FULL Ebike Hub Repair Teardown And Rebuild! - Changing the axle on my Ebike hub motor
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- Опубліковано 28 вер 2024
- **DO NOT CONTACT AFFORDABLE EBIKES LOOKING FOR AN AXEL, THEY DO NOT SELL THEM**
The axle of my ebike hub motor stripped. In this video I go over how I did this Ebike Hub Motor Repair doing a full hub motor axle replacement with a new axle from the manufacturer. This process will be similar to what you'd expect from a Bafang Hub Motor, but this was done with Greenpedal Hub Motor.
In the typical TheHowToDad style; no specialized tools were used in the making of this video!
*** DO NOT CONTACT AFFORDABLE EBIKES ASKING FOR AN AXEL THEY DO NOT SUPPLY THEM***
Where I can get one ???
@@miqelito23 you basically can't...I had to beg the manufacturer to send me one, and it was ose to $100 by the time I got it 3 months later.
FROM ONE DAD TO ANOTHER THANK YOU! FOR HELPING ME REBUILD MY E BIKE.
I DO DELIVERY FOR DOORDASH DOWNTOWN DENVER. MY JOB AND BIKE MEAN A LOT TO ME SO I CAN PROVIDE FOR MY SON AND MYSELF. Your Amazing Talent Even Better Teacher I Enjoy This Free Online School I can Soon Maybe Fix My Fellow Denver Riders Bikes And Pedi Cabs we are always Learning Everyday. GodBless Buddy! Atleast we are not drunks or druggies our drug is knowledge and Money For A Smooth Ride.
I do the food delivery too. any tips for the most reliable equipment?
A little dielectric grease will help that wire assembly slide in easier if you put a light coat on the sheathing. Try to keep it away from the end though, it'll make it tough to grab the end when you're pulling with pliers.
Great video, and perfect for a person I know who's looking to do the same job. I've had hub motors apart dozens of times, but the axle and windings are about the only thing I haven't done yet. Most of my motors are Bafangs, and the magnet structure has slots that you can put the puller arms into. But I do it sideways in a bench mounted swivel vice so not to worry about the magnets dropping back into place. Thanks again for the video!
I have to say, I was pleased to see the Ontario license plate on your 'soon to be' camper! Always nice to so the talent on our side of the border!
Great video. I need to replace that same wire, and now I’m feeling rather confident that I can do it myself.
Thanks for showing the tear down and rebuild of the electric bike hub motor. Will help me when I have to do it for my face wise, as my hub motor doesn't spin when there's load on the bike, only when it's in the bike stand with the up motor.
sounds like your windings might have a short. if that's the case buy the same motor and replace the internals. it only takes 10 minutes to do that
Thank you this video come in handy replacing the cable and hall sensors in my motor 👍
chould weld thread section to build it up and mill back to specs then heat it till its glowimg red using an induction heater and oil quench it should be good after that
yup, sounds easy
Wow, amazing video!! This was a delight to watch!
Brushless motor…no commutator..a great project, hope I can service my motor as easily!
While u were at it u should have cleaned and lubed the bearings too… ty for the video, nice to see other ppl being handy and fixing their things too.
Incredible !!
Your yampa has a recall on the front fork. Contact the company. If it does fall under the recall they will send you a new one.
unfortunately this bike was stolen...
Great vid, excellent shots and explaingin all along. super helpful...suggestion: some silicone oil or synthetic grease applied to the cable and shaft before inserting it likely would have made the job a lot easier getting that wire in. using pliers like yoiu did could damage the wires and reduce the current carrying ability.
Add statorate magnetic coolant cools magnets get 10% more power etc $20 10ml tube
thanks ,that helped me fixing my bike
I recently shredded through my green wire on the motor , I think i will replace the small section but it has been giving me an error 24 code. it would be cool to replace the plastic gears with metal ones , i wonder what pros and cons that would have.
Great in terms of sustainability, but how long did it take in real time (also delivery time) and how much did the spare parts cost. It might be easier to order a 2nd wheel with motor right away.
a motor would have been easier and probably faster to order. just swapping the internals would have taken 15 mins and would have been much easier...lesson learned
Where’s the fun in that 😅.
Where did you buy the wire
I contacted the manufacturer directly. It was not easy to convince them to sell me the parts, and the parts were not that much cheaper than just buying a whole new motor. I'd suggest buying a new motor and just swapping the internals. it is MUCH easier, and doesn't cost that much more.
How long is that axle shaft? It looks just like the one on my Ancheer. I need to do the same repair but can't find an axle and Ancheer isn't responding. Thanks. great video.
