12 inch BLDC hub motor for electric bike ?

I'm in need of a simple installation electric bike motor for a special application. The subject BLDC motor look that will perfect fit our needs. I am ready to order the first to complete the prototype, but will appreciate your advice if will work properly under the following conditions: 1. Max torque 15 Kg-m 2. Speed 0 to 10 Km/ h 3. Distance between charge batteries 5 Km Important is smooth start motion (no shaking) I understand the HBL-12" 24V 250W hub motor is good for the working conditions On your internet site for this size electric bike motor there is technical performance for the 36 V model only. I need only 5 Km range between battery charges.But very important is the star movement from stop (0 Km/h) very smooth, slowly start to move otherwise possible damage of the airplane nose wheel if start move quickly and shaking. Then the question, will 36 V brushless hub motor be better than 24 V ?Since 36 V have smaller currents I have the feeling will perhaps be better starting to move more smooth and slowly... Will be great the customized low speed. But please note that this special application, not yet a commercial product, then in the last phase of development. Will you customize low speed electric bike motor at the present stage of just one unit ? Looking all your products, the choice was your Model:HBL-12" 24V 250W hub motor because so simply installation. But also, although is not our preferred solution because much more complicated installation, could be your Stepper DLDC motor, which in this case the speed can be defined by the ratio of the gears, and the diameter of the wheel (which in our case is important to be small since the device shall be below the airplane... Max 12 inches but smaller is better...) Maybe the Stepper DLDC motor have the advantage of very smooth start motion ? It is our concern to have a very slow and smooth start motion... Actually from your specifications you give for the max torque of 16000 (the point we are most interested) 243 rpm at 18 Amps, which is for a 12 inch wheel about 14 Km/h, then is very near our 10 Km/h. We believe, if we do not read wrong your performance data for the 36 V HBL 12 inch electric bike motor as it is specified is OK... Please correct me if wrong. The fact that the motor will be capable of much high speed we believe should be not a trouble, we can easily put a limitation of the speed. Still extremely important is the smooth and slow increase speed from 0 Km/h (stop) with no shacking,but we understand this is related to the BLDC motor controller, which we will test but feel should be not a problem. We need as precise as possible to control smoothly the speed from stop 0Km/h to max 10 to 15 Km/h... with slow increasing speed and keep low speed 2 to 5 Km/h .Then NOT AT ALL "on" and "off" ! Another important issue is the torque. We need minimum 15 Kg-m torque, better if 20 Kg-m... ( 147 to 196 Newton meter)- Here is a big doubt with the numbers on your performance data since indicated mN.m 16000.0 ? if lower figures could be difficult start motion when in surfaces as grass. Then I need to order not only the hub motor but also the relevant BLDC motor controller and electric bike battery. When you say 36 Volts make no difference but preferred in Europe. I choice 36 Volts... as you say... but if 24 Volts is better, off course we change to 24 Volts... we need the better solution. Normally the device speed shall be about 5 to 8 Km/h... for safety reasons... and torque between 147 to 196 Newton meter at 0 Km/h to start motion. Hub motor, BLDC motor, bike motor, electric bike motor supplier: Leaf Motor Technology Co., Ltd Website:https://www.leafmotor.com/

2000w electric bike hub motor kit for e-motorcycle

2000w electric bike hub motor kit for e-motorcycle Q: I am going to build an electric motorcycle prototype in Russia , I am looking for electric bike kit parts with bike motor and lithium battery. A: How many motorcycle motors would you like? If just need 1-2 sets of hub motor sample. The shipping fee to Russia by air or express is too expensive. Q: I first need one set of hub motor kit for test. It’s okay for the shipping price. I also can arrange the shipping. I need bike motor controller. What’s the top speed of 20 inch 48V 2000W hub motor and 24 – MOSFET bike motor controller? What’s the peak watts for this hub motor? What’s the peak ampere current for this 24 – MOSFET bike motor controller? What’s the FOB price for 200 sets of bike kit (hub motor & bike motor controller)? What’s the warranty time? A: 20" 2000w bike kit (48V 2000W hub motor with 24-MOSFET bike motor controller) 1. Top speed:70km/h 2. Peak watts for this hub motor:2500W (Work at 48V,bike motor controller is limited current:60A) 3. This 24-MOSFET bike motor controller, peak ampere:60A 4. $380USD/set (ONLY this hub motor with 4.00-12" tire and controller) FOB Shanghai. 5. ONE Year warranty. The price for 1 set of sample (hub motor & bike motor controller) is 693USD, not including shipping fee. About hub motor performance and bike motor controller, we can customize as your order. Q: Could you make custom this hub motor and bike motor controller peak current 100a-120a? Is the wheel of this hub motor is 20 inch? What is the hub motor speed on 1000W? A: Customize 120a bike motor controller is okay. But it cost more. After install 4.00-12” tire, the diameter of hub motor tire is 51cm. That’s 20 inch wheel. Hub motor speed is about 58km/h on 1000w. After packing this bike kit ( hub motor + bike motor controller + throttle + brake lever + switch ) is 18.7kgs. Q: This hub motor on 2000W: the 2000w is the continuous watts power? What’s the peak watts power for this hub motor? Could this hub motor be installed 180mm disc brake? A: Peak watts for this hub motor: 2500W (Work at 48V, bike motor controller is limited current:60A)If work at 48V 100A bike motor controller, it can reach max 3000W. This hub motor can work at 48V-72V. We can make this hub motor with disc brake. But maybe only 200mm disc brake for this hub motor. Hub motor, bike kit, bike motor supplier: Leaf Motor Technology Co., Ltd Website:https://www.leafmotor.com

