Category Archives: BLDC motor - Page 2

Question about 26 inch 36v 750w rear hub motor – bike conversion kit

Posted by on March 31, 2025 No comments

Question about 26 inch 36v 750w rear hub motor bike conversion kit
1. Is the 750 watt hub motor good bike conversion kit for hill climbing? If not what would you recommend?
2. Is the electric bike motor controller current limit set to keep from burning out the hub motor when loaded?
3. I see the hub motor spec sheet is quite old 2013. Is there an up to date one?
4. What is the full old current of the motor at rated N-M load or torque?
5. Any service places for your parts in the US?
6. What size electric bike battery is recommended for your motor and controller? 36v 15ah?

1.We can make hub motor with low speed,will good for hill up.
2.Hub motor controller max 26A,so that electric bike motor max 26A
3,4.Only tell us max speed,we can customize motor…lower speed,stronger torque
5.no service place now
6.recommend 36v 15ah or more ah

Yes, I would like a lower rpm hub motor for hill up if the cost of the bike conversion kit does not change. Maybe 25 mile hour max speed flat ground or about 311 RPM. What would you recommend? What do you have that is close to that?
I need to order shortly to not miss the special on shipping that is coming to an end on Dec 28th.

Yes.We have.
When you order,only leave message: 25mph or about 311 RPM.
Then we can make this hub motor as your message.

Would it be possible to get the hub motor data for this different motor like you have on your other motors? I really like that data as I can see what the electric bike motor is capable of.

I don’t understand this phrase “Mechanical brake: Default Disk or V (If need to install drum brake,please tell us in advance)

I have not heard of drum brakes on a bicycle. I don’t have disk brakes right now but would prefer the motor be capable of adding that even though I have V brakes on the bike right now. So what should I ask for?

I forgot to add that I don’t want a geared 26 inch electric bike motor wheel. the gears are plastic and won’t last long on the hills. I hope that does not cause a problem.

question about 18 inch rear hub motor

Posted by on March 31, 2025 No comments

Regarding your product 18 inch rear dc hub motor for electric scooter Model:HBL-18″R 36V 750W / 48V 1000W
Is says in product details that “This rear hub motor can be mounted disk brake that is fit for standard 135mm frame fork”
My electric scooter motor fork size is measured to be around 177mm, please see attached picture. Can this hub motor be mounted on to my frame, or is the size incorrect?

This kind of 18 inch hub motor isn’t fit for you.
Our other Motorcycle motor or snow fat bike motor are fit for your the spacing of 177mm fork.
Please tell us your tire size.(There is some words on tire)
Then we will check if have hub motor fit for you.

My current electric scooter motor hub wheel fits a tire size of 18″ by 2.5″ (or 3″)
My battery is currently 48v and the bike motor controller outputs about 22-23 amps max. I’m trying to find a 1000 watt hub motor that can potentially reach a speed of 42-50 km/h if possible.

I am interested in buying your electric hub motor.
Here is a picture below of my current disk brakes- will these be able to fit on your hub motor?
Also what would the cost be for just the hub motor? I don’t need all the extra accessories or controller included with the conversion kit.

12 inch 48v hub motor for electric scooter

Posted by on March 23, 2025 No comments

We are interested in your 12 inch hub motor kit.
What is the max speed available for this 12 inch electric scooter motor. I can use a low speed hub motor on the back and a high speed motor on the front to compensate for the torque at low speeds.

If last time faster speed hub motor is okay.We can make this electric scooter motor to be faster.（about 20 – 30% faster)

I recently put in an order for two rear hub motors similar to what I have ordered in the past.

Can you make the hub motor fit a standard front fork?

Yes,if not install disk brake on this front motor.
We can make it with the same covers.And hub motor will in the center.
But it will takes about 7 days to customize shaft.
It’s fit for standard 100mm front fork. (90mm fork is also okay)

This front 12 inch hub motor only use V-braking system.
We should check if has correct shaft for this motor in stock.If no,it takes about 7 days to customize this shaft.