How to tell someone’s from Canada..axles been stripped OAT…(out😅) great video man
Is there a way to take off the planetary gears off without a gear puller thank u
you should be able to do it, but you will need a pair of circlip pliers
OMG what a work, I ask my wife to fix it.😊😊😊
Where can i find a axle for hub motor? I can't find, you got a link?
basically you can't...I had to direct to the manufacturer, and even then it was expensive and difficult to get
What to write in the web site search option to get that same axle please reply
you need to contact the manufacturer.
sick vid man. literally on the edge about taking my hub apart to service it but i think i can do it after watching this! youre such a positive guy lol thanks for sharing
Awesome! glad you find it helpful. It can be scary when you look at a project as a whole, but most projects are less daunting when you break them into parts. Hope your service goes well
Any link for the axle of ET cycle f1000?
sorry...axels are not easy to come by. I had to go directly to the manufacturer, and it was expensive and a bit of a waste of time. I'd sugges buying a new motor and swapping the internals.
Awesome video Lost the key that connects axel to gear (2:23 on your video). Any idea where to find a replacement?
this is a pretty typical item. best place to start looking is a small engine repair shop. tell them you lost your axle key, and measure the cavity where the axle key fits into to get the correct size
How did you get the new axle I need one and cant find it anywhere
I need to replace my hall sensors which are marked 502F 83989. I cannot find these anywhere, does anyone know a substitute l can use. The width measurement is about 4mm approx)
contact the manufacturer directly. also, try searching Alibaba. all of these motors are manufactured in China, mostly in the same factory. this might sound nuts, but it is probably easier just to buy a new motor and just swap out the internals.
@@TheHowtoDad Thanks for the info.
I have a question for you buddy, where did you order your new axel replacement from and where is the serial number or order number on the axel ? My axel looks exactly like yours and need one myself just not sure where to get it and don't want to get tue wrong one can you help me out buddy?
you need to contact the manufacture of your motor. I would suggest buying a new motor and swapping out the internals.
@@TheHowtoDad Thank you for replying but the thing about buying a new motor is it's about 300-350.doolars and I only paid 800 for tue bike itself. What started as the axel spinning out of the dropouts is now possible dumping the bike in tue trash or maybe turning it into just a regular bike with no motor in the hub. Sucks because it was such a good bike for me never had any problems with it and is only about 6 months old and now I can't seem to fix it the rear wheel keeps spinning out and I either get a new axel or like you said a new motor which I actually don't have enough money for at the current time. Anyways thanks for the good advise I really appreciate your help , thank you and have a great rest of your day .
@@TheHowtoDad I contacted the manufacturer and they told me they don't sell the axel separate they only sell the core motor which is $299.I swear the axel you have is the exact same one as mine.
@@khanhknapp the axel cost me $100 and you can see how.much trouble it was to swap it out. for $200 more you can swap the internals, and be done with it.
Can you send the link of axle?
I need to replace the wire harness in your first step. I have to pull off the cassette correct? How did you do that with the wire coming out I can’t seem to find a cassette puller for the bafang hub??
bring it in to a local bike shop, they will be able to get it off for you
What’s this all aboot?🤔
Your video is awesome I use it as reference for me taking apart my hub motor to replace the axel just like you but I'm stuck and need some advise .The part I'm at is something you called a "Sur" clip not sure if that's the correct name but what's the name of the tool you used to take it off and how can I remove the "sur" clip if I don't have that tool?
ahh! good question, it's a circlip. you need circlip pliers. available at any car parts shop or online
Where did you buy this axle? I'm looking for the second day I can't find it.
The rear bike calf always comes out of its place, knowing that I'm installing it properly and rearing it.
Hello, you are great. What site did you get the axle from?
you will need to contact your motor manufacturer DIRECTLY. NOT the person you bought it from, contact the MANUFACTURER.
Thank you
I want to try and build a hub motor from scratch. I wonder if anyone has information on this.
that's seems like a silly project...but I guess you'll learn a lot. I'd suggest getting a broken motor and rebuilding it
if it was mine....i would use Mobile red synthetic or red and tacky synthetic on the gearing
cool
How did u remove the gear case
do you mean the cassette?
You could also weld on the worn threads and make new ones.
that's not a bad idea. build it up then rethread it
Great video.
Question…does it matter if the hall sensor replacement is unipolar or bipolar?
Can’t find any information online or on UA-cam.