issue about electric bike kit battery

We purchased an electric bike kit including motor controller, hub motor wheel, throttle, brake lever and with 36V 10AH bottle style Lithium Ion electric bike battery that used for testing 36V solar charger from one supplier, not from leaf motor. After charging this electric bike battery for 10 hours by better solar power, full charged, we rode the bike, but hub motor wheel only run about 8km. Then we use 110-230Ac charger to charge this electric bike battery and full charged it. After test, we found this hub motor wheel is still lasted for around 8km. We use a ampere meter in series to electric bike kit system, powered on and rode it. We got the current is about 5A. The RPM is 257RM.We use 26” hub motor wheel. We calculate the speed is about 32Km/per hour. See below formula: （3.14×26”×0.0254）× 257RPM × 60 minutes ÷ 1000 (m-Km)=32km If this is 10Ah battery, per hour lost 8ah.We can use 1.25 hours. See below formula: 10Ah ÷ 8ah/per hour= 1.25hours We think full charge this electric bike battery per time, the hub motor wheel can run about max 40 km. 32km/per hour × 1.25 hours = 40 km There is definitely a problem with this electric bike battery, I’m not sure whether electric bike kit is because of the solar charging or our testing, or if it has a fault. But I need a replacement electric bike battery asap, because we don’t have any more 36v electric bike battery, and we sold 1 set of electric bike kit with li battery last week. I think BMS inside this electric bike battery no problem. The problem comes from the li battery cells. Maybe this electric bike battery had stayed in warehouse for a long time and haven’t charged it. It will make the electric bike battery cut down the achieve distances and use life. So if solve this problem and let my hub motor to work asap, only replace all cells or replace new electric bike battery. We are angry with our supplier, sent them many emails and no any reply. Thank you, leaf motor. Help us found the electric bike battery ‘s problem. We are going to order leaf’s products in near future. Hub motor, electric bike battery, electric bike kit supplier: Leaf Motor Technology Co., Ltd Website:https://www.leafmotor.com/

The hall sensor is a transducer that varies its output voltage in response to a magnetic field. Hall sensors are used for proximity switching, positioning, speed detection, and current sensing applications. Three phase BLDC motor has three hall sensors inside that are used for electric bike widely.
36V 250W brushless geared motor is popular in Europe, but in North America, people like 36V 750W hub motor more. More and more people order and enjoy these two types of DC hub motors that are called classic electric bike motors. Now they have received by most of customers because of good quality.
But when ride this hub motor bike and climb hill for a long time. Sometimes over current or over head will break motor controller's MOSFET or hall sensor.
Hall sensor is broken. The hub motor can't work. Unless your controller can drive sensor-less motor. Buy a new motor, cost more.
Replace hall sensor, cost less. Below we first instruct one type of 750w electric bike motor .
If hall sensor is broken, power on battery, you will find battery gauge works, horn works, lights work, everything is good, except when you turn your throttle, the hub motor wheel can't run.
Step 1:
Retest this hub motor and make sure it does be broken. Do you have voltmeter?
Still connect all wires and power on.
First measure 6-pin hall sensor plug, the voltage as below:
1.The voltage of red and black is about 4.5V;
2.The voltage of yellow and black is about 4.5V or 0V;(use hand to turn hub motor, the voltage will change from 0V-4.5V)
3.The voltage of green and black is about 4.5V or 0V;(use hand to turn hub motor, the voltage will change from 0V-4.5V)
4.The voltage of blue and black is about 0V or 4.5(use hand to turn hub motor, the voltage will change from 4.5V-0V)
If you can get above data it's no problem with bike conversion kit system. If the voltage of Item 2 (yellow and black wires)can't change from 0V-4.5V,Please replace this hall has a yellow wire connect.
You should prepare some tools and material:
1.Hexagon wrench (Necessary)
2.Hammer (Necessary)
3.Screwdriver
4.electric iron
5.A-B glue
6.insulated paper, insulated wire
7.scissors
8.New hall sensor
Step 2:
Take off nuts and gasket on axis and use hexagon wrench to loose 16 screws.
Step 3:
Make the electric bike motor stand and cable is bent inside. Left hand hold the hub motor and use hammer to knock the axis.
Step 4:
After some knock, the cover will take off hub.
Step 5:
Use the same way to knock the other axis, the other cover will also take off hub.
Step 6:
When both side covers are off hub, next we should take out the rotor-winding. Make the axis stands on the ground, both hands press hub motor, the rotor-winding will out of hub.
Step 7:
There are three hall sensor in three grooves around the rotor.
Use scissors to remove insulated wire and insulated paper. You will find 9-pin(three hall sensor)connect to PCB on rotor-winding. Each hall has three pin: 1:+ , 2:- ; 3:signal
For example:
Hall A: 1:+ , 2:- ; 3:Yellow wire
Hall B: 1:+ , 2:- ; 3:Blue wire
Hall C: 1:+ , 2:- ; 3:Green wire
Step 8:
Just now had known yellow wire hall sensor was broken. Please use electric iron to remove Hall A and use A-B glue to fix new hall sensor. Use insulated paper, insulated wire to fix PCB. Then re-build this hub motor.
Step 9:
Test as step 1.If can get the data from each hall sensor. Congratulate.
Power on battery, the hub motor wheel works.
Hub motor, BLDC motor, electric bike motor  supplier: Leaf Motor Technology Co., Ltd
Website: https://www.leafmotor.com/

