Bore & Bush Bull Gear
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- Опубліковано 1 жов 2024
- This will be a 2 part video. This first video will show the boring and machining a new bushing for a bull gear. We'll set up the gear in the Monarch lathe to bore the ID true, then machine a new bronze bushing with internal grease grooves, then press it into the gear.
Second video will show machining the new shaft that this gear rides on.
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man that thing needed a garden hose or pressure washer first, I'd have been embarrassed sending that to any metal/machine shop like that. 😒
Rookie mistake sending filthy parts to the machine shop. Most guys I know charge their hourly rate to clean up parts that need repaired/welded/machined.
I have never had someone bring me a clean part. Never.
From my experience I don't think it's a big deal to clean a part if they bring you a lot of business. Sometimes you go to look further down the road this may be a good chance to get more work.
@@amos4457 I never complain to the customer, but my hourly rate starts from the time I touch the part. So that includes my time spent at the parts washer.
@@grntitan1 I totally agree. I never complain to my customers but man does it ever piss me off when you know that they don't care in the least, if not for their own pride but for the shop they bring it to. I understand that not all places are capable of doing certain cleaning but this type of filth really isn't one of those cases. Don't get me wrong I'd still take the job with a smile on my face but behind that smile you bet I'm thinking ( you lazy duche bag couldn't even wipe a bit of lint off before they track it through my shop) lol. Not that my shop is cleaner than a garbage dump but hey!! it's my garbage dump and not theirs lol.
What should I do if my hourly rate is more than machinists one? Clean by myself, or pay to machinist?
Never send a Machinist a dirty part not worth paying Machinist hourly rate to clean a part
Most grunts won't be able to clean it to a machinists standard anyway.. but if Adam only has to degrease it at least that would be a pleasant courtesy.
They could have had a temp bring it out back and hit it with a pressure washer. Cheaper than Adam cleaning it for sure.
I might tick some people off but damn it folks clean your parts that you bring to guys like Adam to be repaired. They don't need to contend with your dirt before they can start the repair process. Yes I know it takes time, but would you rather pay machine shop rates or an employee that you are probably paying half as much or less to do the job!
I guess this customer prefers to pay machine shop rates! Bring it to my shop. We'll clean stuff all day if you want!
Thanks for the video Adam. I have owned a 12X36 inch lathe for 40 odd years and while I have knocked out many jobs for the farm in that time I never really knew how to use it properly. Thanks to you, Keith Rucker and Keith Fenner I have learnt so much. It has been like going to trade school for this 76 year old. I now know a lot more than I did 10 years ago, but I still have a long way to go. Many thanks to you and your colleagues for all the tuition. It has been a very interesting journey. Kindest regards from Australia to you all.
Same sort of thing except for a young guy. I fixed things and made pieces with a lathe for farm type stuff since I was a little kid, Adam and Keith Fenner taught me all the knowledge which I could immediately put to use since I already was familiar with the machines. Now I am doing much fancier and better repairs and have machines of my own!
That somebody is sending the gear in this dirty condition is imho outrageous. It is like sending your underpants to a Tailor with streak marks!
🤣
I hope the owners of that gear feel suitably embarrassed at sending it out for repair in that filthy condition.
I hope Adam charged them shop rates to clean it so he could work on it.
Adam, you've turned your lathe into a shaper!
Dont you love it when a repair you performed years ago come back to see you? Its been out there doing its job for decades and has finally worn our. Your repair was good. It lets me know I did a good job.
Don't send dirty parts to the machine shop
Thought not 1 single customer that ever walked into my shop with a "hey man".
Any shop
For real. How inconsiderate.
@@nicholasmcconnell7853 I said the same thing. I can’t ever recall a clean part needing repair coming into my shop. Most the time it’s a greasy mess.
The guy could've cleaned the part before bringing it to you. I'd charge him extra for cleaning
I love seeing things like a large powerful lathe being used as a hand-powered shaper. That's real machining and a real education!
I screwed up the dis-assembly of a spring-loaded retraction mechanism on a sun awning and the runaway rotation stripped the teeth off of the pawl bevel gear. I mounted the gear in the chuck of my recently purchased vintage Craftsman 101/Atlas 618, turned the threading tool 90 degrees, set the compound and re-cut all of the teeth with many passes. The gods of Machinery’s Handbook smiled on me, and the 60-tooth count on the gear exactly matched the number of index holes on the main shaft gear aiding in the process..
