Tag Archives: hub motor - Page 9

18 inch gearless brushless hub motor for electric bike

Posted by on December 30, 2021 Comments Off on 18 inch gearless brushless hub motor for electric bike

I am interested in the 18 inch rear gearless bldc hub motor provided by leaf bike company and I had a few questions about the hub motor.

1) What is the rated torque?
2) What is the maximum torque?
3) How many poles are there in this hub motor?
4) Does it contain any brakes? If so, what type? (Disc/Drum/V-brake)
5) Does it contain hall sensors? If so, How many and what is their description?
6) Most importantly, is this motor a brushless dc motor (BLDC) or a permanent magnet synchronous motor(PMSM)? This greatly affects my choice, as both types are sometimes very close to each other, so I needed verification on what type it was.
7) Does it have a waterproof gradient?
8) Dimensions: I had an issue with the dimensions listed in the description compared to dimensions in the drawing for the motor on Leaf Motor site. I am actually looking for a motor that is around 16 inches, however, I chose the 18 inches because the image for the 18 inches shows the diameter being 372 mm which is equal to around 14.6 inches, which isn’t 16 inches but is very close. The diameter of the electric bike motor is crucial for my wheel choices and so clarifying what the actual diameter of this motor would be very helpful, I can’t risk not being sure of the dimensions as I am currently designing the vehicle and need to be very accurate, and that’s why a professional mechanic is needed specialized in this kind of vehicle, because sometimes people think a person who’s good with cars will be good at bikes too.
9)Does this motor support regenerative braking?
10) What is the back EMF of this motor?
Finally, I would like to apologize if these are too many questions but I am in need of the maximum clarifications I can get to be as precise, so any information you can provide will help me on my quest to find the best. I will be forever grateful for your help.

A:
Please click our new site.
https://www.leafbike.com/products/e-scooter-hub-motor/18-inch-electric-motor/
There is more drawing & performance.

* This 18 inch is fit for 18 * 2.125 or 2.5 tire.
The dia. of this 18 inch is 372mm, it’s fit for 18 inch bike tire.

* 46 pcs magnet, with 3 pcs hall sensor… It’s brushless motor.

I want to purchase one of leaf hub motor kits

Posted by on December 30, 2021 Comments Off on I want to purchase one of leaf hub motor kits

I have done a lot of research and leaf motor and services keep coming up as a fine choice.

My original choice was the 3000 watt hub motor but I have already spent a lot of money on the electric bike and so that will have to come later but from what I have read this one may do just fine.

I currently run a 6T hub motor with a 48V 20A battery pack in a GT bike frame I build a few years ago and really like the way the hub motor runs but would like more speed so I ordered a new Raptor 76r frame and plan on using leaf motor in that setup so my questions are as follows:

The frame has 150mm dropouts in the rear.
From the previous build I already have a premium 48V 20A rated up to 50A output lithium battery pack that I paid 900.00 to have built so I will have to base the new hub motor and brushless controller around this for now.

AT first I was just going to get the 26 inch 1500 watt 4T leaf hub motor kit but then read it was better to have these in the 17” or 19” motor rim for this frame

Do you offer the hub motor with the 150mm axle?

I want this to run at close 40mph / 60kph the 4T should do that but I also would like the upgraded controller over the standard. What is the best motor controller you offer with the 1500 watt motor?

I also noticed you had a 2000 watt motor in the motorcycle section. Is this hub motor available for the bicycle kit and what are the specs on it?

What controller does the 2000 watt motor use?

I am going to buy at least 2 of these. One in the next week +a bare spare and another in a month or so and then probably 2 or 3 after that. I have several friends that want a bike like mine so after I get mine done will be building theirs as well.

At the least I will order the standard 1500 watt hub motor kit in either the 26 or 24 or 20 rim and then I will just pick up a spare bare hub motor and lace the rim myself.

48V,1000W, 1500W rear hub motor for 20 inch or 24, 26, 27.5, 700c 28, 29inch

Posted by on December 30, 2021 Comments Off on 48V,1000W, 1500W rear hub motor for 20 inch or 24, 26, 27.5, 700c 28, 29inch

Do you have a more detailed drawing for dimensions of the 48V 1000W,1500W rear hub motor? I am particularly interested in the dimension I marked “A” so I can be sure the brake rotor disc will fit correctly.

The drawing from your web site shows the left side of the hub motor on the right side of the drawing. Also, in the video the hub motor is installed backwards and the rear derailleur is just hanging off the bike on the cable. Very confusing, but eventually I understood that the person who installed your hub motor on the bike put the motor in backwards, with the wire coming out the right side even though your specifications say the wire comes out the left side.