/Bklyn👑
that is beyond my knowledge...
how do you remove the 3 plastic gear wheel?
each gear and bearing is held on by a small circlip. Use a pair of circlip pliers to remove the clip and then they simply pull off. DO NOT try to remove the circlips with anything other than the proper tool, you can/will cause damage and can easily injure yourself if you slip.
shoudldve lightly lube the outside of the wire, itll go in easy.
Hey @Howtodad loving the channel, just found you. Actually have been looking at your ski build video and had a question about the way you made the vac bag with the sealing valve so you could use the shop vac. Was thinking of using the same method and wonder if you could share any insight. Ps sorry for the irrelevant comment to this video, just figured with this being a newer upload you might see it. Figured I’d ask, but if you don’t have time I totally understand. Have a great day!
Hey Cody! I answer all my comments, even from REALLY old videos!
as far as the shop vac method goes, it worked, but a stronger vacuum pump would work better. Something you might try is using the shop vac to pull the bag down and then use a hand pump to pull the vacuum down futher. But, like I said, this worked!
If you have more questions feel free to email me hidden bed desk at gee mail
Beautiful 😍
Quick question. Am I. The process of rebuilding my motor and I have lost the the shaft key,or pin. The small metal bit. Do you know the specific size for yours.
I don't have that info... sorry
There's no way of testing the hub without opening it?
dunno. this video is about changing the axle
Hi, what does it sound like, where can I get an axle for the wheel, I can't find it
you need to contact the manufacturer directly
@@TheHowtoDad how do I do it?
instead of replacing the axle, could just re thread it for a smaller diameter. m12 --> m10
where do you get new axles anyway?
also the commutator is electronic, the part with the magnets is the rotor and is the rotating part
I thought of that, the problem with down sizing the thread is making the axle smaller, and therefore weaker
@@Blox117 thanks for the clarification...I get things mixed up
@@TheHowtoDad yeah but if your bike aint that heavy, plus your cables exit out the side and not through the center of the axle right? that's still like 10mm of steel cause the axle flats themselves are only 10mm
@@TheHowtoDad nvm yours is through the axle
Didn't you use loctite?
@@ercantopuzoglu no
Hello, i have a very litle play on my hub, but is work fine. Is normal ? Tank you...
I don't really know what you mean. What type of play? in the freewheel? in the hub? the axle?
Hello, on the hub, you put the hands on the wheel and make movements right and left. U ear a litle " tec tec tec " very faint.
@@manuelmatos7199 that is something you should definitely monitor
@@TheHowtoDad ok, tanks...
Very difficult. For my nerves it's better to buy a new motor…
it's probably better all the way around. easier, faster, and arguably cheaper
That’s what I did! I bought a new motor. The shaft design is so bad imo. These aren’t made for easy use and repair. What a shame. And yes the small hole for the isolation is making it even harder to repair. How do you remove a broken wire when there’s the foamy silicone or whatever that is?
Buying a new motor means to just buy a whole new tire, correct?
@@dwainedillard5021no. I bought the motor and swapped it with the old one. So I had to remove the tire, unscrew the spokes and detach them from the old motor and then redo back everything with the new motor.
Don't be scared dude, I did this with my eyes closed
It's good 👍
But details for connecting the wire
Really good thank you 🎉🎉
Any of these wires restrict the bike?
restrict it?
@@TheHowtoDad sorry i meant derestrict, i have a Swifty Electric Mountain Bike with Semi-Integrated Battery, that i would like to derestrict
@@allegedlygazz4566 no, that's done with the cantroler software
@@TheHowtoDad im not sure you can use that on my ebike, have you had a quick google to look at it? Id really appreciate it if you have any other advice
@@allegedlygazz4566 sorry, that's outside my scope of experience
What's the power of this motor ?
750w
@@TheHowtoDad In that case my 250W one should not have that problem.
@@Wojtekpl2 I wouldn't assume that. You should ALWAYS use a torque arm.
@@TheHowtoDad I got special washer in the kit, to hold the motor in the fork... I might consider buying torque arm but I don't feel it is necessary. Especially for city riding.
@@Wojtekpl2 I would not trust that washer, especially on a fork. but I wish you luck
What motor is this?
This one is a Greenpedal 750w motor, but is basically identical to a Bafang motor
@@TheHowtoDad thanks :)
I think I'll just buy a new motor if it comes to that
ya, that's the reasonable thing to do...
Gracias pero no entiendo inglés
"Fartin hurt"
Everyone keeps telling me to change the whole wheel but I'm sure that not the only option
definitely not! you can easily swap the internals with the same motor. buy JUST the motor, remove the cover, remove the internals, swap for the other motor's internals. will take 10 mins
You made my eyes bleed by uncovering the engine with the chisel.
sorry to hear that. the chisel worked really well to get under the seal to wedge the motor cap off.
