QS 138 3kW 72V80KPH Mid drive motor with new appearance belt design
- Category: Motorcycle Motor >>>
- Supplier: Taizhou Sia Trading Co. Ltd.
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Product Overview
Description
QS 138 3kW 72V80KPH Mid drive motor with new appearance belt driven
For 138 3000W mid drive motor kit assembly, it could be used for electric scooter, electric motorcycle.
It could be 72V 100KPH for 12inch rim e-scooter.
By the way, new 3kW mid drive motor doesn't have assemble kits, it's only available for separate selling.
Key Features
1). Simplify to make a electric-motorcycle. Gearbox, transmission shaft, clutch are no need. Which save space.
2). It could be installed in the rear to save more space for battery.
3). Support regenerative braking
4). High efficiency: 85~92%
Product description
Genearlly Spec:
Item: QS Motor 3000W 138 70H Mid Drive Motor
Motor Type:BLDC Permanent Magnet Inner Rotor Motor With Hall Sensor
Brand: QS Motor, QSMOTOR
Motor Design: Single axle
Matched Wheel: 12inch Wheel (as default)
Magnet Height: 70mm,40pcs,5pole pairs
Diameter of stator: 138mm
Rated Power: 3000W
Rated Voltage: 72V as default
Speed: 100KPH
No-load rpm: 3800rpm without flux weakening, 6000RPM with flux weakening.
Max Torque: approx 56N.m without Reduction ratio, approx 247N.m with 1:4.77 Reduction ratio
Reduction ratio: 1:4.77 (as default)
Max Efficiency: 88%
Continuous Battery Current: pending (72V)
Peak Battery Current: 120A (72V)
Suggest Peak Phase Current: 450A
Thermic Probe:KTY83/122 as default
Working Temperature: Pending
Single Hall Plate with waterproof connectors
16mm² Cross Section of Phase Wire (not include insulation layer)
Hall Sensor Phasing angle: 120 degree
Waterproof Grade: IP54
Color: Black
N.W./G.W.: 10.8kgs/11.5kgs
Package Dimension: 34cm*34cm*33cm
Axle design to match with belt as default.
P.S.: For 3kW 138 new mid drive motor, it can be customized to fit with 428 sprocket.
Extra costs for customized axle and 428 sprocket is $15.0/PCS
If you want to buy such mid drive motor, please kindly click below picture.
Dimension Drawing:
QS 3kW 138 mid drive motor(new appearance V2)
Please noted:
Optional appearance, drawing, performance curve/test report are available.
If you need more technical information, please feel free to contact us.
We will give you reply in 12hours.
Conversion kits for QS 3kW belt design mid dirve hub motor
We're able to supply Controller, display, dc-dc converter, disc brake system, twist throttle, matched tire...etc.
Application for 3kW belt driven mid drive motor
How to Recommend you suitable motors?
Firstly, To customize a suitable electric hub motor for your vehicle, could you please inform the points in below?
1. E-bike, E-scooter, E-tricycle or E-car?
2. Weight of vehicle with battery, loading weight (weight with load only)?
3. Tire model/diameter?
4. Rated voltage and wattage of motor, nominal speed/top speed, and climb angle or torque @ what speed?
5. Battery nominal voltage, peak voltage, capacity and vehicle range?
6. What's the drop-outs/rear fork width of your frame?
Within your details information, we could make assessment and calculation accordingly for your project
Company Information
About US
SIAECOSYS is an union of manufactories in electric driving industry, and belongs to Taizhou SIA Trading Co., Ltd that set from QS Factory in 2013 year.
Currently, more than 80 top factories join SIAECOSYS, and they are willing to provide customized products and service for international customers who has passion in e-scooter/tricycle/car industry.
SIAECOSYS focus on organizing member factories together to customize specific e-driving system solution and products for different requirements from customers in the world.
Nowadays, SIAECOSYS has more than 5000 customers from the world and more than 40 customers send inquiry every day.
SIAECOSYS has sale department, Technology department, Quality inspection department, general accounting department, purchase department and after-sale service department.
FAQ
Q1. Are you trader or manufacture?
A: We're manufacture.
Q2. How long is your production time?
A: Generally, the production period is 12-14 working days(6 working days per week).
The specific delivery time depends on the items and the quantity of your order.
Q3. How long is your warranty time?
A: For motor, the warranty time is one year and three months. For other parts, the warranty time is one year.
Q4. About Customs Clearance
For some special countries with strict customs for import, so pls. confirm it firstly to us that you have ability to do customs clearance, otherwise we will not take on heavy responsibilities for this issue, return money and goods are not support.
Special countries list:
Argentina, Brazil, Egypt, Turkey, Iran,Portugal,Romania, Kazakhstan, Ukraine, Yeman etc.
Some countries name not listed, the salesman will inform you in time if you placed the order online directly. Thank you for your understanding.
05. Does your products with CE certification?
Yes, our motor with Certification (CE, CCC), and our factory with certification of ISO9001, TS86949
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