I suggest that you make all of your drawings, pictures, and video consistent left to right, because they are presently mixed up.

Here is an example of a drawing that is correct left versus right and has all the dimensions a bicycle builder needs to be confident the motor will fit the bicycle.

If I order with a free hub to use a cassette is the free hub body replaceable?

Does it look something like this?

Do you have a part number or a link for the replacement free hub and cassette for that motor?

Thank you very much for all the information, I really like this hub motor but I need to make sure it will fit and work well for my bike.

700c 48V 1500W rear hub motor – bike conversion kit

Posted by on December 29, 2021 Comments Off on 700c 48V 1500W rear hub motor – bike conversion kit

Q: 700c 48V 1500W front hub motor – bike conversion kit
Item ID #LBCK700C481500FN

Newest 700c 48V 1500W rear bike motor – conversion kit
Item ID #LBCK700C481500RN
What is the difference between these 2 bike conversion kits?
Can I get them with black spokes?
What is the winding (such as 12T, 8T, 6T, etc)?
Does it come with sprockets (rear cogs, or cassette)? If not, what kind do I order for it?
How much does it cost and how long does it take to ship to California, USA?

A: 1.They are the same motors.
LBCK700C481500FN is fit for 100mm rear dropout. Fit for front fork. Can’t use disk brake. ONLY use V brake on rim.
LBCK700C4815000RN can be installed sprocket on this motor. Fit for 135mm rear dropout. Fit for rear fork. Can install disk brake on rear motor. Also can use V brake on rim.

2. Black spokes ,, okay.. But it takes about 3 days to wait for this black spokes (Please leave message when you order)

3. Default: 5T. But we can make 6T, 8T … (Please leave message when you order)

4. LBCK700C481500FN can’t use sprocket.
LBCK7004815000RN can install sprocket. But Not come it. You can install yours on our hub motor. (Please leave message when you order rear cogs or cassette, then we can make motor as your sprocket. If No message, default: motor with screw thread for cogs

Q: You said:”3. Default: 5T. But we can make 6T, 8T … (Please leave message when you order)”
I have not read about an odd number such as 5T. Is this correct that your default is 5T?
Also, Do you have a right half twist throttle available for this instead of the right full twist?

A: Generally 700c 48V 1500W hub motor,use 5T.
If you leave message: 5T when you order (or send an email to us after paid) – It must 5T.
Yes. We also have other throttle. Please click below site. All throttles are fit for this bike conversion kit LBCK700C481500RN.

Also, leave message: what throttle. We will ship it instead of that full twist.

Motor controller with LCD-003 from Leaf Bike

Posted by on December 29, 2021 Comments Off on Motor controller with LCD-003 from Leaf Bike

48V 1000W-1500W-2000W, 36V 250W-500W-750W, 24V 250W Motor controllers with LCD-003 from Leaf Bike are used to drive 8-9-10-12-13-14-16-17-18-20-22-24-26-27.5-700C-28-29er inch hub motor bike wheels.

How to set max speed?
If you feel 20 inch or 24 inch,26 inch, 700c, 28 inch, 29 inch hub motor kit is too fast,please set it to be low speed.
* Press “sw/middle button” from LCD more than 2 seconds,then LCD will display.
* Press “up & down button” together more than 2 sconds until 72 is flashing ( 72 is kmh, if you hope works 20mph / 32kmh, press “down” to be 32)
* Press “sw/middle” button one time to save,then 24 is flashing.. (24 is hub motor wheel size. Don’t set)
* Press “sw/middle” button one time to save,then kmh or mph is flashing..
* Press “sw/middle” button one time to save,then press “sw/middle” button more than 2 seconds until be back.

Turn throttle,motor will work max speed as your setting.

