Tag Archives: electric-bike-motor

Electric bike kits for e-bikes

Posted by on December 7, 2022 Comments Off on Electric bike kits for e-bikes

Convert original bike to e-bike should purchase one set of electric bike kit.In market,there are two kinds of electric bike kits.One is electric motor wheel with accessories,the other is bldc motor with chain drive.The second one is hard to convert,so most of people like the first type of e bike kit.

About first hub motor wheel kit,European like 250w electric bike kits,but 750w and 1000w e bike kits more popular in North America.

Leafmotor has below electric bike kits:
1.16″ 18″ 20″ 24″ 26″ 700c 28″ 24V 250W electric bike motor kit
2.16″ 18″ 20″ 24″ 26″ 700c 28″ 36V 250W electric bike motor kit;
3.14″ 16″ 18″ 20″ 24″ 26″ 700c 28″ 36V 500W electric bike motor kit;
4.14″ 16″ 18″ 20″ 24″ 26″ 700c 28″ 36V 750W electric bike motor kit;
5.14″ 16″ 18″ 20″ 24″ 26″ 700c 28″ 48V 1000W electric bike motor kit;

Now we talk about three type classic e bike kits:

1.20″ 36V 750W rear electric bike kit
Model: 601 Kit-1 bike conversion kit
①.20″ 36V 750W rear electric bike motor
②.36V brushless motor controller working with LCD ( New )
③.LCD (Display speed,voltage,mileage…)
④.Twist or thumb throttle with battery guage — optional
⑤.Brake lever
⑥.Three-button ON/OFF Switches
⑦.PAS (Pedal Assist) — optional
Net Weight: 7.86kg — Gross weight: 9.48kg (after packing)
Install: It’s fit for standard 135mm rear frame fork.
Used for: Convert your original bike to electric bike.

2.20″ 48V 1000W rear electric bike kit
Model: 601 Kit-1 bike conversion kit
①.20″ 48V 1000W rear electric bike motor
②.48V brushless motor controller working with LCD ( New )
③.LCD (Display speed,voltage,mileage…)
④.Twist or thumb throttle with battery gauge — optional
⑤.Brake lever
⑥.Three-button ON/OFF Switches
⑦.PAS (Pedal Assist) — optional
Net Weight: 7.98kg — Gross weight: 9.68kg (after packing)
Install: It’s fit for standard 135mm rear frame fork.
Used for: Convert your original bike to electric bike.

3.28″ 36V 250W rear electric bike kit
Model: 701 Kit-1 bike conversion kit
①.28″ 36V 250W rear electric bike motor
②.36V brushless motor controller working with LCD ( New )
③.LCD (Display speed,voltage,mileage…)
④.Twist or thumb throttle with battery gauge — optional
⑤.Brake lever
⑥.There-button ON/OFF Switches
⑦.PAS (Pedal Assist) — optional
Net Weight: 5.72kg — Gross weight: 7.35kg (after packing)
Install: It’s fit for standard 135mm rear frame fork.
Used for: Convert your original bike to electric bike.

want to order electric bike kit

Posted by on November 21, 2022 Comments Off on want to order electric bike kit

Q:
Want to order 1 set of electric bike kit
Detail:
1. brushless hub motor with 36V 500W,no matter if front or rear configuration
2 .suited 16″ wheel (rim+tire)
3. matching controller – capable of reverse direction
some questions:
1. does the motor/controller can effectively brake the wheel or need outer brakes?
2. are the system is ready for adding disk-brake in the future (or even v-brake), if so, do you supply brakes (disk+clipper)

Answer 1:
1.16″ hub motor doesn’t include tyre;
2.Motor control support backward;
3.Brake lever can cut off power and you need outer V-brake or disk brake.
Rear motor can be installed disk brake now,but front motor only use V-brake.

Answer 2:
We suggest you order:16″ 36V 500W rear brushless hub motor kit
The product list about this kit:
1.1 pcs of 16″ 36V 500W or 36V 750W rear hub motor(casted hub+16″× 2 1/4″ tyre)
2.1 pcs of 36V 500W or 36V 750W brushless controller with LCD display speed,mileage…
3.1 pcs of 36V twist throttle with battery gauge
4.1 pcs of brake lever
5.1 pcs of three-button ON/OFF switch that used to control front & rear lights,horn…
6.1 pcs of adapter disk tool that can be mounted on motor and used to install disk
7.1 pcs of φ140mm disk+adapter
The answers for other questions:
1.This LCD controller support reverse;
2.Pull brake lever,it will cut off power,but you still need to install V-brake or disk brake.We suggest disk brake;
3.Our rear hub motor can install disk brake now,but front motor only use V-brake;
4.About motor speed,we can customize as your need;
5.This rear motor is fit for 135mm frame fork.
If have more questions,please free to ask.Thanks.