Yes,we have 48V 18A controller with LCD for this electric scooter motor. (We don’t have LCD with controller)

Please confirm that the following will be applied to the order.
On center with no disc brake
Please make highest speed – 20 MPH speed using 48 Volt electric bike battery.

Please make sure below 1 & 2
1. the same to past order. It’s rear hub motor. Two side covers are the same with screw thread for spokes & flange — (in the center)
2. would you faster than past ?

I am looking to order more hub motors and would like get updated pricing.
Do you still have the information from past orders?

Yes. We still have 12 inch hub motor.
But we found your order is different from standard motor.
Could you take a picture with your 12 inch motor, front or rear ?
What max speed on 36v or 48v?

Purchase electric bike motor for Supermarche Ebike

Posted by on March 23, 2025 No comments

I a planning to buy a yuba supermarche here in spain.. It costs 2500 euros.. but with the e-bike system goes up to 5800 total!
How can it be possible that I see one electric bike motor in your website so strong and so cheap compared?

If you can help me with the best setup for my needs I will buy electric bike motor from you:

I would like to be able to ride to the town with stores and buy stuff and come back.The town is 16 km far away going down.. my place is at 250 altitude and the town is at 100 altitude,so i will be going down to the store empty and going back with all the stuff.
I don’t want to feel that i can’t use the bike to its maximum.. so I want a good electric bike motor.
(even dual electric bike motors if possible) and good battery.
So i don’t have to worry about not being able to bring whatever I want to bring.. considering the max 150kg of the electric bike.

We recommend our 48v 1500w electric bike motors with 48v 20ah lithium battery.
About the electric bike motor speed,we can make it with low speed & large torque.

How Long I could ride with that and how fast? could be possible adding another electric bike motor to improve speed at certain moments without loosing torque? How much Would it cost me these 2 options?

About 40km per charge.One 75kg rider ride it last 40km per charge.I mean one 50Kg rider carrying 75Kg of stuff.

Problem with PAS

Posted by on March 23, 2025 No comments

The reason I did not use your PAS was.I don’t have the tool to remove the crank arm. This one I used installs with out removing the crank arm. Yours is a small ring and would be hard to get the sensor close to the magnet disk. The aluminum ring would not fit my crank anyway, too large. My bike is a 1980 vintage Schwinn.

I am a retired electrical engineer,so I took some pictures for you on an oscilloscpe and meter I own. The signal makes it to the controller because I made the connections at the controller connector.

Image 281 shows that there is 4.2 volts on the red and black wire, which is about right. Image 289 shows the PAS sensor and pickup for it mounted on the bike. The distance between the magnets and the pickup is not critical as I tried several different distances. Image 287 is a picture of the signal making it to the controller as the crank is turned. The upper trace is the 4.2 volts on the red and black wire. The lower trace is the signal to the controller.

I notice that the signal is relatively low only 1/2 volt tall.

I solved the problem. I tried your sensor with the magnet wheel already on my bike. Hub motor works as it should. The pick up with the LED does not put out a strong enough signal for the controller. Yours does, as long as it is close to the magnets. The hub motor are controller are good. Thanks for the help.

The oscilloscope waveform was the only way to tell what was bad. Your waveform goes from and to + voltage as it should .

What does the tool look like for the spokes? The hub motor wheel is a little out of round. Some of the spokes are not seated in their hole on the hub motor so that may be the issue.

question about BLW-20B 20 inch electric hub motor

Posted by on March 23, 2025 No comments

Your E-bike company may just be what I’ve been looking for a while now, though I have a least another set of questions before I attempt to make a purchase to ship over.

I am working on spec-ing out some parts for an electric-vehicle project. I am hoping to build it soon, but I need some information about the hub motor model:BLW-20B. Please see my questions below:
The power rating on the electric bike motor says 1500~5000W. Does this mean there is a range of options I can specify? Does this mean this hub motor will function on this whole spectrum and my electric bike motor controller will determine what the actual power load is?

