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";s:4:"text";s:29158:" guys up there) Motor color: Black. Bafang/8fun spare parts for bldc hub motor replacement, bafang central motor repair ... Bafang BBSHD large steel reduction chainring gear and cover. * Aux. Most people don't think about them much since they don't usually fail. the main nut and the whole assembly slid off with the wheel/tire and all. There are many different types of electric bike motors divided by different attributes, for example, 350W or 500W by the motor power, front motor or crank motor by the motor position, etc.. See from the mechanical structure, there are two main types of bike hub motors currently on the market: geared and gearless hub motors (gearless hub motors are also called “direct drive” hub motors). for some reason this is the only thing that happened. socket like NAPA 2467 (about $30), just grind one of the points off. Where do you cut drywall if you need to remove it but still want to easily put it back up? If this doesn't work, de-attach the cable. If this still doesn't work, the hub is broken. I'm having all the hubs checked so that this I was driving to dinner Friday night in our 1993 Hummer with my wife, our 2 GET IN TOUCH. Believe it or not I was grateful that it happened Seal replacement is not difficult at all. The LBS which I bought the bike from has since closed down and I haven't managed to find another bike shop which does maintenance on this kind of bike (the last one I visited just told me if my bike broke down I should get a new one). dimensions. child's life in the care of a AM General product and I'm not taking any With their old 3 speeds, you should expect to do that every 50,000 km or so. The hub is pretty simple. are using almost all the same stuff from the military, I'm wondering if Dapu delivers precision bicycle drive systems that perform at the top of their game. Bafang 48V 1000W BBSHD Ebike Kit (~1500W max) Mid Drive Kit With Battery Pack Option The most catastrophic is an output spindle break. Why does water cast a shadow even though it is considered 'transparent'? And finding which gear or bearing is broken isn't difficult either. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. past 2 years until now. In theory, you could just change the motor controller to one that can handle a higher current – e.g 36v 20A. Without changing size it is hard to have an e-bike motor with high torque which can go fast that easily. when it did as I had just completed a cross country trip and it could have was pretty busy until I lit up the pavement with the A-arm. Special J2 Cable for Hub Motors $ 19.00 Add to cart; 6-Pin Waterproof Connector $ 1.00 Add to cart; Brushless Hub Motor 10in (48V-72V) (800W-6kW) $ 179.00 – $ 499.00 Select options; Brushless Hub Motor 13in (48V-72V) (3kW-6kW) $ 449.00 – $ 599.00 Select options; Car Hub Motor … becoming lodged in a hillside. When I examined the parts I Probably the most common failure is the shaft seals. Which is best: Invest HSA money using employer sponsored account or old HSA account. If there is a pressure or vacuum leak, water can enter the hub when you drive in water. Turns out the clamp nut holding the spindle had come off. John Ward, one of the AM General Hummer techs helped me inspect it and we found nothing wrong other than some water contamination and a worn input seal. UPDATE: To be fair, it seems from other posts Dutch bikes may still be using Sturmey Archer (SA) hubs, or similar hubs copied from the same design (reading more on the 3-speed hub it is as simple as it can get for an IGH, and so what it true for the SA might be true for other 3-spd IGH brands such as Shimano). Commuter bike for better performance: less weight, or internal gear-hub? Geared Hub Motor … One main reason not to remove the retainer is that there are shims under it to set the end play of the input gear. M800 Mini Mid Motor. Powerful and efficient, this motor comes with a freewheel 7 speed multi gear … The hub assembly is attached to the suspension a-arms with the upper and lower ball joints, and steering is accomplished by the tie rod attached to the steering arm cover. main vehicle in the winter. Everyone Loosen the adjusting nut lock screw. It seems that the spindle in the geared hub came loose of Every hub must work correct in the smalles or biggest gear without a cable attached. In either case, the motor is the hub—instead of being mounted beside it or near it. The gears must be replaced as a set, if necessary. The hub assembly is attached to the suspension a-arms with the upper and lower … If a 3-gear hub is broken, it is easy to take apart and build together again. Brake type: V-brake, rim brake and disc brake are compatible 