The cost of the lathe plus shipping was less that the price of a new awning. The first of many repairs around the house that would not have been possible without the lathe.
I would be ashamed to take a filthy part like that to be worked on anywhere
My opinion should of been cleaned before it was sent to be repaired!
THATS A RUSH JOB FOR YOU
Nice to see they wiped it down before they dropped it off
Great video, Theres something about machining brass or bronze that so satisfying.
Charge double-time for the cleaning.
Your Dad and grandpa would be so proud of you!
A pressure washer would have been the fastest and easiest way to clean that gear. Having a cheap electric pressure washer around to do jobs like that is well worth it, you can get a decent one for under $100.
There are a lot of customers who don't realize that most machine shops have to order material for every job. Waiting on material is a major component in the total time it takes to finish the repair.
In some places there are regulations that prevent machine shops from washing stuff like that gear outdoors.
My shop rate is $150/hr, but I charge $300/hr to clean before measuring that BS when you bring it in dirty. FYI ;-))
Sell all your machining equipment and just buy a pressure washer and you'll double your income and have nothing to complain about except all the trips to the bank to deposit all your profits.
Sweet!! Bring it on!
@@edwardkawecki8101 .....Nice!
I too had a One Stop Shop. Before I opened up my shop, I was a welder, a machinist and a machine shop repairman. I never refused a job. I had 1 rule.
Clean your parts before you bring them to me.
Would have been prudent and appropriate if buddy Joe had cleaned that gear previous to dropping it off.
I would charge double my rate for the cleaning, at an hour minimum, mate or not.
If it's the laundry owned by a guy called Gustavo Fring, definitely don't bring a camera
Keep up the good work and videos Adam. =) God Bless.
I'm surprised they did not clean it before dropping it off.
Adam and joe have a great unofficial partnership, I fully belive between the two of them that could fix anything that comes into their shops. Keep up that relationship!
This video took me back about sixty-five years ago, when I was an apprentice.
Great video, instructive, informative, first-class machining techniques.
My, how the time has flown by!
Nice of the customer's maintenence staff to leave the cleaning to you.
Extra hour for cleaning the junk lol
Wondering if you should make sure the outside diameter of the teeth are true with the bore. I’m sure you check it all. I’ve seen this go bad when the teeth aren’t true to the teeth of the gear it mates with. Makes a racket. 🙂
Only if you can still trust that diameter, since that diameter is not as important as the actual tooth profile pattern.
Think I'm 1st here ! Love am Abom video before I go to sleep, loving the new shop mate, keep up the good work 👏
you sure are :P
Well this video is from a while back and is in his "old" shop. I hope that doesn't bother your "sleepytime!!" After he recovers from the nasal surgery, we will all be ready for "new shop stuff"!
To give a dirty piece like that to a shop is irreverent!
Seems reasonable however, the worse condition they come in the higher the finished price seems fair.
When is the Acme screw getting redone? Im curious to see what you ended up finding with the crazy chatter
Its almost pornographic that you can easily buy the stock exactly how you need it where you are. Beautiful to see companies like that still exist! In Germany the common length for bar stock is 3m or 6m if you dont want to pay a huge premium, that sucks.
Are you sure? It might be true for steel and aluminium, but bronze usually gets cut up I think, since it's also a lot more valuable.
@@CatNolara Jep. Bronze and brass also normally 3m from our suppliers. Its hugely expensive yes and also a lot more uncommon.
@@Narwaro ....Ouch!!
@@paulcopeland9035 Indeed. Very hard to start out. We often joke when we order from a new supplier that they ask us for our railway siding 🤣
@@Narwaro Hmm. I know nothing of your supply situation or why it is so, but it has to be very limiting. It would seem some wise business person would be able to create a supply business on a smaller scale. Why is this not a thing? From what you say there certainly is a need! This looks to be a profitable idea. Are there government regs or something I am missing? Nice talking to you sir.
Adam, I learned more in this video than in the last 10. Thank you.
Always wondered how to cut the horizonal grooves on a lathe.
