day before). Also, the scrap barrel is two steps away, and the tool room is about 10' away. Those guys walk back and forth more than I do, and I get done cleaning up and turning tools in and am gone before they even start"! Went on to my BSMET and had a good career as an Engineer before I retired. These days I wonder if I might have been better off being a Machinist although I *did* spend a lot of time in the machine shop! ;)

[@maxnex7676]

I want to make a smart comment 09:08 ..... what a great job, that is one heck of a bushing and a thumbs up from me.

[@ChrisMaj]

Well thanks man.

[@marcindohc20]

Świetna robota. Pozdrawiam z Polski.

[@ChrisMaj]

Dzięki, staram się 👍

[@Jameson4327]

Well done!

[@jolujo5842]

I'm guessing that's a propeller shaft bushing for an oil tanker or massive container vessel. Beautiful work 👍👍😎👍👍

[@ChrisMaj]

Steel mill industry

[@captcarlos]

Good job there, that's some shaft diameter! Back when, they wanted the bronze swarf back. PITA to clean the machine that well prior to machining the bronze!

[@peep39]

Neat how brass turning makes the same sound even on tiny parts as this gigantic one

[@kisspeteristvan]

Nice and clean part . But that 0.001" tolerance on something that big is something else.......

[@matter9]

Yeah, I was really surprised when I saw that. I don’t do work that big but a total .005 on ID seems rather tight as well. Very small margins for error. 👍

[@kisspeteristvan]

@@matter9 yes class 4. tolerance of sorts.... , tipically i see 6-7-8-9 class tolerances , the rest is open or specific . the 6. Class is tight enough . I really can't imagine they need that precision (&i could be wrong)

[@maxk4324]

@@kisspeteristvan I've only seen this kind of tolerancing on high RPM stuff like in engines. In car engines it can be on the order of tenths rather than thou, but this is more than ten times larger than car engine bearings so the tolerance scale is comparable. Not sure what needs to spin that fast which is that flipping huge though.

[@Lokimyrottie]

Lovely video Chris, could you make a separate video of how you set up the part and fine-tune it while indicating it on the CNC machine

[@jackychan6190]

Wow, great and precision machine job, very appreciated your professionalism💯💯💯👏👏👏

[@swanvalleymachineshop]

Awesome job . Cheers .

[@Викторкурлов-ш3м]

Добрый день коллега я отработал токарем-карусельщиком много лет с 1967 года а вот мерительный инструмент такой вижу впервые отличная рулетка если её можно так назвать и в каком городе снимался этот ролик я из города Хабаровска большой привет

[@ChrisMaj]

Я родился и вырос в Польше, но сейчас работаю в пригороде Чикаго. То, что я использовал для измерения диаметра, называется Pi Tape.

[@sandsprecision3090]

About machining, I don't see any technical difficulty, rather it is a straight easy part to machine. But quality of casting is just superb. But for that small defect, casting is really good. I appreciate the foundry. Thanks for the video

[@ChrisMaj]

You right, there isn't anything too complicated other than the one tolerance and the size of it. Thanks for taking the time to watch my video.

[@michaelalderman3139]

Very nice work

[@onepairofhands]

very impresive work sir

[@jefflund763]

most people dont realize it doesnt take much jaw chucking pressure to machine parts of this size in a vertical orientation. gravity and the weight of the part help keep it on the pins. just an opinion from a 35 year part spinner! peace very nice work by the way!

[@zekirshare]

Awesome work

[@jonwatkins254]

A beautiful Job!

[@ChrisMaj]

Beautiful is what I do 😉

[@emrfixit]

Wow, awesome video, thanks for sharing!

[@suryaselvam9082]

Good work buddy!!

[@ChrisMaj]

Thank you! Cheers!

[@Chris-kk8xg]

nice piece sir.

[@martinkscott]

Brilliant piece of machining sir,I machine brass every day,gunmetal mostly,lg2 and lg4

[@adam-1112]

Chris, mam wrażenie że za bardzo się przejmujesz jakimiś durnymi komentarzami od osób co chyba nawet klucza w ręku nie trzymały. Skoro wrzucasz od kilku lat filmiki z obróbki, to znaczy, że wykonujesz swoja pracę perfekcyjnie. Wiadomo, że gdybyś produkował dużo bubli, to na pewno byś długo nie popracował w zawodzie i nie wrzucałbyś nic na YT. Pozdrawiam i czekam na kolejne video. ☺😎

[@ChrisMaj]

Przyzwyczaiłem się już do tych klawiszowych ekspertów.