Is there a product manual for this piece of equipment?
The electric bike batteries I am looking at are rated for a 3000W hub motor. Will these be sufficient?
I am looking for a recommendation on the hub motor controller for this electric bike motor. Could you recommend a part?

We can make this 20 inch hub motor to be 48V 1500W, 48V 2000W, 48V 2500W.
Also,this electric bike motor can work at 60V,72V hub motor controller & electric bike battery… If works at 72V, it can reach 5000W

We have this programmable hub motor controller that can fit for this electric bike motor.(This hub motor controller can work 40V ~ 100V)

48V 1000W rear spoke hub motor – electric bike motor

Posted by on March 22, 2025 No comments

BRAND NEW LEAF BIKE 2025 Version Black Lightning Brushless, Gearless 48v 1000w hub motor !
New powerful and efficient Gearless spoke hub motor custom made with higher grade laminations, wider magnet stack, high speed bearings, Honey well hall sensors, more copper fill, and all out higher performance. We went through all the stops to make this motor on the market.

This 48v 1000w hub motor has the more acceleration at low end, better mid range, and more top end. Also offer this wheel professionally laced into our double wall aluminum rims with 12g spokes. Message us for details. 20″, 24″, 26″, 27.5″, 700c, 28″ & 29″ sizes are available.

Detail:
Motor type: brushless gearless dc motor
Voltage: 48V
Power: 1000W
Max efficiency: 90.5%
RPM: 731
Mechanical brake: Disk or V
Cable location: shaft end , Left side
Cable length:110cm / 43″
Install: spacing of 135mm fork
Noise: < 60 db
Surface: Black painted
Net weight: 6.76 kg / 14.87 lbs
Gross weight: 7.36 kg ( after packing )

Package Content:
1 x Newest version 48V 1000W rear spoke hub motor – #LBM481KRN
Package Size: 25cm L x 25cm W x 25cm H
Package Type: Cardboard Box

Question about 16 inch electric hub motor kit

Posted by on March 20, 2025 Comments Off on Question about 16 inch electric hub motor kit

Q:I thank you very much for UPS tracking number. The parcel should be delivered to me these days. Perfect.

Anyhow – I have one question regarding capable Li-Ion-battery pack for “16 inch, 36 V, 250 W front hub motor – electric bike kit, Item No. LBCK1636250F” which you shipped to me.
I have already one Li Ion-Battery pack; 36 V, 504 W, 14 Ah. Is that Li-Ion-Battery pack suitable for using with E-Motor I ordered from you?

A: Just connect your battery to our controller, it works.

Q: You shipped to me in Oct. 2018 “16 inch, 36 V, 250 W front hub motor-electric bike kit, Item No. LBCK1636250F”.
Today first, after buy of kick bike scooter (not pedelec), I install complete kit on my kick bike scooter and it works not. Display works normally (battery indicator full) but it is no E-Motor Watt-indication and no E-Motor reaction after switch on gas-accelerator (speed adjustment not 0 but 1 till 5).
After check of all delivered Parts from your Company and received Datasheet, I discovered some discrepancies:

1. Which voltage has E-Hub Motor, 36 V or 24 V ? (See attachment Page 2/6 and Page 3/6 as well as Page 4/6 with Photo1)
Remark: Delivered E-Motor has no technical dates described on the motor alone.
2. “Cruise button (red/green as shown on the Page 4/6 its other one; See Photo 2)
3. Delivered controller has another dimension as shown on page 4/6; See Photo 3)
4. Which are correct installations codes to be installed for P1 till P5 and C1 till C14?

Awaiting your response asap of the above questions and your statement above delivered kit. Thanks in advance.