I study mechanical engineering and your content is almost therapeutic to me
Speaking from experience, it’s hell to be fussy
Yeah. It's a hairy spot to be in, that's for sure!!
thats a dirty gear, is it normal for people to bring in crap so encrusted with gunk or are you just lucky
unfort that is a pretty usual sight
@@Wolfy_80 used to the military, we had to clean everything and would be embarrassed to turn in something like that even now that I retired
@@Viper1392000 couldnt agree more, but more often then youd like, when you get parts loking like this our worse and have to start by cleaning them, and usuly thats the expensive part ;)
@@Wolfy_80 lol well if they are paying for the cleaning you might as well get it spotless
Jeebus people! Clean you **** before you take it to the shop for repair! Show some courtesy.... besides, it's cheaper to pay your lowest wage earner than to have the skilled operator like Adam to clean it.
Another interesting video Adam! Thank you.
Indeed. I'd be embarrassed to drop something off in that state.
Can you really completely trust the previous machined surfaces to be in line with the sprockets? I thought you should at check how the sprockets line up with the center hole in some way, in case you can improve the centricity.
I know we have seen it before, but watching you handle a four jaw is like listening to a virtuoso play Mozart. I can see it again and again and never tire of it.
its interesting how those brass...or is it bronze....chips spray off the tool bit. And that line up step is a Great idea. I can think of 2 times that would have been handy on pulleys i had to work with. SWEET
Bronze. Probably phosphorus bronze at that (since it's a bushing). But yes, copper, bronze and brass chips break easy, and they all machine very nicely with a sharp tool.
I would be ashamed to ship a part that filthy to a repair shop, so that they have to clean it up before starting to do the repair work !!
One would think that if they truly meant "rushjob ", they'd clean all that crap off of it before turning it over.
That brass cuts like butter in your hands Adam. Quick question: What do you do with all your brass chips from these bushings? Do you save them and sell them to be recycled? I’m sure you don’t just throw them away seeing how expensive brass stock can be. I know it’s recycled, I’m just wondering what your process is. Thanks in advance Adam.
My 1st thought, that gear was from a Manure Spreader HAHAHAHAAHAHAH ...
Thanks Adam..
Mike M.
Adam, thanks for being realistic about these ops.
Thanks for the video. always amazes me how customers bring such dirty stuff in for repair. imagine if it was returned the same way!
You are spoiling us with all the videos. Thoroughly enjoying all the variety.
Be interested to see someone cutting a spiral grease groove. Cant find anything on you tube.
What would be the benefit of a spiral cut groove over what he did? I don’t see any.
@@st3althyone The spiral grooves encourage the lubricant to move through the bearing surface. More useful in a non pressurised oil bearing probably.
Slow turning speed and a high feed is used for spiral cut.
Used in king pin bushings and bucket pin bushings on machinery.
It encourages better luv distribution.
I seem to recall Curtis from cutting edge engineering cutting one, but I think he just used a die grinder
get a gun scope so it can follow the tool inside the bore.
It is always nice to see some tools with famous german brands in your videos. In this case it is the GEDORE brand hammer. Gedore is short for "Gebrüder Dowidat Remscheid" (which means "Dowidat Brothers, city of Remscheid). This company is famous for their high quality machinist tools - wrenches, hammers etc. Greetings from Europe :)
I have some Gedore flare nut wrenches too for working on cars. They were expensive! but totally worth it
I have some very finely made Dowidat snap ring pliers also some Belzer. They are a pleasure to work with.
I was looking at some the other day and found the finish to be abysmal
I capture all bronze and brass chips for later melting. I currently have ten pounds that needs to be processed
Clean up is the worst part good job thanks for sharing
Hitachi/John Deere steps the end of their hard steel and bronze bearings like you did there. Its way better than a chamfer IMHO especially when using portable pulling cylinders out in the field. Gets everything started straighter and helps prevent galling due the the bearing not centering correctly. (most of the time!)
Hey Adam, I just finished watching all of your past videos. Thanks for all the great content, I have learned so much from you. It would be good to see the install of the DROs on the Victor and the Monarch, they probably would be of more use on the machine then just hanging around the shop, but I know how it is, I am just getting to projects I have been putting for years, thanks again.
