Monthly Archives: April 2025 - Page 3

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

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.

28 inch 48V 52V 1500W rear wheel electric hub motor kit

28 inch 48V 52V 1500W rear wheel – electric hub motor kit

More info about this 28 inch hub motor kit

Main Features:
>. Rim: 28 inch double wall Alloy (Rim Fit For: 28 × 1 1/2″ tire)
>. Spoke: 12 gauge / 184mm Length × 36 pcs
>. Default: Black spokes
>. Optional: Silver spokes — Please leave message.

>. Engine: Bldc hub motor
>>. Voltage: 48V / 52V
>>. Power: 1500W
>>. Efficiency: 90.5%
>>. Max speed: 75.0 kmh — 46.6 mph Default (Optional other speed: 35mph or 25mph,15mph…please leave message)
>>. Mechanical brake: Disk or V
>>. Sprocket: Freewheel or Cassette
>>. Cable location: shaft end, LEFT
>>. Cable length:100cm / 40″ — Update “3mm phase wires” & “Newest version hub”
>>. Install: spacing of Min 135mm to Max 155mm fork
>>. Noise: < 60 db >>. Surface: Black painted

>. Driver: brushless controller
>>. MOSFET: 18 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 / 52 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Rated power: 1500 Watts
>>. Casing material: aluminium
>>. Maximum Current: 40 A ± 1 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 155 mm L × 72 mm W × 38 mm H

With LCD, More Function:
* Cruise — Green button Control (While motor is working,press green button one time,it will be “CRUISE” – running as the same speed)
* Reverse — Yellow button Control (“Left side & Mid / forward — “Right side / backward”)
* Kmh / mph
* Throttle speeds ( 0 – 5 ) — “0” is off throttle. “1” is the slowest. “5” is the fastest.
* Pedal assist speed ( 0 – 5 ) — “0” is off pedal assist. “1 ~ 5” is the fastest. ONLY one max speed. If hope pedal with 5 kinds of max speeds, please choose the other controller of ours. Please click below link:
https://www.leafbike.com/products/diy-bike-conversion-kit/28-inch-48v-1500w-rear-electric-hub-motor-kit-1465.html
* …

Package Content:
1 x 28 inch 48V 52V 1500W rear hub motor wheel
1 x 48V 52V 1500W 18-MOSFET motor controller
1 x LCD
1 x Twist throttle — Cable length: 1500mm
1 x Brake levers — Cable length: 1500mm
1 x Three button switches ( control cruise .. ) — Cable length: 1500mm
1 x Pedal assist — Cable length: 900mm

Net Weight: 11.7 kg
Package Size: 66cm L x 66cm W x 25cm H
Package Type: Cardboard Box

This 28 inch bike motor kit can handle with a 48V or 52V battery.

29 inch 48V 52V 1500W rear wheel electric hub motor kit

29 inch 48V 52V 1500W rear wheel – electric hub motor kit

More info about this 29 inch hub motor kit

Main Features:
>. Rim: 29 inch double wall Alloy (Rim Fit For: 29 x 1.95″ / 2.0″ ~ 2.5″ tire)
>. Spoke: Black color 12 gauge / 189mm Length × 36 pcs
>. Default: Black spokes
>. Optional: Silver spokes — Please leave message.

>. Engine: Bldc electric hub motor
>>. Voltage: 48V / 52V
>>. Power: 1500W
>>. Efficiency: 90.5%
>>. Max speed: 77.8 kmh — 48.3 mph Default (Free customization other speeds: 35mph, 30mph, 25mph, 20mph, 15mph…please leave message)
>>. Max speed: about 70 kmh — 42 mph (Ride on flat road)
>>. Mechanical brake: Disk or V
>>. Sprocket: Freewheel or Cassette – space for single speed..6 speed or max 7 speed
>>. Cable location: shaft end, LEFT
>>. Cable length:100cm / 40″ — Update “3mm phase wires” & “Newest version hub”
>>. Install: spacing of Min 135mm to Max 155mm fork
>>. Noise: < 60 db >>. Surface: Black painted