Answer 3:
This hub motor is more powerful,very nice and casted hub is much better than spoke wheel.Don’t worry spokes will be loose.

Answer 4:
New 36V 500W electric bike motor controller works with LCD.
It’s cool.

The best answer:the second answer

electric bike motor parts

Posted by on November 21, 2022 Comments Off on electric bike motor parts

Q:
we`re building a 4 WD vehicle so we need only the following:
1.1 pcs of 16″ 36V 500W or 36V 750W rear hub motor(casted hub+16″× 2 1/4″ tyre)
2.1 pcs of 36V 500W or 36V 750W brushless controller without the LCD
6.1 pcs of adapter disk tool that can be mounted on motor and used to install disk
7.1 pcs of φ140mm disk+adapter – what is it?,does it the disk braker?
motor speed – minimum value (for maximum speed) 20km/h (we don’t care if it will be more)
do you support in any we a super-controller to support all 4 motors/controllers?
Answer 1:
That’s disk+clipper.
Answer 2:
There are two types of disk for e-bike.One is dia.=φ140mm,the other is φ160mm.
Generally 140 mm disk is fit for rear wheel and 160mm is fit for front wheel.
Answer 3:
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,we called them classic electric bike motors.

Compare to use a chain drive system,these days convert bicycle with a new motorized wheel is much easier.Remove your front or rear wheel,use this hub motor wheel to replace,done it in 5 minutes.

140mm disk can installed on rear motor and 160mm for front motor.
Now all of our rear motors and hbm-011 front electric bike motor can mounted on disk,but hbm-front gearless motor and hbl-front motor can’t installed disk.
The thickness of these 140mm and 160mm is 2mm.
See more pictures:
Picture 1:The thickness of disk

What’s the difference between 36V 500W,36V 750W and 48V 1000W hub motors

Posted by on May 11, 2022 Comments Off on What’s the difference between 36V 500W,36V 750W and 48V 1000W hub motors

Q:What’s the difference between 36V 500W,36V 750W and 48V 1000W hub motors

A:36V 500W,36V 750W and 48V 1000W hub motors are all used for electric bikes,also called electric bike motors.They have the same figuration.These three motors are all made of the same hub,covers,
axis,bearings,hall sensor.So they look the same,but they have different magnet and rotor-winding.

36V 750W and 48V 1000W are the same hub motors,just work at different voltage,has different watts.

But for 36V 500W × 36V 750W（48V 1000W）
The difference between them is that gauge of the coil wires,turns number of the coils and height of magnet.

The height of 36V 500W hub motor’s magenet is 24mm,but 750W hub motor reach 30mm.Picture enclosed.

In market,36V 500W is easy to find it,but difficult to find real 36V 750W hub motors.

In China,36V 500W(48V 600W) motors are very popular and used for electric bikes,these motors seem to ours,but No.The height of our magnet is 6mm more than as usual,reach 750w or 1000w.North America like them,more like high speed motors,we can customize motor speed as customers’ actual need.

Now 26″ 36V 750W bike wheel reaches 20m/h and the speed of 48V 1000W is 27m/h.It’s standard speed.

replace hall sensor for 750w hub motor

Posted by on May 11, 2022 Comments Off on replace hall sensor for 750w hub motor

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 bike 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.

help me purchase 250w electric bike kit

Posted by on January 29, 2022 Comments Off on help me purchase 250w electric bike kit

Q:
I want to purchase 1 set of 250w electric bike kit,but found there are two type 250w hub motors showed on leafmotor’s internet shop.
One motor is 250w gearless hub motor,the other is 250w geared hub motor.
Help…What’s the difference between them?Which e-bike kit should I order?

Answer 1:
Order 250w geared hub motor,it’s more popular these days.

Answer 2:
250w gearless and geared hub motors are the same brushless motors.They are both made up of rotor winding,halls sensor, magnet, hub…
The difference between them is with gears / without gears.
250W geared hub motor is a little more powerful than gearless hub motor,but there is some noise from gears.