Hey Abom, question, why when you chucked the cog is it preferable to hold it buy the inside center rather than pressing outward on the "inside" diameter of the outer ring? Thanks.
U actually make me forget how bad I hated being a machinist lol. You have a gift and make it look easy. I'm glad I have the ability and even more glad I dont have to do use it much any more. Love the vids!
Awesome work, I’ve been really looking forward to this video. Definitely learned a lot of tricks that I will be trying out myself. Thank you.
Great video , Always something new i learn . Helps me out when i get some of the little jobs i do . Thank You !!
That was a neat trick for making the oil grooves!
Enjoyed this, thanks Adam it's nice to see you doing jobs like this.
@21:37, I think the way you are doing it is just fine, DROs are nice but old school is cool too.
I really like how bronze and brass machines. Too bad they're "limited use" materials :P
I'm wondering how much did the ID of the bushing decreased after being pressed into the gear.
In my experience it's negligible. When done right.
They sent you that thing looking like that? I' d be mortified.
Tienes un taller muy bien organizado y además muchas herramientas admiro muchos sus trabajos 👍 saludos desde Colombia
thats the way i did the grease grooves for the sheaves on my Insley front shovel. i learned a lot about machining when i was rebuilding the boom on it
Never imagined using a lathe turned off as a human-powered "shaper" - how cool!
Please keep videos like these coming. They (and not the gearhead/product placement/unboxing content) are what attracted me to your channel.
Just watched this video, and I can totally relate to a one stop shop. I am 70 years old, got a wed/fab/machine shop in the country. Seems like people from all surrounding counties come here to get things repaired. They have learned to call, bring it, leave it, till I call. Most of them have learned, that if it is fixable, I will and they leave me alone to do that. Really like watching your videos. Im from Mt. Sterling Ky. Had welding company, Dale Welding Works LLC, until I lost my son 4 years ago, sold my trucks and stay in the shop now. If I was closer to Florida, I would visit. You and I could have long conversations.
I could watch you indicate all day long, great post!
Batting 1000 on the captions today, Adam. ([0:13] "Description", [3:44] "Name/Description")
I never thought of using a lathe in that way. Nice job Adam!
You probably saved time using the lathe, but the shaper was laughing at you cutting those longitudinal grease grooves. 😂
Tool bits are the way to go with bronze and brass I was building an item today out of brass and it easy fairly easy material to work with !
Nice trick with the step to align with bore!
I think I was a crow in my prior life, I love the shiny bobbles when the machining is done. That bronze is really something to see all spiffed up.
Me too. Brass, bronze, I like the chips as they come off with some nice light shining on it -- sparkly!
I have been doing lots of parts washing lately parts seem to show up dirtier and dirtier.
Don't they ever clean their machinery at that place? apart from anything else, lint, probably covered in oil , would be a fire hazard.
Question -- Why did you indicate on the egg shaped bore hat you're trying to correct? Wouldn't it be better to indicate on the gear teeth so the diameters end up concentric?
Proper bit of machine shop work there Adam, thanks very much
Wow they didn't even clean it off before sending it out to get fixed. I would charge them for cleaning it.
appreciate an explanation of why he uses a particular tool
You machinist or definitely cut from a different cloth! Nice work!!! Really enjoyed your video.
vintage abom quality engineering- really good viewing thanks Adam
Tell that linen co to clean their crap before bringing it.
Yeah I hope they got charged extra to clean that disgusting gear.
They are in the cleaning business!
"Tell that linen co" ......to bring any "crap" they want to my shop. My pressure washer runs superbly on machine shop billable hours!!
When I worked with gears, I was taught to never trust the bore to indicate but rather indicated the teeth with a pin that makes contact close to the diameteral pitch and indicate that in. Maybe I was doing it wrong. Love the videos and new shop progress!!!
That's pretty interesting, I could see how that could be an issue, maybe it's only an issue with cheaper made gears, it sure looked like it was running true, maybe if it had looked off he would have indicated it a different way.
I've wondered at times if a spiral grease groove would be an improvement in lube dispersion , Machining efficiency and operational service life of the bushing itself ? Hmmm ? Congratulations on that beautiful new shop Sir ! Been too long since I have visited Your channel . Bonjour de Louisiane !