Electric Hub Motor | E-Bike Conversion Kit™: Spokes for hub motor bike conversion kit

Electric Hub Motor | E-Bike Conversion Kit™: Spokes for hub motor bike conversion kit: Q: I ordered a 750W hub motor last month. Now I am going to fix a 20 inch bike motor wheel. Are there standard spokes with nipples I can ...

Electric Hub Motor | E-Bike Conversion Kit™: electric bike conversion kit battery

https://www.leafmotor.com/
Electric Hub Motor | E-Bike Conversion Kit™: electric bike conversion kit battery: Q: After order hub motor wheel bike conversion kit with battery. When could you ship this electric bike battery . Is it only one blue pac...

electric bike conversion kit battery

Q: After order hub motor wheel bike conversion kit with battery. When could you ship this electric bike battery . Is it only one blue packing plastic battery like the one you send me a picture of that one fix on to my frame I just need to hold it with zip ties. Dose this electric bike battery have a on and off switch. or is it a pack with like 2 battery's in a bag? 
A: This blue packing plastic battery doesn't have ON/OFF switch. Only frog/bottle style battery has this key or ON/OFF switch.
If you need 36V bike kit system, You can order frog/bottle battery.
Frog battery is easy to hold on your seat-post, don't need to drill two holes on your frame.
 We sell lithium battery, it's lighter."2 battery's in a bag" that is 24V sealed lead acid battery. It's very heavy and cheap.
Q: I didn't read the last sentence I don't want batteries In a bag because it is to big then I need the rack I don't like racks. I sent it from my IPod I drop it and catched it and I press the send bottle. So I was saying I don't like the rack, but with the blue packing plastic battery 48v 10ah  is it one pack or 2 pack that comes with the kit, and Connect to the controller. The one you Send is just one, it has 2 wires on each side is that the one that comes with the kit. and how can I turn it off and on the bottle battery is to big and long.
A: 48V 10Ah is one pack that is made up of many cells with BMS.
If we order our hub motor bike conversion kit and electric bike battery. We first to ship bike conversion kit in 24 hours. Any lithium battery should be customized as order. Because electric bike battery is different from other goods. It has use life. It takes about 7 days to customize.
There are one positive wire, one negative wire and one plug for a charger. Turn off should disconnect wires. Sure, also can connect a switch to control it(ON/OFF)
Q: There isn't the pass used for how hard you pedal, if you pedal hard hub motor will go faster. what about if I don't install the pas and I pedal will it go faster or will it go at the same speed, also if I install the pas can I still go fast with out pedaling, or do I need to keep on pedaling to go fast with the pas up hills. 
A: Our hub motor bike conversion kit can work with throttle/pas.
If both install throttle and pas.
1.If you pedal it, don't use throttle, pedal faster, hub motor wheel run faster.
2.If you twist throttle, don't pedal.Twsit more, hub motor wheel faster.
3.If you twist throttle and pedal together, only one decide speed.

When you ride on the road or up hills, most of time use throttle, don't need to pedal. Sure, if you need to do exercise. Please pedal more.
Bike conversion kit, hub motor, electric bike battery supplier: Leaf Motor Technology Co., Ltd
Website: https://www.leafmotor.com/