Answer 3:
We offer 36V/250W — 16″ 18″ 20″ 24″ 26″ 700c 28″ e bike kits.
For example:28″ 36V 250W Rear wheel electric bike kit

Generally 28″ electric bike conversion kit is used to convert 28″ e-bike.
It includes below products:
1.1 set of 28″ 36V 250W rear wheel without tyre
2.1 set of 36V 250W controller with LCD display
3.1 set of 36V twist throttle or thumb throttle (optional)
4.1 set of brake levers
5.1 set of three button ON/OFF switch
6.1 set of disk-adapter plate

The motor and controller are the most important products among this bike kit.
1.Motor:36V 250W brushless geared hub motor,28″ wheel default speed:16.2 miles/hour.BTW,we can customize motor speed as your actual need.
2.Controller:36V 250W brushless motor controller

Working with LCD

Special Features:
1.EABS System
2.1 + 1 Assistance
3.Idle Running Protection
4.Dynamic Motor Lock System
5.Motor Shaft Lock Protection
6.Power Tube Protection
7.Cruise Speed Control
8.Self-check Protection
9.Speed Limit
10.Remote Control Anti-theft

High power motors

Posted by on January 29, 2022 Comments Off on High power motors

I have tested the new wheels and the performance from them is perfect.

I have tried them in my bike that has the 24″ 48v1000w rear wheel that I bought from leafmotor in July 2010. This bike has 48v Lifepo4 battery and max speed is 36km/h with the July 2010 motor.
When I put the new 26″ 48v1000w wheel in this bike max speed is 50 km/h.
Then I tried the 26″ wheel in another bike also with another 48v Lifepo4 battery and the performance is also good.
I am interested to find the answer. I dis-assembled the new 26″ hub and the old July 2010 24″ hub and swapped the axle and windings from each motor, re-assembled them and tested again. The 26″ wheel now has 39km/h max speed and the old 24″ is 46km/h.

This tells us that the axle windings in each of the new wheels have much higher power capability than the older wheel.

Actually old hub motor and new hub are the same cost.
Everything is no changed,the same hub,the same rotor,the same magnet,except coil wires.
Change the gauge of the coil wires and/or the turns number of the coils can adjust motor speed,power etc.
Old hub motor is standard motor,it’s fit for US transportation law.26″ 36V 750W, the speed is 20 miles/hour.
If need extra speed,power etc..We can customize as your need.

I am also satisfactory with my bicycle.
18″ 48V 1000W hub motor speed:17 miles/hour

High power performance motor doesn’t depend on speed or power,but customers’ need,law allowed.

My 48V 15-MOS-FET brushless controller drive 700c 48V 1000W electric bike motor,has enough power to climb hill.

This is a reliable hub motor,never meet any problem in 1 year.

I ordered the same motor(hbl 36V 750W hub motor) last month and repeat testing it,perfect.

Not surprising.This electric motor is ripe product and used for e-bikes widely in China.Anywhere you can find this kind of hub motor in China.
You did make a good choice and ordered ripe motor.It’s better than internal control motor.That kind the controller is built inside the motor,because of high temp,easy to break controller.If the internal controller is broken,all system is dead,should replace controller and motor together.

After repaired this hub motor by myself as instructions shown on this forum.I am much better to like this motor,like leafmotor’s forum.

Received my 700c 48V 1000W electric bike kit two weeks ago and took 1 day to done installation.Ride it per day,be satisfying with motor powerful

This is brushless gearless high speed motor, compare to brushless geared motor.The second one has more powerful,but with a little gear noise.Now 750w and 1000w brushless geared hub motors can’t find in market.Most of geared motors are 250w.

We always think faster,better.But because of local law for ebike so that we can’t ride high power motor bike.
I received 36V 750W hub motor,then make a label ” 36V 500W” on it.

From you test,you think faster speed motor is more powerful,actually you are wrong.
Estimate motor performance:faster speed,less powerful,slower,more powerful.

About motor speed,power,I think leafmotor can customize it according as customers’ actual need.

electric bike motor

Posted by on January 27, 2022 Comments Off on electric bike motor

Hub motor,bldc motor,brushless motor,gasoline motor..Any kind of motor,used for electric bike,we call bike motor.

In North America and Europe,gasoline motor is still used for electric bike.Picture enclosed.It can’t received by most of people.