A: controller works with 36v battery (min 30v to max 42v)

Please check if there is “-O-“ on the middle/ top of screen.. If have, the system is braking… please disconnect brake lever’s plug or make brake lever’s ring be back. Then motor works.

Please check the blue wire of three button switch if cut off. If cut off blue wire, that’s okay.. If no blue wire cut off, must push the yellow button the other side, motor works. (The yellow button on your picture that works backward status. This motor Not support backward status. So not work)

Three-phase asynchronous hub motor controller start-up

Posted by on March 20, 2025 Comments Off on Three-phase asynchronous hub motor controller start-up

Three-phase asynchronous hub motor controller start-up
(1) direct start
Start-slip rate of 1, induced electromotive force in a large rotor, the rotor currents are also high. When hub motor controller starts at rated voltage, known as the direct start, direct start of the current is about 5-7 times the rated current. In general, the rated capacity of 7.5kw to small asynchronous hub motor controller can be directly started.
Starting control circuit used direct electrical appliances including combination switch, button, contactor relays, thermal relays and fuses. To master their individual characteristics, control of both the fuse fuse rated current calculations.
Direct-start control circuit: control of its control principle.
(2) squirrel cage induction hub motor controller for reduced voltage starting.
Master star – start angle and step-down autotransformer starter works
(3) wound three-phase asynchronous hub motor controller start-up
General understanding.

20 inch front wheel hub motor for cargo bike

Posted by on March 15, 2025 Comments Off on 20 inch front wheel hub motor for cargo bike

Q:I am interested to learn more about the 20 inch 48V 1000W electric bike kit – front casted hub motor wheel
Item ID #LBCK20481000FM
Main Features:
Hub: Aluminum casted ( tire: 20 × 21/4 or 21/2″ )
Engine: Bldc hub motor
Voltage: 48V
Power: 1000W
Efficiency: 905%
Max speed: 707 kmh — 433mph Default (Optional other speed: 35mph or 25mph,15mph)
Mechanical brake: Disk or V
Cable location: shaft end , LEFT
Cable length:160cm / 63″
Install: spacing of 100mm fork
Noise: < 60 db Surface: Black painted Driver: brushless controller MOSFET: 12 PCS With LCD: YES Rated Voltage: DC 48 Volts Min Voltage: DC 40 ± 05 V Rated power: 1000 Watts Casing material: aluminium Maximum Current: 26 A ± 1 Amps Thermal: aluminum shell and the substrate 3 phase 120° brushless motor Operating Conditions: -20~45 °C Waterproof design Size: 171 mm L × 82 mm W × 42 mm H Updated LCD , More Function: * Cruise * Forward & Rackward (Optional) * Regen brake * Kmh & mph (Optional) * Set Max speed ( 0 ~ 72 kmh / 45 mph ) * Pedal assist ( 1 - 5 ) * Temperature * Motor power * Timer * Battery gauge * I am looking to replace the rear wheel hub motor on my cargo bike (see picture) was on the bike when I bought it. I have trouble keeping the wheel true and recently have a lot of broken spokes and a cracked rim. It is also hard to pedal because of motor drag and I want to be able to ride it without the power on or if the battery went flat. I can’t do that now. I am interested to know a few things 1. What is the weight of the front wheel hub motor? 2. You can see my bike has the front wheel a much further distance from the handlebars.Can you supply this hub motor kit with longer wires - or extension wires with appropriate connectors - so the wires can be routed under the cargo area and up to handlebars? 3. Is the voltage programmable with your system? (My existing motor can be)(I have a big battery pack) 4. I have hydraulic disc brakes on my bike and want to be sure this is compatible with disc rotors A: 1. The net weight of this motor is 7.25kg 2. Yes. When you order on our site,just leave message: cable length, then we can make. 3. The voltage isn’t programmable. This 48v controller works with 48v or 52v battery. (from min 40v to max 60v) 4. There are six screw on left cover for install disk. The dia. is 44mm (between two screw holes)