Your centering of the bore was by the bore, but would there not be a possibility of the bore being off centre from the circular path of the teeth?
Interesting question, I'd like to know as well!
Usually the *pitch circle* of the gear is specified to be some tolerance relative to the axis of the bore. That gear is pretty worn from the looks of it. Adam used the least worn (relative to the axis) part of the gear as the reference feature. Short of making a whole new gear he did the best anyone could really do with what he has.
In practice one would check a *newly made* gear by mounting it on a test mandrel and then "gaging over pins" to check for runout of the pitch circle relative to the bore. On an old worn gear like that the original pitch circle is likely no longer round nor the same diameter as when new. To try and center it to whatever and wherever it is now would be an exercise in futility. I agree it would be interesting to see how worn it is but that is not what the customer asked him to do.
@@utidjian thanks. I wasn't sure. Only way I was thinking was a few measurements from tooth face to inside face of the bore.
Nice, Adam. Knowing how much you love your shapers, I was absolutely sure that I was about to see you use one on that piece of bronze - which I have never seen done before on an inside diameter like that.
Actually I never even knew a shaper existed until watching you a couple years ago.
Thanks for expanding my own accumulation of knowledge … again.
this is the kind of real world repair i like to see. we do similar stuff in our maintenance shop.
3:48 That was as satisfying as watching the guys clean off the barnacles off of sea turtles.
29:54 Lathe as shaper.
Who manufactures the inner bore attachment for your dial inductor? Love the videos, thanks for sharing…
Starrett model 670A or 670B.
Thank you so much!
Hi Abom79, you show us how to make the bushing oil grooves but you don't mention how the oil\grease gets into the bushing; do you drill a hole later or do the grooves extend past the edge of the bushing that we don't see?
Needed this exact thing done on a large drive wheel for a portable mill. NONE of my local shops were willing to do it. Spent over 600.00$ on a new drive wheel.
LOL... at 3:40...
Name
Description
This just in!!! Adam is a human. 😺 It's definitely no secret that he makes oopsies every now and then. 🤷🏻♂️ He even includes them in the videos. I don't trust people who try to pretend like they never screw up.
Always a pleasure watching your skilled, dedicated and thorough work, thanks for sharing!
Greetings from Norway.
I would love it if the high pitch frequencies were cut out or turned down in your videos, i have to mute it sometimes when youre cutting. kills my ears, but i have to watch cause i love machining... lol
I watched this repair series out of order, so I got to see the issues Adam had with fitting the repaired bull gear to the new shaft before I watched this video. I enjoyed participating in the "better methods" discussion after the final video. All of this is very interesting to me Adam had challenges and methods to address them from the beginning of the repair. Adam may have been more successful employing different methods, but he knows his shop limitations and assets well. He has done similar successful approaches and that likely affected his approach on this repair. I spent a career doing repair work. I didn't have a UA-cam community to critique my approach. I enjoy the UA-cam community when we add helpful and constructive comments. I am here to learn and Adam is likely learning too.
This series is the content that brought me to the channel. I need Adam's machining skills and he remains the best instructor that I have found for this content. I never intend to grow my machining skills beyond repair work. I worked maintenance in a high production shop for my career. I have had my fill of the high production environment. My hobby life is having the capacity to make and do what I need and want and to learn and refine skills that I lack. I learned a lot of skill practices and approach from this repair job. I will employ them when need arises.
I especially liked Adam's approach to the grease groove issue. I think of this as single point broaching or planing on the lathe. I employed a similar technique on the Bridgeport when I needed a square through hole on part that I was fabricating. I had no broaching capacity. I made a crude single point tool from a broken carbide end mill. I used the quill stroke to open the round starter drilled hole and to square the corners. Adam's skill and methods refinement outclassed my crude setup, but my method met my requirements. I like Adam's detailed explanation that matches well with his video skill. I think that I would have pressed the bushing into the trued gear bore and finished the bore to size on the Monarch, and then completed the grease grooves in that Monarch setup. I don't yet have the luxury of multiple capable lathes and I don't have a set of expanding mandrels. My methods reflect my shop limitations and my experience. Kudos to Adam and to any of us in the community who can expand my learning and skill.