Electric gasoline motor bike,call it an electric bike?But it makes pollution.Call it motorcycle?But it more dangerous than motorcycle, they both have high speed.But the tyre of gasoline motor bike is the same to common electric bike.

Be tired for one week work,please be far from pollution – choose electric motor bike.

Our electric bike motor:
1.14″ 16″ 18″ 36V 750W & 48V 1000W front & rear casting hub motor;
2.20″ 24″ 26″ 700c 28″ 36V 750W & 48V 1000W front & rear spoke hub motor;
3.12″ 16″ 18″ 36V 250W & 24V 250W front & rear casting hub motor;
2.20″ 24″ 26″ 700c 28″ 36V 250W & 24V 250W front & rear spoke hub motor;
Speed from 5~30miles.

Welcome to customise.

Convert electric bike motor kit isn’t too difficult.You need below tools:
1.1 pcs of open-end wrench
2.1 pcs of phillips screwdriver
3.1 pcs of voltmeter
4.some zip-ties

How to install electric bike kit?
1.Make your bike upside down;
2.Use open-end wrench to loose both nuts and remove the front or rear wheel;
3.Find out the direction of motor runs;
4.Fix motorized wheel on your bike;
5.Use open-end wrench to tight both nuts;
6.Connect wires;
7.Make your wheel in the air,power on battery and test;
8.If it can’ work.Please use volt-meter to measure.

Some noise from rim or hub

Posted by on January 27, 2022 Comments Off on Some noise from rim or hub

Q:After running for a couple of weeks.Sometime you can find there is some noise from bicycle rim while you are riding.

A:Now you should check spoke nipple.If can’t find 36 pcs nipple on spokes.There must be some nipples inside the rim,if not,maybe some aluminium impurity.

Solve:Disconnect your hub motor wheel from your e-bike,remove the tyre,you will find there is a red gasket round the rim,also take it off.Then make the valve hole down,shake rim,the impurity will be out of the rim.Re-install them.

Solve this noisy problem.

Advice: We suggest after running several days,had better to tight 36 pcs nipples.

Q:Can you help me?I am very disappointment.
I ordered a motor from the other supplier,the HBS36F — Front Motor.Sent several emails,haven’t gotten any reply in 2 weeks.

I have just tested it and it makes a noise once every turn and it gets stuck (or at least much more friction) at the same angle. It feels like it could be some magnetic effect but more likely it´s some mechanical contact that´s disturbing the rotation. Have you heard of this problem before or is the electric bike motor constructed to act like this? Could we do something to fix it, like open it up and remove whatever that´s making the noise?

A:The noise comes from some metal impurity on the magnet.

Solve: Disconnect hub and remove it

electric bike hub motor

Posted by on January 26, 2022 Comments Off on electric bike hub motor

Hub motor is an electric bike motor that is an important part for electric bike.A common bicycle with a motorized wheel(hub motor) is an electric bicycle.

1.According as your size of rim,it has 6″ 8″ 10″ 12″ 14″ 16″ 18″ casting hub motors and 20″ 24″ 26″ 700c and 28″ electric bike hub motors
From 6″ to 18″,the rims are much smaller,so always casting hub.And used for electric scooters,electric tricycles,sometimes also used for folding electric bicycles.
From 20″ to 28″,because of rims are much bigger,always use spokes to fit.And used for electric bicycles.

2.According as whether has “brush”,it has two type:brushless hub motor and brushed hub motor
Brushless hub motor is make up of aluminium hub,aluminium covers,axis,bearings,copper winding, rotor,hall sensor..
Brushed hub motor is make up of aluminium hub,aluminium covers,axis,bearings,gear box(several gears inside),printed copper slice,two pcs of brushes..

The brushless hub motor’s principle:electromagnetic fields are supplied to the stationary copper windings of the motor. The hub(outer part of the motor)follows, turning the attached wheel.

The brushed hub motor’s principle:energy is transferred by brushes contacting the rotating shaft of the motor that drive gears,then drive hub.

Compare them:
Noise Efficiency Torque Use-life
1.brushless hub motor: √ >78% √ >3-Year
2.brushed hub motor: a little noise <70% a little larger replace "brush" in 2 year With the advantage of brushless hub motor,it used for electric bike widely. According as use,it also called electric bike motor. According as current,it has ac and dc hub motor.But nearly all of hub motors are direct current(DC).