—————
There is a “ 5 or 4 or 3 or 2 or 1 or 0” on the Left side of LCD.
* Be “0” – throttle & pedal assist NOT work.
* Be “1” – throttle works (If install pedal assist, pedal about 3 circels,then can drive motor to work)
* Be “2” – throttle works (If install pedal assist, pedal about 2.5 circels,then can drive motor to work)
* Be “3” – throttle works (If install pedal assist, pedal about 2 circels,then can drive motor to work)
* Be “4” – throttle works (If install pedal assist, pedal about 1.5 circels,then can drive motor to work)
* Be “5” – throttle works (If install pedal assist, pedal about 1 circels,then can drive motor to work)

If NOT install that pedal assist,ONLY use throttle to drive motor. But Should be 1 or 2 or 3 or 4 or 5.(Be 0,turn off throttle)

——————————–
How to use three button switch?
1.We cut off that blue wire.It’s for reverse. If reconnect this blue wire.
This yellow button be left / middle,29 inch bike motor kit works forward. Be right side,hub motor works bacwkard / reverse…

2.Green button is used to control cruise, while electric bike motor is running,also over some speed,example: over 1/3 max speed,at this time,press green button one time,then loose throttle,LCD display “C”,motor will works the same speed. Re-press this green button one time or press brake lever or turn throttle to max, electric bike motor will stop.

3.Red button be up,regen on. Be down,regen off. This regen is not strong.Only while braking with a little regen.

How to replace winding rotor of hub motor ?

Posted by on December 29, 2021 Comments Off on How to replace winding rotor of hub motor ?

If your hub motor has issue..How to replace winding rotor?
It takes about 10 minutes to replace. Very easy.
Tool: ONLY ONE M4 Inner hexagon spanner
Do it as below / uninstall Disconnect:
1. Disconnect 16 pcs of screw nut from your hub motor (two side) – It takes about 3 minutes to do it.
2. Knock the shaft end (NO cable side) on the ground,then the cover will off from hub – It takes 2 seconds to do it.
3. Two hands hold on hub(Not rim), still knock the shaft end (No cable side) on the ground,then the whole of winding rotor will out of hub.. – It takes 2 seconds to to it.

Do it as below / Install:
1. Put the cover on the hub and put 8 pcs of screw nut on..tight them. – It takes about 2 minutes to do it.
2. Check and make sure no other thing around magnet – It takes 10 seconds to check it.
3. Put the whole of winding rotor into hub – It takes 2 seconds to do it.
4. Put the other 8 pcs of screw nut on – It takes about 2 minutes to do it.

electric bike motor 48v 1000w leaf

Posted by on December 29, 2021 Comments Off on electric bike motor 48v 1000w leaf

Only the electric bike motor. I will not use tire. I will not use rim. I only use 48v 1000w motor.If it works for me I will purchase many of them. (But, yes, I also need the electric motor controller)

Small size is not the only criteria.I seek powerful motor.But the hub motor alone needs to fit in 152mm diameter tube. (no rim needed. It wastes space.)

I have many questions.

I am serious buyer. I don’t make bikes or scooters. I seek your hub motors for use in my equipment, and will buy many of them when I find what works for me.

I realize you don’t have all the information easily available now. But please invest more time in answering my questions more completely:

1. Dimensions of 1000w hub motor alone. (48v-1000watt electric motorcycle motor) Weight of hub motor alone.

2. Data showing torque, energy use, and efficiency of that motor when at 120 to 140 rpm. (projected, if need be)

3. Which electronic controller would be the best, and what is its cost. I can use any voltage. I use grid power, and not use electric bike batteries.

4. Please give me a cost when ordering in quantities of 5, 10, 50, 100, and 200. Also including the cost of controllers as an option would be helpful to me.

I assume they’d be boxed in groups of 5 or more, so please determine what shipping. It would be very good.

If this information is not available through you, please send me the contact information I would be able to use myself, and I will find someone here to translate language so it is easier to communicate. I think you have the hub motors I need, but I need to verify it will work for me.

hub motor selection and rim width.

Posted by on December 29, 2021 Comments Off on hub motor selection and rim width.

I am looking to build an e-bike, starting with the Mongoose Dolomite. 5000W is probably too much, I see you offer 1500W hub motor kits, but I did not see any information about 4inch wheels for the fat tire bikes.
Do you have a 26 inch bike motor kit for the 26 inch fat tire bikes, rear drive, 1500W or more?
With a 9 speed cassette is there enough room for the hub motor in a 135mm drop out ?
I see now that my Shimano 9 speed rear cassette should be the same width as a Shimano 7 speed. It is the spacing of each gear that is different. However, if I am to purchase your kit, I would need you to supply the 9 speed freewheel because I assume your hub motors use freewheels and not cassettes. Right now my bike is a cassette.

Unless it is possible to supply this bike motor in the kit instead:

I should be able to mount my cassette to this motor. Can we do that instead?

This is no longer for fat tire bike so please ignore the first email about the fat tire kit.

It is for a regular mountain bike so no need to worry about 3 or 4″ tires. I have regular mountain bike tires, 26 x 2″ right now. Once I do the electric bike conversion kit, I may switch to more narrow road tires like 1.5″ or 1.75″ so the regular double wall mountain bike rim is fine.