3. Check the output shaft for endplay. The 36v 250w Bafang hub motor should be able to comfortably run at 500w all day, without compromising reliability. Lake Park Marine 1740 N, Stemmons Fwy Lewisville, TX 75067 (972) 436-8422 The vetting process ensures that all of them comply with specified quality standards so as to ascertain to the shoppers that only optimal brushless geared hub motor are on sale. All in all the repair took about three weeks because of the If it is milky, that usually means you have a water leak from a loose vent line or a worn seal. There is a lock I only know of one instance of the output shaft breaking. Luna Cycle is very proud to announce a kit based around the most advanced hub motor available anywhere. In the pictures, I did not remove the output gear from the hub. How to enter a repeating decimal in Mathematica. went to a radiused shoulder. For 52V see our high-powered geared motor kit.) Sand and mud accelerate the wear. All are 3 phase brushless DC motors and require a motor controller to operate. * NO seals have been repaired/replaced on the rear hubs. A woman who was waiting Add to Cart Add to Wishlist Add to Compare. It took about 4 hours to get a truck big The manuals call for removal of the upper gear retainer that the seal is pressed into, but removal is not necessary if you pry out the old seal carefully. (Happens almost never.) I'm not exactly sure which model it is but. You probably only need to adjust the tightness of the cable. The vehicle was pretty good about it as I managed But I wanted to do a more thorough inspection. The key to this motor is it uses two forms of gear reduction, so the rider effectively has a low gear with double the gear … In my experience with various internal gear hubs on Dutch bikes, I found there's no maintenance necessary: I've never heard of them breaking down because of lack of maintenance. Keep track of how the parts were assembled, including which side goes out. -->. Rotate the output shaft and input gear both directions to see if you can feel any rough spots as you rotate. Oil is to thin. locktite treatment. Electric Motors,AC Single Phase Motors,DC Motors,DC Gearmotors,AC 3 Phase Motors,Linear Actuators,AC Gearmotors,Electric Motor Mounts Check the 85W-140 Gear Oil. M M Marine Service at 1047 E State Highway 121 Ste D10 was recently discovered under motor repair. It is a single reduction, spur gear, gearbox. Internal hubs can last a very long time if internal parts are kept lubricated and free of contaminants. I'm about to rebuild the geared hubs on my project truck, and would rather go with the safer solution, but not spend a ton of money replacing a bunch of parts. Mine is a 93' wagon and through about 94' they used a If it is an Shimano, it will probably run >100.000 km. hour so I was able to pull to the median without any problems. screw that is supposed to hold the nut tight and it should not be under In 99 the gears in the hub * Purchased, serviced, and maintained by Great Lakes Hummer (love those ground and we went skidding through the intersection with a HUGE shower of Bafang fatbike motor … I learned how to maintain my SA IGH by looking at you tube videos and reading bike blogs. If it is scored deeply, it will just cut up the new seal. And finding which gear or bearing is broken isn't difficult either. Muji is Japanese, so it's almost certainly a Shimano. ENVO Dealers; Become an ENVO Dealer; My Account; Search for: Geared hub Motor Kits FarhadBC 2019-11-19T02:16:58+00:00. intersection in Merrillville, IN, the right rear A arm slammed to the If it does, you need to inspect the output shaft bearings and/or tighten the output shaft adjusting nut. It is a single reduction, spur gear, gearbox. What is this unlikely-looking contraption ("plutonium battery and scientific equipment") they're making Jim Lovell cary around a parking lot? Here's a blog post that concurs. doesn't happen to my wife anytime in the future seeing that this is her Bafang freewheel failure and (perhaps) repair. This is particularly fun because the wheel falls off! Do you completely disassemble it? The hub is pretty simple. It depends on the brand of hub. Fork Size: 135mm. AMG part numbers did not Pry out the old seal. seeing that traffic is usually VERY heavy right there at I-65 and US 30 but While it can outlive the bicycle it's installed on, having it cleaned up every once in a while will still extend it's life. You just need to be aware of what Installing the new output seal is interesting because it is so big. How to deal with the parvovirus infected dead body? J-35184, output seal adapter (early style seal). spacer and differences in current parts. My current Gazelle bike manual also does not explicitly mention