[@brucelott3583]

When you're good, you're good. How much weight did it lose? I'd bet it was enough to make a boat prop.

[@ChrisMaj]

Around 350 lbs

[@maxk4324]

@@ChrisMaj that would have to be one big ass boat

[@chiraz111]

amazing work! good choice of music too. 5 stars!

[@ChrisMaj]

Glad you liked it!

[@nebojsailic99]

Amazing Chris👌👌👌👍

[@ChrisMaj]

Glad you enjoyed it

[@ShainAndrews]

Looks like they did pretty good on the casting.

[@ChrisMaj]

They sure did.

[@gerbil7771]

That’s cool. Nice work.

[@ChrisMaj]

Thanks!

[@szuler666]

Fajna robota bo tuleja dość gruba ,mi na konwencjonalnych karuzelach często zdarzało robić wieksze ale ciekoscienne tuleje na wały okrętowe upierdliwa robota , he he i ta taśma do pomiaru raz miałem możliwość pomiaru i dałem sobie spokój .

[@ChrisMaj]

Nie chcą kupić większych mikrometrów, to się bawię taśmą.

[@szuler666]

@@ChrisMaj He he brak pomiarówki czyli ten problem jest wszedziej.

[@jsimm4587]

Good job I’ve machined some big pieces and things like this too . I had grease groves on the inside it wanted to sing cutting them ! I started machining graphite talk about to tight to loose to chuck on ! I always had out of shape parts to repair another hard part is indicating something bent ! I also machined on a old Bullard touret lathe 30” crucibles for vertical casting brass

[@seannash4695]

Beautiful work. 😊 Nevermind the "barking" noises from under the bushes. People like to gripe from anonymity.

[@nilsdietrich5563]

Nice job.

[@bumblebeebob]

I presume this is a large casting? How much over sized do they cast it to allow for ample material to ensure there's enough to machine to final size? 10%? 25%? More? I'm sure a lot depends on the material too.

[@ChrisMaj]

The OD was around 1/2" (12 mm) and as little as 0.200" (5 mm) in some spots. The ID had more stock about 3/4" (19 mm)

[@bumblebeebob]

@@ChrisMaj Thank you!

[@iliandimitrov4857]

Good job

[@JD-hh9io]

Damn, that was cool as hell. I have done a lot of bronze castings. Nothing that big but still 12." OD. I do miss doing this stuff. And you didn't even squish it! Well done mate.

[@ChrisMaj]

Yeah, that was a first one for me too of that size. Turned out better than expected.

[@tonycampaign5337]

The haters can hate! Me: well done. Precision work at its finest.

[@nataliaelenasalinassaldana9741]

Muy buen trabajo !!!! yo trabajo en una fabrica donde se especializan en bronce y trabajo en un vertical you ji la fabrica se llama Sorena saludos desde Chile 🇨🇱

[@warrenjones744]

That is quite a casting. you could probably recast the chips into another fair size part!

[@ChrisMaj]

I wish I could keep the chips.

[@davidethridge6033]

Looks good 👍 and to the smart asses out there, a bronze bushing that size Ain't Gonna Move on ya...

[@zalman7208]

That is enormous, and I for one am very much impressed with the precision. Wonder what shaft this bushing had to fit, and why a bushing was chosen for this huge load.

[@danthoreson4062]

nice work

[@stevenhorne5089]

Awesome work. Anybody that doesn't think so, is just jealous.

[@ericshepherd4865]

Great job.. I enjoyed working on bushings like these.. ever worked on halved/ split bushings this size?

[@ChrisMaj]

Never, that might be little scatchy.

[@MK-yq3up]

Dobra robota!

[@ChrisMaj]

Dzięki 👍

[@arry4264]

we had issues with the bronze swarf getting into the head slides.

[@KTK4321]

This is amazing .... 1/1,000 tolerance on the OD. With this size of work piece, how critical is the temperature of the work piece at the time of measurement?

[@TheyForcedMyHandLE]

I was wondering the same thing. Just a couple degree difference (even shop temperature) would throw the tolerance out of whack.