So I made a new order with the individual parts and I excluded the brakes because I do not need them. However, it came out to be a little more expensive than selecting the kit but, I would like a double walled 26″ rim added to the hub motor please.

Just wondering what type of connectors come on the motor controller? I am ordering my battery and need to know what kind of connectors it has. Do you have any pictures or description?

Sponsorship Hub Motor Controller Opportunity for University Car Team

Posted by on December 29, 2021 Comments Off on Sponsorship Hub Motor Controller Opportunity for University Car Team

My name is philip young and I am reaching out as a representative of Eco Illinois SAE, a student organization at the University. As an organization under the Society of Automotive Engineers (SAE) umbrella, we design and build a car to compete in the Shell Eco-Marathon and SAE Supermileage competitions each year. We attempt to push the boundaries of fuel efficiency and have achieved a school record of 1,137 mpg on gasoline at SAE Supermileage 2016.

Eco Illini SAE is comprised of students from a wide variety of backgrounds. From engineering to business students, the team focuses on providing environmentally conscious transportation solutions. To reach greater heights, the team is seeking to build a new car. The new car will incorporate lessons learned from past cars and be better suited to take advantage of new technologies. We pursue an aggressive vision for the future where the social cost of personal mobility is minimized. To further incorporate sustainable principles in society, we also participate in community outreach events and donate our old cars to other teams in order to encourage interest in sustainable engineering.

However, an undertaking of this size requires a lot of parts, funds, and time. One of our biggest roadblocks so far has been lacking the necessary resources to test and redesign the car for maximum efficiency. We are reaching out to Leaf Bike because of your specialization in electric bike motor and motor controller. Any help at all would be very much appreciated, and we would love to set up a sponsorship partnership with you. Attached to this email is an outline of everything a sponsorship would entail per each level.

Last year’s Shell Eco Marathon competition in Sonoma, California saw 100 teams with over 1,000 participants from high schools and universities across North and South America. It is part of Make the Future California – a four-day public festival of ideas and innovation. Each year our car is featured at the McHenry County College Green Living Expo, Engineering Open House, and various other University related events, with the car being viewed by hundreds to thousands of people. Not only are these events a great way to showcase the progress the car has been making throughout the year, they are also a fantastic opportunity for the team to give back to our sponsors. We also recognize our sponsors in public posts and are looking to start a video series featuring our technical innovations as well as shout outs to our sponsors.

1500watt ebike hub motor question

Posted by on December 29, 2021 Comments Off on 1500watt ebike hub motor question

I am searching for electric hub motors that I might be able to use for my device, far different than a bike.
Your 1500 watt hub motor caught my eye, and I am wondering what the outside hub diameter is?If this might work for me, I’d modify it to work for my situation, so the measurement I am looking for is the outside of the drive hub itself (the hub holding the magnets, magnets located on the inside of the hub) I’d eliminate the shield stuff on each side, to help us get the heat shed better.

Do you manufacture these hub motors, or are they purchased? Are they made in the US?

Our equipment is currently powered with 3-Phase AC motors, but I can get more power for less weight with dc motors. Unfortunately, my target rpm is around 140, probably using near 1000 watts at that speed.BUT,if these motors could come close, I’d want to explore what we might do with them.A perfect diameter for us would be less than 6 inch, but this likely isn’t the case.So, getting one or two in hand will let me contemplate things.

I was able to see the charted details for the motor! I note it is max efficiency at 550 rpm, which is too fast for my equipment.I wish to find a direct drive hub motor with decent efficiency at 120 to 200 rpm.As pointed out, my equipment is for a good purpose, and we have potential for 20,000 units per year, and more, reaching that in 2 to 4 years.

Would they consider making a bike motor running at slow speed (adding more poles)? Or is it possible with a step style bike motor? Because these run 24-7, and are built to run for years at a time. I am seeking to have reasonable life expectancy of the motors to be around 8 to 12 years.This is why I am seeking to have direct drive.This bike motor gets installed in a water-tight container, and operates underwater. Cooling will be provided by direct contact to the underwater container.It is very allowable to have a longer length, but if they can hold the 150 mm diameter as a maximum, the length could be almost 310 mm if this would help. I can go up to a weight of 50 kg, if the controller doesn’t weigh very much.

Thank you for following up on this.I would really like to find a bike motor supplier for us so we can go to a direct drive unit and avoid the use of a gearbox.