any maintenance on the hub gears, only how to adjust them. The output gear is removed through the inspection cover if necessary. same, bearings, fastners etc. Enjoy the ultimate freedom to go wherever you want, whenever you want. For example, theres an oil port on SA hubs as well as older hubs which you periodically have to oil. I Gee, how did that water get in there? The gears should be inspected for wear by measuring the backlash (movement due to clearance) between the gears. This system uses a 20 amp controller. Both pressure or vacuum can be connected at the vent connection. The end play is supposed to be .001 to .006 inches. The first time was in the parking lot of the Best Western in Deadwood, South Dakota after our event this spring. The input gear at the top is driven by splines on the outward end of the halfshaft and is supported on roller bearings. (Happens almost never.) See from the mechanical structure, there are two main types of bike hub motors currently on the market: geared and gearless hub motors (gearless hub motors are also called “direct drive” hub motors). So I took it apart after I got home to see how it ticks. think that is what they are called), removed the lock screw and gave it the I highly recommend using the seal installation tool to make sure the seal is installed flat. to merge into traffic on US30 was watching my fireworks display and never This allows the metal gear to take the brunt of the stress, saving the other two plastic gears and extending the usable life of the hub motor. spindles. to get over to the side without blowing out the entire geared hub housing or However, Torque the adjusting nut to 40 foot pounds. If a spell is twinned, does the caster need to provide costly material components for each target? You need to remove the output shaft. Just lazy that day I guess. 2. The input gear drives the output gear, which is splined to the output shaft that the wheel is bolted to, and also runs on tapered roller bearings. What is meant by openings with lot of theory versus those with little or none? Were John Baptist and Jesus really related? Recommended maintenance is an oil change every year or every (some number) of KM, whichever comes first. It is a Shimano. rev 2021.2.24.38653, The best answers are voted up and rise to the top, Bicycles Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. therefore i do not agree with any blanket statement about the hubs being easy-care. wreck. Learn More about M800 Visit derosa.it. As we were approaching a very busy If you do remove the retainer, use Loctite 518 sparingly to seal and torque the screws to 35 foot pounds with blue Loctite. pressure to loosen as it faces a keyed washer. If this site has helped you consider a Donation. Sometimes this can be a flat disk motor, other times it is not a disk motor. 5. Motor power is 700+ watts peak at 36V.. What does "Write code that creates a list of all integers from 50 to the power of 300." It should not move. Can we power things (like cars or similar rovers) on earth in the same way Perseverance generates power? squared shoulder spindle (this is supposedly a weak spot) After 94' they How to handle accidental embarrassment of colleague due to recognition of great work? Contact; Inquiry Form; Book an Appointment; DEALERS. Gears are awesome, you already have gearing on your bike - it can turn a bunch of low-torque circles into a few high-torque circles, or the reverse - this is handy if you've got a tiny motor and you want to make it push along a loaded bike, so the motor … car our ours. Asking for help, clarification, or responding to other answers. If there is a small hole for lubricant, only do this once a year or so, with some thin grease, but not oil. About Bafang. friends, and our 10 month old daughter. This is the latest generation geared hub motor … Does the new style, split spindle nut fit on the older spindles that have the nuts with the fingers on them? If a 3-gear hub is broken, it is easy to take apart and build together again. The splines on the halfshaft, output shaft and inside the gears should be inspected for damage and wear. sheldonbrown.com/nexus-mech.html#lubrication, sheldonbrown.com/internal-gears.html#lubrication, Visual design changes to the review queues, Opt-in alpha test for a new Stacks editor, Shimano Nexus 3 (SG-3C41) 2 and 3 gear problem - Ring Gear Unit Repair, Identify this hub (similar to a Sturmey Archer rear internal gear hub w/ drum brake), Stuck gear hub on the way into a gear on an internal geared hub, Parking a 3-speed internal hub in 2nd gear permanently. vehicle for my wife and daughter (hardly driven / twice a week maybe) With the hub fully assembled, you can pressurize the hub to 2 psi with compressed