[@fubartotale3389]

As a recently retired toolmaker who strived to make ever smaller more precise parts my whole career, and who ended up being a grinder hand making tiny, super precision laminate and connector mold inserts, it's a little intimidating watching over 1000 # of bronze spinning around. One slip and you either made a very expensive piece of scrap, or you became ground beef.

[@eumesmo0421]

Parabéns irmão, já trabalhei num vertical deste,mas usinava na maioria das vezes cobre eletrolítico

[@hinz1]

Made some wear strips from CDA954 Al-bronze for the box ways of my worn down milling machine once. Somewhat funny material, lots of work hardening and likes to move during machining, so the comment about tolerances all over the place is somewhat understandable..... ;-)

[@복을부르는남자]

언제봐도 역시 대단한기술이네요......

[@DanielPerez-bn9bi]

Question: Why did you have to flip it twice? Looks great!

[@phillipwebb9741]

Is that for a hydraulic application? I machine large bushings out of 660 cored bronze for hydraulic glands. Nothing quite that big lol. Nice work .

[@ChrisMaj]

Most of the work we do is for steel mill industry.

[@TrPrecisionMachining]

good job chris maj

[@rogerbanta6130]

I used to do these on an old Bullard vertical belt drive.

[@TommiHonkonen]

i seen those measuring tapes in a catalog but never in use

[@ChrisMaj]

These things are pretty accurate, but pain in the ass to use, especially on vtl.

[@TommiHonkonen]

@@ChrisMaj I can imagine they are difficult due to gravity on vtl 😅

[@AMJcookie2015]

Wow! That's uuuuugggggeeeee!

[@LadyDewBuild]

Prop shaft bushing? VERY NICE WORK sir!

[@ChrisMaj]

Thanks 👍

[@LadyDewBuild]

@@ChrisMaj I often wonder if your work for a ship building company, It may be since I am a boat person I see boat stuff even when it isn't but there sure seems a lot of boat stuff you work on.

[@ChrisMaj]

@@LadyDewBuild Almost all of it is for steel mill industry.

[@aohua5805]

为什么没有看到加工润滑油槽?没有润滑油槽这么大的接触面.润滑脂不够的话不会高温吗?

[@tommytalker3416]

Verry impressiv!

[@ianmarywilliams]

Excellent job! Those chips get everywhere though don't they lol

[@ChrisMaj]

Yeah, bronze chips are pain in the ass.

[@HP_rep_mek]

Thats a big beautiful bronze bushing👍 I’m making some 55x50x45 mm bronze bushings myself for an hydraulic vane pump and you could probably put 500 of those inside this😂

[@buyamerican3191]

What a beautiful piece of material! Can you share with us what it cost? nice work!

[@ChrisMaj]

Around $10,000 just for the casting

[@buyamerican3191]

@@ChrisMaj Thanks Chris, beautiful work

[@mayurkotwal2323]

Workshop tour please 😇😇

[@ChrisMaj]

You didn't watch all of my videos, did you. 😉 kzbin.info/www/bejne/iaicf3ejZsyfkLc

[@bsyishay]

What is it used for? The processing is amazing!

[@ChrisMaj]

Steel mill industry.

[@kwasg3]

Wow! Love your vids. Hobby machinist here so no expert on anything... lol.. Question: Your OD spec only had .001" tolerance?! and, what was that you measured with? Never seen that type tape before, does it have Vernier marks or something so you can be that kind of accurate with it?? Love to see vid on that tool even. Question 2: Do you have to worry more or less about thermal expansion affecting finished size on these huge items compared to "Normal" size machining operations? I could see it moving alot because there is so much mass, but also could see it being more stable because there's so much mass to be a "heat sink" for the machining operations. Thanks for great channel!

[@ChrisMaj]

It's called Pi Tape, you read it like vernier caliper.

[@localele1]

Nice job Chris. I have been meaning to ask you a question for a while about finishing inserts.What is it about the Triangle inserts that makes them your favourite for finishing?It seems to me that they are used a lot on finish cuts.

[@ChrisMaj]

Six usable corners. Company likes that the most.

[@localele1]

@@ChrisMaj Fair enough.

[@ljs66bug]

omg that tolerance wow