>. Driver: Brushless motor controller
Default: Heat Shrink Bullet Crimp Female Male Wire Connectors Electrical Terminals for battery plug.(Leave message Optional: XT-60)
>>. MOSFET: 18 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 / 52 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Rated power: 1500 Watts
>>. Casing material: aluminum
>>. Maximum Current: 40 A ± 1 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 155 mm L × 72 mm W × 38 mm H

With LCD, More Function:
* Cruise — Green button Control (While motor is working,press green button one time,it will be “CRUISE” – running as the same speed)
* Reverse — Yellow button Control (“Left side & mid / forward — “Right side / backwards”)
* Kmh / mph
* Throttle speeds ( 0 – 5 ) — “0” is off throttle. “1” is the slowest. “5” is the fastest.
* Pedal assist speed ( 0 – 5 ) — “0” is off pedal assist. “1 ~ 5” is the fastest. ONLY one max speed. If hope pedal with 5 kinds of max speeds, please choose the other controller of ours.
https://www.leafbike.com/products/diy-bike-conversion-kit/29-inch-48v-52v-1500w-rear-electric-hub-motor-kit-1512.html
* …

Package Content:
1 x 29 inch 48V / 52V 1500W rear hub motor wheel
1 x 48V / 52V 1500W 18-MOSFET motor controller
1 x LCD – Cable length: 1500mm
1 x Twist throttle — Cable length: 1500mm
1 x Brake levers — Cable length: 1500mm
1 x Three button switches ( control cruise .. ) — Cable length: 1500mm
1 x Pedal assist — Cable length: 900mm

Net Weight: 11.7 kg
Package Size: 66cm L x 66cm W x 25cm H
Package Type: Cardboard Box

This 29 inch bike motor kit can handle with a 48V or 52V battery.

BMX 20 inch 60V 2000W rear hub motor electric bike conversion kit

BMX 20 inch 60V 2000W rear hub motor – electric bike conversion kit

More info about this 20 inch BMX motor kit

Main Features:
>. Rim A: 20 inch double wall Alloy (Rim Fit For: 20 × 1.35″ / 1.5″ / 1.75″ tire)
>. Spoke: Silver 12 gauge / 68mm Length × 36 pcs

>. Rim B: 20 inch double wall Alloy (Rim Fit For: 20 × 1.95″ / 2.0″ ~ 2.5″ tire)
>. Spoke: Black 12 gauge / 72mm Length × 36 pcs

>. Engine: Bldc hub motor
>>. Voltage: 60V
>>. Power: 2000W
>>. Efficiency: 90.5%
>>. Max speed: 42.7 mph
>>. Mechanical brake: V
>>. Freewheel: single speed cog
>>. Cable location: Shaft end, Right
>>. Cable length:150cm / 60″
>>. Install: spacing of 110mm rear fork
>>. Noise: < 60 db >>. Surface: Black painted

>. Driver: brushless controller
>>. MOSFET: 18 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 60 Volts
>>. Min. Voltage: DC 50 ± 0.5 V
>>. Rated power: 2000 Watts
>>. Casing material: aluminium
>>. Maximum Current: 55 A ± 2 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 234 mm L × 82 mm W × 42mm H

With LCD, More function:
* Cruise — Green button Control (While motor is working,press green button one time,it will be “CRUISE” – running as the same speed)
* Reverse — Yellow button Control (“Left side & mid / forward — “Right side / backward”)
* Kmh / mph
* Max speed ( 0 ~ 72 kmh / 45 mph )
* Pedal assist ( 1 – 5 )
* …

Package Content:
1 x BMX 20 inch 60V 2000W rear hub motor wheel (Fit for 110mm rear dropout)
1 x 60V 2000W motor controller
1 x LCD-003
1 x Twist throttle — Cable length: 1500mm
1 x Brake levers — Cable length: 1500mm
1 x Three button switches ( control cruise.. ) — Cable length: 1500mm
1 x Pedal assist — Cable length: 900mm

Net Weight: 11.0 kg
Package Size: 50cm L x 50cm W x 23cm H
Package Type: Cardboard Box

This 20 inch BMX bike kit can work with a 48V battery.