Thinner lams make DD hubs easier to pedal when the motor is off. Even if you don’t need 39-MPH, you might order the “fast” 4T if you want to lace the hub to a smaller 17-inch moped rim (similar to a 20-inch bicycle rim). That means you would have to use an 18-FET controller to safely run 50A peaks, due to more of the input watts being converted to waste-heat. 3T______15.6. 68 a), Maximum speed can be achieved : 25 - 50 km / hr, Constant current at ideal load : 15 - 35 ampere, No-load speed: 24 v 250 rpm (0.35 a),36 v 450 rpm (0.38 a),48 v 650 rpm (0.42 a),60 v 800 rpm (0.61 a), Maximum speed can be achieved : 30 - 40 km / hr, Constant current at ideal load : 5-15 ampere. The Croatian company Zelena Vozila sounded crazy a few years ago, when they decided to order a large lot of these motors in order to get the factory to modify the axles to fit in a bicycle frame according to their specs (and add a freewheel mount on the right side), but there were enough crazy E-bike builders that this high-quality hubmotor is still selling to this day. Notice how thick the steel on the swingarm is! Okc Dave Ken Maruska • 9 months ago ______________________________________________. Don’t let the 1500W catalog name fool you. Seeing all the buzz about mid drives might have gotten you started thinking that the simple hub motor is dying off, but…the truth is that large direct drive (DD) hubs have remained the best option for street E-bikes that are using very high amounts of power. QS / Quan Shun, 205/50H V3 “Extra Type” $150.19 $ 150. This is my new favorite DD hub for the street. The sensors shown here are the LM35. Hub motor kit, such as throttle, controller, brake lever, disc brake and LCD monitor could be supplied 4.Customize motors as customers' special … You must either lower the amps, oil-cool the insides, ventilate the side-plates, or move up to a larger motor. 4T: 39-MPH (62 km/h) Large DD hubs respond well to ventilation or oil-cooling. This small amount of oil also acts as an immediate heat-sponge, and then it will rapidly transfer the stator-coil heat onto the aluminum side-plates, where it can be shed much faster compared to not using the oil. At 60V X 8.8 = 528 unloaded RPMs. Geared Hub Motors As you can imagine, a geared hub motor has gearing inside it to reduce the high speed of a fast and efficient motor to the low speed of the wheel. If you want to ventilate a hubmotor, I advise you to spray a coating onto the stator to water-proof it against rust (see our article on hot rodding hub motors for more details). Product Description. The QS 205 / 50H V3 “Extra Type”. It only has a single-speed freewheel (of course! ______________________________________________. Top Speed: 55 MPH. [side note: of course, the cores of each coil on both styles are still made from laminated steel]. Dump truck driver in the 2000's/SW Utah. This is the motor that started this entire category. Motor Type: BLDC Permanent Magnet Outer Rotor In-Wheel Hub Motor With Hall Sensor; Brand: QS Motor,QSMOTOR; Motor Design: Double axle without rim (not integrated), 36 spoke holes, OD 4.2mm Crystalyte recently changed the motor-case so that it uses common-style spokes, instead of the “straight-pull” spokes shown here. High Quality Lithium Battery Packs for EVs, Boats Click here to see detail. If you like the motor to stay sealed up against the rain, mud, and grit from the road…you should pay a little extra to get the aluminum stator support…it is well worth it. Once the motor gets heat-soaked, you have to lower the amps, or risk a melt-down. Here is the article on the Edge motor I tested, I like it. Each row forms a powerful electro-magnet that can be rapidly turned on and off when needed. The weaker 30mm version still has such a wide case that it still can only use a single-speed freewheel, so…I am only interested in talking here about the 40mm Crown. Concern about poor air quality in the cities has resulted in 2-stroke gasoline engines being banned in many places, Model___Kv It makes sense that a car alternator has a skeleton-ized frame to allow for free air-circulation, and they spin thousands of RPMs while producing 100A. MXUS 3000W V2 6T: 25-MPH (40 km/h) DD hubs, however…often have “some” cogging. Find more. Geared hubs have no cogging due to an integrated freewheel inside the motor-case. There is nothing quite like the feeling when you out-accelerate a $80,000 sports car with a $3000 hot rod E-bike…, Written by Ron/spinningmagnets, August 2015, Grew up in Los Angeles California, US Navy submarine mechanic from 1977-81/SanDiego. Requirements (Preliminary) • 10 kW continuous Power • 90%+ efficiency optimized for 45 miles an hour. Low speed, high torque wheel motor. ATF will not boil at the temperatures that are below the max temps we recommend for these motors, plus ATF is affordable, readily available, and already has anti-foaming agents. Leaf Bike 1500W 205/35H. This means you will need custom torque-plates to allow for the added width, in addition to needing the two torque plates for the high power. If bruchless motors like to spin at high RPMs I don't understand why an appropriately powered direct drive hub motor would not provide a high top speed as the faster it spins the efficient it should become. Any voltage above that will cause a sudden increase in the cost of a viable controller. Due to the angled holes in the moped rims, a large DD hub can be laced with a one-cross pattern, which is much better than a radial pattern (which many builders had been previously forced to use to get a large hub in a smaller rim). You would drill a small hole near the axle, and with that hole positioned below the axle, you would add oil up to that point (you don’t fill up the motor completely). 