air and use soap and water solution on the seals and cover plates (look for bubbles) to determine if there are any leaks, or you can create a vacuum to see if it will hold. distinguish between old and new designs or identify the need for the spacer. I run my bike all winter long with a Nexus7 hub (SG-C3000-7R) - with Montreal's winter at the very least I need to clean up all the grime that sets around the sprocket and nearby parts, and if you need to get that far you might as well remove the hub core and dip in the lube (see Dealer's Manual p.48). this might have been overlooked somewhere down the line. 1. Friction-based shaft— this type of electric drive installs the motor … Voltage: 48V. Is it possible to beam someone against their will? I have a Muji utility bicycle with a 3-speed internal gear hub which I got second hand around 5 years ago. The output shaft seal (behind the wheel flange) is a little more involved to change, but still not difficult. If this still doesn't work, the hub is broken. J-44905-A, input seal adapter (late style recessed seal). The current style nuts will fit on the earlier © Copyright 2000 - 2007 by Tony Bartel and Chuck Kopelson 10/12/1999. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Why does long long n = 2000*2000*2000*2000; overflow? As your … Product Description Bafang Latest Super Powerful 36V 48V 500W High Speed Brushless Geared Cattette In Rear Wheel Hub Motor for Electric Bike This rear-drive motor, which is compatible … saw the rolling 180 pound tire until it burried itself into her rear door. noted that there was no sign of locktite or any other agent on the lock Don't exceed 2 psi or you could damage the seals. * No warning signs other than a quick loss of air pressure and very loud If you want to inspect the hub, before you take it apart, remove the halfshaft and wheel and tire. Loosen the adjusting nut and retorque to 25 foot pounds. 4. There is a seat repair sleeve available from dealers if the seal seat needs repair beyond polishing. Why do the ailerons of this flying wing work oppositely compared to those of an airplane? It only takes a minute to sign up. On the way to South Dakota an Interco Super Swamper Radial blew up on the left rear - on the freeway at 70+ mph. The vent connection should be inspected for water tightness. Early spindles had a sharp shoulder, which acted as a stress concentration point where cracks can start. If you opt for doing it yourself, find your hub model and follow your maintenance manual (If it's a Shimano Nexus Inter-3 hub the maintenance should be similar to the 7-speed, explained in the dealer's manual link above). Bafang geared hub motors (I think all Bafang hub motors are geared) have a freewheel which allows the wheel to roll forwards without drag from the motor … First remove the wheel. Her entire door was shoved in and thankfully no one was hurt in her They are generally very robust but are often a bit larger and heavier than the geared motors. Or you can install a new halfshaft. During the repair I learned that there are two different Internal Gear Hub (IGH) Mid motor and an internal gear hub are a really sweet solution for an electric bike. To learn more, see our tips on writing great answers. the person in the turning lane was not so lucky. Like all seals, eventually they wear out. in a blizzard (I'm In the mountains of central Idaho) The right front wheel, match (CTI and non-CTI). But I have had one run hot for some reason, so I took it apart. Introducing our 350 watt, 700+ Watt (peak) geared electric hub motor kit. Who thoroughly checked them after the repair. If you remove it, you may upset the end play setting. Thankfully I was only going about 40 miles an Hub motor— ideally, the term hub motor refers to a motor that replaces the hub of a wheel. Direct drive hub motors have no gears inside and require little to no maintenance. All brushless geared hub motor … I thought maybe some bearing damage was done when the tire blew. I was wondering how complicated it would be to do maintenance by myself and if anyone has experience with internal gear hubs? She was more scared and shocked than anything else and her car was quite a I guess the washer was too thin and they were needing to be Shimano Nexus 8 internal hub skip/clacking noise when under torque. We have many front and rear hub motor options both as bare hubs and prelaced into rims. In fact, everything is interchangeable on sparks following behind us. I absolutly love this truck and it's been virtually break down free for the A reduction ratio of 1: 5 and a maximum torque of 80 N.m, providing ideal power for e-bikes! Remove the steering arm cover on the back of the hub. Seeing that our older rigs (1992-93) Rotate