Cheaper to just get a new motor
These are true words! Pinned!
I can not find axles for sale ANYWHERE. can you point me in the right direction please?
I had to contact the manufacturer directly. the axel was $90 and shipping was about $20. a new motor cost me $200 and took 10 minutes to swap out
@@TheHowtoDad damn.. i ended up just linishing the threads off with a flappy disk on the grinder until a smaller threading dye would fit. then used slightly smaller nuts. worked well, cost nothing.
@@TheHowtoDad keep in mind, my cable was intact unlike yours. got it fixed before it was too late. hah
come on dude its a bike u dont need to screw a nut on like that.
lots of torque in that motor...
Protip.. stop talking.. us adults dont laugh at the kid'ish explanations.
Where can you buy the right iron pipe?
traduzione: Dove ei compra il tubo di ferro idoneo?
do you mean the axle? you will need to contact the manufacturer directly.
There's no commutator on a brushless motor. That's what the hall sensors are for. The rotor is the outer part with the magnets. Hub motors, like ceiling fans, and ebike motors have the rotor on the outside and the stator with the windings in the center.
awesome! thanks for that explanation
For clarification not all ebike motors are like this, (most) geared hubs are, but direct drive are not. The technical term is "outrunner" vs "inrunner" motor.
Where I case I ever need a hall sensor, where would one find those? Plus I just bought another e-bike like the one my wife has, when I was pushing it in the shed the back wheel was a bit tight, not real bad, it could be the disk brake or if it is in the hub what could it be? It hasn’t been used for about 4 years, it’s been inside the whole time. It actually has a lot less miles than my wife’s,, it’s an Emmo monster. They are good bikes, only paid $300 for it. Very good shape other than battery’s and that stiffness
My e bike started acting goofy. Just pedaling freewheel works and change stays on. The second I give some power it’s like the freewheel portion of it locks up. Kicks the chain off. I was thinking a loose magnet but not certain. Any ideas? I had just put new meat on it. When I first turned the wheel there was a clicking sound but couldn’t tell if it was that or brakes. LCD no codes
Love this video. Thanks for the great break down of parts and framing great shots of the work. These little motors are really amazing.
Wearing safety glasses is a great tip , those c-lips could put an eye out !
yessir
"OOOOOH THERE'SNOGOINGBACKNOW" I felt that SO MUCH. I always feels so freaked out when a project requires me to mess with wiring. Thank you so much for making this video! If I ever need to disassemble my ebike's motor, I'll feel a lot more confident!
ya...it's always nice to know what's in there.
The problem you had feeding the wire into the new axle. Next time take some 50 lb braided fishing line it's got the diameter of about 12 lb test strength and small diameter. Tie the braided line to the wires harness feed the fishing line through. Before you put the axle in. Then once it's in the braided line will help you pull the wire through. That's all I've done it and works good also you can take something basic like butter from your refrigerator put it around that harness it'll help it feed it through through with ease. Interesting pointing out that hole it's supposed to take Grease. That was frustrating how to take it apart again. Anyway great video
I’m having the same issue! I hope that Violamart will send me a new axle and bearing set
Cool hard job done, so I decided to don’t do it my self. To complicated to change axis my self.
Thanks
You save me time
It is hard to see but it does not look like there is any insulating paper on the stator windings. I burned out a 500w unknown brand geared hub after 5 years and pumping to many amps into it at the end. It is totally fried with black windings and melted wires. I am in the process of rewinding it and after removing the copper wire there is no evidence of any insulating paper. Unless it vaporized which is highly unlikely none was used. It appears that the stator was just coated with clear varnish and it relies on this and the wire varnish for insulation. There was just a thin coating of white powder under the winding on the stator which I cleaned with a small brass brush on a dremel. I will rewind with fish paper like it should be.
save yourself the effort, buy the same motor and switch out the internals. recycle the old core
Knowing me I would have just rethreaded the shaft for a slightly smaller size nut with a thread die?
I did try that. didn't quite work..would have required a lathe to machine the diameter, then die to thread. The moral of the story is: install a torque arm.
What a dope, have a script to read off of, or know what yr going to say b4 making a video or yr drunk or high.
thanks for the feedback. I look forward to seeing your videos
Lube the shaft as said, (LOL....not really...), and maybe pre insert say...12lb fishing line, and then nail knot it to the cable to help pull with the push.
That's a motorcycle-handlebar-wiring trick.