75, No-load speed : 48 v 150 - 200 rpm (0. Speed: 70km/h (30-100km/h can be customized), GoGoA1.com An easy-to-understand explanation of the hub motors used in electric cars, bicycles, and wheelchairs and how they differ from ordinary electric motors. The … If you ordered the hub from Leaf with a rim laced to it, the price is about $20 more. Keywords: Hub motor, FSAE, Permanent Magnet Synchronous Motor, Interior Permanent Magnet Synchronous Motor. If the 35mm wide stator had been made wider, you’d have fewer gears, and also…the motor would be heavier and more expensive. The popular 5T at 72V would provide 518 unloaded RPMs, and when mounted in a 26-inch tire, that would be 40-MPH (64 km/h), and…72V X 70A = 5,000W. The name Crystalyte is well known around E-bike hot rodders. Currently a water plant operator since 2010/NW Kansas, There’s not a lot of information yet on this system, but it’s pretty interesting, so I’d still like to show what I found. Top Speed: 55 mph. It Even if you don’t need more power than the other two options above this, the QS 205 / 50H V3 will run cooler than the others at all power levels. The other selections in this article only have a single-speed freewheel, so if you want at least several gears to pedal with, this is the one for you. Once you trace the shape of metal plate you’d need for whatever frame you have, the custom torque-plates can be water-jetted or laser-cut, and then shipped directly to your mailbox. However…they also have a smaller amount of copper mass than a DD hub, and they have a poor heat-shedding path. Also, if your motor is getting way too hot on a frequent basis, you might be using a motor that is too small for the job, Be aware, the Hall sensors are typically more fragile than the stator (including the fragile soldered joints), and Halls have frequently been found to die when abused with too much heat. 2★ 7T: 21-MPH (33 km/h). ★★★★★ This fact would allow you to have a smaller (and easier to fit) battery compared to a higher-voltage pack, but still holds the same Amp-hours (Ah) worth of range. 250W Central Motor, Motor with integrated controller. It is the “value” leader in this category because it costs less than the other two, and it is also a little lighter with its 45mm wide stator. The vast majority of affordable DD hubs I see have a stator about 28mm wide, has a stamped steel stator core, and use the thicker laminations. That RPM in a 26-inch diameter tire would be 41-MPH (66 km/h)…AND!…60V X 60A = 3,600W. 3. Sadly, the “H” axles have not proven to be as strong as I would have liked. Max power 800 watt – 4000 watt (4kw). Ebike Motor, Electric Hub Motor, Bicycle Motor manufacturer / supplier in China, offering High Speed Brushless Hub Motor for City Bike, Pedelec 230W Rear Motor, Rear Drive Motor for City Bike and so on. For builders who want all of these upgraded features, Crystalyte has “The Crown“, which can be had with a 30mm wide stator or a 40mm wide stator. Oil-cooling keeps the motor sealed up against outside contaminants, but…no matter how well you use sealant to enclose the motor-case joints, there will likely be some occasional drops of leakage. PRA 230 Wheel Hub Motor. High speed motors for respirators. Using 50V X 50A = 2,500W is now a plug-and-play option that you can use with confidence. This is the hubmotor that got bystanders to start yelling “That’s not an E-bike, it’s a motorcycle!”. The worst-case scenario is when you are climbing a very long and steep uphill, with no cooling-off phase. 1★ There have been many experiments that either added a little Automatic Transmission Fluid (ATF) to the motor, or… simply drilling some holes in the sideplate to let the excess heat out. Motor design: Double axle out with 17inch Aluminium rim . However, at high speed operations iron losses3 and copper losses4 including PM losses reveal that total loss is the same for both machines (p.6). A custom thick stainless steel torque-plate from ES member teklektik. So…once all the factors are calculated, each model of motor has a resulting RPM-per-volt that is applied (more volts = more RPMs). China High Speed Brushless Hub Motor, Find details about China 36V/48V Motor, Mountain Bike Motor from High Speed Brushless Hub Motor - Suzhou Shengyi Motor Co., Ltd. And make no mistake, this hub is hungry! The old common style is a thin stamped-steel plate. They are essentially an electric motorcycle hubmotor that has had its axle adapted to allow it to be mounted on a bicycle. Temp Sensors This is referred to as the motors “Kv” (19th century German for Konstant per voltage). 