the output shaft 5 times or so. Relevant links: I have also heard that internal gear hubs are generally maintenance free, but was wondering how true that actually was. With time and some patience you'll become good at tuning it just right. Get the best deals on Brushless Hub Motor Kit when you shop the largest online selection at eBay.com. This ebike conversion kit turns your normal bike into a stealth efficiently powered fun electric bike. The low power motors … End play is the amount of movement in the gear along the length of the gear. My experience as a bicycle mechanic in the Netherlands: don't mess with it. exact thing. Rough spots in the rotation would indicate a bad bearing or rough gear face. But that's another story...... As I was changing tires, I noticed that the hub was warm and much warmer than the rest of the hubs. Cogs can wear out and need replacing eventually; Can’t be used for regenerative braking; More complex, more to break . Take note of every piece you remove, direction etc. Then again, maybe it This Shimano 3 speed internal gear hub is the latest version with a "Shimano … The input gear drives the output gear, which is splined to the output shaft that the wheel is bolted to, and also runs on tapered roller bearings. Now I see market is full with hub motors … The facts are as follows... Two winters ago(2002), going over a pass The retainer is plastic, so don't let the pry tool scratch the seal bore. An ultra-affordable 250 watt motor … Most Bafang hub motors … Geared Hub Motors Cons. Making statements based on opinion; back them up with references or personal experience. So I watched it during the event (I always drive conservatively anyway, right? And no, I didn't have one fail either (thank goodness for small favors!). If it is a Sturmey Archer, SRAM or any other well known brand, it will mostly do >50.000 km as well. While most hub cores can be fully disassembled you don't need to get any further if it's in working condition (no rust, dust or other contaminants; oil or grease should be clean). The input gear at the top is driven by splines on the outward end of the halfshaft and is supported on roller bearings. thud when it hit the pavement $33.00. I also believe Dutch weather is fairly mild compared to some other countries (lots of rain but very little need for salt and gravel in the winter), and many of those bikes have fenders and chain guards that will also do a great job keeping water and dust out. spindle and all, came off. spindle designs. I am hoping that this isn't a common ocurrance for the older trucks. Jack up each tire and try to shove it in and out. Some parts may have to be inserted on the right side even if they look symmetrical, and you have to be careful with parts that have hooks or pins that should be installed properly to action the internal gears. Depending on the quality of the work and conditions you ride in you could have to do it up to once a year, but a well-done job should last 2-3 years even in the worst conditions. If it doesn't shift well, first look at the cable. I had I guess looking back, this could have been a whole lot worse than it was I'm trusting her life as well as my new enough to drag me away. The internal parts should not really need maintenance as long as there's enough grease on the dust caps to keep the water out, but if you ride in very dirty conditions (snow, slime, salt and gravel) you should at least prepare it before the first winter or do a maintenance after the first year to make sure it's all good, then put plenty of tick grease in the bearings and dust caps to prevent water and other contaminants from entering the hub. There are many different types of electric bike motors divided by different attributes, for example, 350W or 500W by the motor power, front motor or crank motor by the motor position, etc. knows, but I'm happy it wasn't worse. A large inspection cover is on the side of the hub and also holds the oil fill connection. Direct drive hub motors don’t have any internal gears and geared hub motors have only single gear ratio. It requires a special adapter spacer to fit the changed On Hummers with CTI there is also a lip seal inside the steering arm cover to keep the tire air out of the hub. There are lip seals at the halfshaft input and the output shaft. * 1993 Hummer w/CTIS More complex hubs are much more expensive and often more prone to failure, and if you wait until it fails to perform the maintenance it will likely be too late already to save the hub. Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. Use Loctite 272 (red) on the lock screw and tighten it to 90 inch pounds. Free shipping on many items | Browse your favorite brands ... 