Seems like it's better and definitely easier to just replace the whole motor
I would 100% agree. a new motor is only $200. and you could easily just swap the internals.
Looking to buy a replacement motor that’s a 52 x 7 50 or 1000 but I can’t find one. It’s for my Ecell bike.
Or find someone that can repair my cable on my 750.
I’m out in Riverside California.
@@johnejohnsoninformationtec8998 cables are fairly easy to fix
Damn. ill just buy a new motor;-)
honestly, that is the easiest solution. if you buy the same motor you can just swap the internals. takes less than 10 mins
Very good video, One thing I would include, if you have never done this before take lots of picture to help you remember how to reinstall thing back in the correct order a lot of us have done this so much we make it look easy.
Milion like.
balls of steel using a drill to take out phillips screws
I hate Phillips...
Thanks I just needed knowledge about shaft removal. I have a tricycle adult with a front hub motor. I converted first a 1000 watt. Kept blowing off the forks but fixed now it works pretty well. Now put on 1200 and thinking dual rear hub motors my trike has a solid axle. I am thinking about pressing them onto my axle. This shows possibility was that axle staggered and middle larger ? It looked like that. I don't know about this but ... Thanx for the post.
What are you thinking dude? Leaving the winding even nicked, can reduce the flow of current! All windings have a varying amount of insulation. Yeah, it's thin, but it's there. You can't assume to suck current through one wire into the adjacent wire. One strand will screw up the whole magnetic field. I would considder rewinding it with a slightly thicker, well insolated(dark purple/red). This will most likely increase your lost torque, and then some. Ask someone with hands on experience.
Great tutorial. Needed this.
As mechanic, the best advice you have is wearing safety glasses.
I came thisclose to losing an eye but for safety glasses.
/Bklyn👑
a slightly less expensive way to fix this shaft would be to cut off the stripped rod and drill into the central part of the shaft - finally, weld in place and re-thread. Next time, put the wire in first then seat the axle into the stator.
feeding the cable in i actually striped a couple inch of the sleeve and the other wires turned much easier no tape no or fishing tools other then the needle nose as they protruded i watched many videos on the rewire and when i stared my rewire i done the opposite lol i cut the wire from the end of the axle as only 1 left and pulled the rest into the stater side as 1 at a time took no effort then removed sealant and then rest of sleeve and as i said striped a few ince that would be needed after to rewire and it just slid in like butter resealed and then rewired happy camper i should have made a vid myself make all these difficult looking ones null and void ill do it on next 1 i think
Hello mate, I just bought a second hand e-bike, I was cycling and all of the suddenly my motor disconnected from the wheel it self, the motor is spinning yet the wheel is not, obviously its a rear-hub motor am talking about... I am wondering is it worth it for a newbie like me to even attempt fixing the problem? I am motivated yet dont have tools... is better just to buy a new motor? I realised the wires are damaged ... dont know how to fix them probably with duck tape for now 😂... give me any advice please, would mean alot to me ❤
from my experience, it is easier to buy just the motor, then swap out the internals. just make sure you buy the same motor
@@TheHowtoDad what do you mean by that? Does it have to be the same brand? 😢
@@WazaAaA420 if you are just going to swap the motor internals, I would deffinetally get the same brand
@@TheHowtoDad thanks alot man, really appreciate ur advice
Excellent video. Shim issues. Interesting I've had had the motor out to regrease and clean the gears, it all turns fine until I tighten it up. It's if it's catching, I thought I was missing a shim on the in side of the hub casing where you accidentally put one. Have you any suggestions why it might not be turning when I tighten back up . If I rest the motor back in lined up with the gogs, it drops in fine . It turns in one direction but not the other and when I put the screws in it doesn't turn at all.
Where are the wheel bearings? At 0:49 it looks like the wheel bearings are part of the motor's plate cover? Is that so? How do you get at those in order to clean and regrease them?
your lucky that the clip did not get wedged into your chin.
magnets are very powerful and you could get pinched very easy if the rotor should slam back on
if the bike came with a basic teardrop shaped torque plate that should not have happened.
i know the radwagon 4 has a torque plate that gets bolted to the frame and uses a rebranded bafang hub motor
Thank you for the tutorial just save my self buying a new emotor and fix it my self!
A little alcohol goes a long way to helping things slip together, or come apart. (Except for ferro-fluidics). What's in like flint mean?
Is there anyone who can send this part of the electric bike to Turkey? If your answer is yes, reply me
It looks like the wheel is on the Ring, the motor on the planets and the pedals on the Sun?
Great skill and patience good job😍😍😍😍😍