5T______9.0 Here is part of an advertisement for QS Motor. Useful Info: Torque ... (in watts) / Speed (in rpm) 1N*m = 141.61 oz*in = 8.85 lb*in = 10,200.0 g*cm, 1.0 hp = 745.7 watts 1.0 in = 2.54 … The 205 in the name means the stator is 205mm in diameter, and the 35H means the stator is 35mm wide (“H” is for height, the Chinese motor catalogs list their internal construction this way, viewing the motor on its side). ★★★★★ It is lighter and costs less that the thick aluminum spoke style, but when you are shopping around, the Chinese websites rarely show the insides of the motor, because most customers don’t care about those types of details. ___________________________________________________ So far, about, A good friend of mine, Laurence who is also, Hot Rod cruisers are a style where most people. Rated Power: 5000W Voltage : 48V-120V KV : 9KV Max torque : > 250N.M Efficiency : > … • Motor weight less than 30 kg • Must interface with EV-C200 controller • Acceleration from 0-60 mph in less than 15 s. • Solar/Battery power must be used • Constant Torque with speed variation. It is a high performance electric motorcycle motor, good quality, real powerful hub motor you never see. Details for 5kw electric bike hub motor QS V3 5000w motor 10kw peak power. Notice the angled spoke nipples. Speaking of watts, you could run this motor on 60V or 72V, but…it really shines at 48V. Next up is a few things that you should know, so you will understand why I am recommending these particular hubmotors, and then…we will get on to the important part…the list! Copyright © 1996-2021 IndiaMART InterMESH Ltd. All rights reserved. Here is a close-up of the copper wire coils, which are wrapped around stacks of thin steel plates called laminations. An upper heat limit of 200F / 93C is a reasonable balance between performance and caution, and that temp limit will likely allow your components to last a very long time. ), but the drop-out shoulders on the axle are 150mm wide. In this example, a motor spinning 480-RPMs, would be traveling 37-MPH (59-km/h) in a common 26-inch outer-diameter (OD) of tire, but…if you switched to a smaller 17-inch moped rim with the recommendad 2.5-inch tire, the OD would be roughly 21-inches, and then the 480-RPM would result in 31-MPH (49-km/h). Constraints. 19. ★★★★★ I can’t imagine going to the effort of buying a motor as heavy and capable as these, and then running it off of only 48V, so…these motors are most frequently seen using something between 72V-100V. 2,571 high speed hub motor products are offered for sale by suppliers on Alibaba.com, of which dc motor accounts for 8%, electric bicycle motor accounts for 7%, and other electric bicycle parts accounts for 2%. The stamped steel stator support on the left is less expensive and lighter. The stepper motors should be connected via a driver IC (like A4988) with a 1, 2 or 3-wire connection: Many kinds of wheel motors could be supplied, such as brushless gearless hub motor, geared hub motor, spoke motor, ATV motor, and so on. The width of the stator also affects the RPMs the motor will spin at (due to the increased resistance to current flow from longer lengths of wire in the coils). Lastly, IPM machine outran the SPM machine in terms of overload capability as stated by Pellegrino & … If you live where it is fairly flat, you can dial up more amps, because the motor will temporarily draw a short peak of amps when the E-bike is accelerating, but once you attain a stable cruise speed…the amps (and heat) slide down into a milder level, and the motor (plus controller) will then have some time to cool off before the next acceleration. This pic is from the original model TC4080 with a 40mm wide stator. 2020 popular wholesale, Related Products, Promotion, Price trends in Sports & Entertainment, Electric Bicycle Motor, Automobiles & Motorcycles, Home Improvement with high speed hub motor and wholesale, Related Products, Promotion, Price. Speeds of 30mph are easily obtainable with the 6 turn motor. Here is a list of some of the more popular rear hubs for building up a street-fighter E-bike that will embarrass an expensive sports car when the light turns green. 17inch 3000W Electric Motorcycle Wheel Hub Motor, 9. This hub can eat 1500W while its sleeping without getting warm. ), many motor manufacturers have begun using the thinner 0.35mm lams, which not only reduces eddy current heat, it improves the motors efficiency about 3%, and lowers the cogging by about 30%. _____________________________________________. If you use a $2 10K Thermistor as your temp sensor, the Cycle-Analyst V3 has an awesome heat management function. 2. If you see a “V1” version on the MXUS AliExpress web-page, it has the steel stamped stator support and thicker laminations. I may be getting one of these motors soon from Alan Hu for testing, and I will report back]. The next three motors are very heavy and can take a LOT of power. many thanks to ES member “neptronix” who brought this motor to our attention, and for the pics he provided. This Cromotor is mounted in a smaller rim, on Martins E-Moped. You want the “V2” with the thick aluminum in the stator support, and thinner laminations. They can freewheel very easily when not using any power. If you determine that your motor is not big enough for the job (due to frequent heat issues), at that point it will still be running and sellable, so you can apply that money to purchasing the new parts. 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