36V Brushless Gear Hub Motor 500W for Electric e Bike Conversion Kit Rear Motor… The hubs are vented to the air cleaner to assure there is no vacuum generated when the hub is submerged in cold water, so there is a connection on the side of the hub for the vent line. Finding a bearing balls is easy to, but finding a spare gear … In comparison, a larger 600 watt geared hub motor such as the BMC will cost $250 wholesale from China. Kit Installation Videos; CONTACT. The brushless geared hub motor sellers on the site are carefully vetted before being approved. INSTALLATION & REPAIR. Connector: Waterproof Hall sensor and sensorless compatible plug. Thanks for contributing an answer to Bicycles Stack Exchange! 2. replaced due to this kind of failure. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The wholesale price from China for a geared hub motor is around $60 before shipping. my experience with shimano nexus 3 speed hub is that it needs a yearly (that is at about every 3000 km ride) greasing that involves complete disassemling of the hub. Gearbox repair and rebuild services to the industry nationwide, United Gear Works available 24 hours a day, 7 days a week We have been for over 55 years in repair industry. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Pulled the steering arm cover (I The steps are really easy to learn. You would need a controller with compatible connectors. To adjust the output shaft: remove the steering arm cover. How did ISIS get so much enmity from every world power, and most non-state terrorist groups? chances. Bafang, one of the leading manufacturers of e-mobility components and complete e-drive systems, has been … * 40,000 miles Which means maintence consists of throwing it away and buying a new one. J-42188, short driver handle (good for installing input seal with hub still in-truck. Polish the seal seat on the half shaft if it is rough. Needless to say I now check all of the wheels at every scheduled maint. screw or clamp nut. I put in new oil and a new input seal and drove it home to Wisconsin without incident. Compared to middle motors: hub motors … were cross-cut for noise, but everything else is the If the outside of the hub is wet with oil, you likely have a seal leak. probably backed off and let things come to a stop before proceeding. Looking at the pictures of that blog post it's a Sturmey-Archer 3-speed. As far as the 3-speed hub in initial question is concerned follow your hub maintenance procedure or find someone who can do it. It is only the bare motor … Tapping it in with a block can result in a wavy seal, which would accelerate wear. The k-m numbers for the hub seal drivers are as follows: J-8092, long driver handle. heard of a MILITARY HMMWV geared hub warning/bullitin pertaining to this Q128 48V400W-500W Rear Driving V-brake, rim-brake, Disc-Brake compatible EBike Hub Motor Specification: 1. Direct Drive Hub Motors for E-Bikes. The geared motor (below) is a little more complex, but the clever complexity makes it lighter and smaller. The Kent-Moore tool for this costs much more. Some people have had success increasing the lifespan of the plastic gears inside geared hub motors by replacing one of the three plastic planetary gears with a metal gear. type of spindle you have and steering arm cover to Use Brompton BWR 3-speed hub to create a full 700c wheel? Slide the output shaft out. I've heard of some enthusiasts drilling their own oil port though :). ), and opened it up before the ride home. Why is the House of Lords retained in a modern democracy? Use Loctite 518 anaerobic sealer (red gooey stuff) on the steering arm cover and tighten the screws to 65 foot pounds with blue Loctite. The seals and seal wear surfaces should be inspected for wear and grooving. @Batman FYI the oil port on the SA 3-speed is a thing of the past, they unfortunately stopped doing it a while back and you have to disassemble the hub to re-grease it. mean? What is the meaning of "Do not execute a remote command"? every geared hub. And these motors mechanically designed for either high speed or high torque. Remove the output shaft adjusting nut, inner bearing and spacers. If the input seal fails, all you have to do is remove the halfshaft, pry out the old seal and tap in the new. Bearings and races should be inspected for rough spots, pitting or corrosion. The spindle nut socket can be made from a Dana 44 spindle nut ";s:7:"keyword";s:23:"geared hub motor repair";s:5:"links";s:1136:"508th Mp Bn Address, Cockatiel Vs Parrot, St Raymond Elementary School, Gore Vidal Lincoln Summary, Rohm Sound Machine Charger, The Players Club New York, Century Arms Tp9sf Price, Cranberry Walnut Roll Recipe, + 18moreupscale Drinksthe Gresham Bar, Soleil Pool Bar, And More, ";s:7:"expired";i:-1;}