Recently we did some update for our 3000w 205 50H V3 spoke hub motor to improve its waterproof
1. QS make dual holes for axle glue instead of single hole which make axle glue fill up with phase wires
2. Add heat shrink tubing to lengthen PVC silicone fiberglass sleeving for better waterproof
3. QS change better side cover glue and implement glue automatically (instead by hand)
More details about waterproof, pls see this link: viewtopic.php?f=31&t=65972&start=1100#p1385746
We have post QS 205 50H V3 Hub Motor for a long time, and thank you so much for your guys support.
The hub motor is more and more popular throughout the world.
I would like to do some modification of the thread for better understanding.
QS / Quan Shun, 205/50H V3 "Extra Type"
The QS motor company has also decided to begin selling their E-motorcycle hubs with axles that that have been modified to fit a bicycle.
Their motor phase wires are thicker than the other motors listed, and their axle design is stronger.
The stator width is 50mm, but also…the stator-teeth slots are deeper for more copper-fill, and all of this adds up to a motor that can take more watts.
Said by "spinning magnets" in electricbike.com. https://www.electricbike.com/large-hot-rod-hubmotors/
QS 3000W 205 50H V2 Motor is a robust, high power, high torque motor.
Suitable for all who want to ride fast. It can handle a lot of current and will nto overheat that easily.
It can withstand up to 10kW short boust of power. It is one of the most popular motors on the market and is also found as modified version (for ex. Cromtor etc.).
Said by "QULBIX" in their official website. http://www.qulbix.com/new-in-2016
QS 205 50H V2 Motor with QULBIX Q76R Frame (New)
Firstly, here is spec & price below.
SPEC & Price
QS 3000W 205 50H V3 E-bike Direct Drive Spoke Hub Motor (Black New Version)
1. BLDC Permanent Magnet Outer Rotor Direct Drive Spoke Hub Motor
2. Power: 50mm magnet height, 16 pole paris, 3000W rated.
36 X Spoke Hole OD 4.2mm or Dual Spoke 3.4 & 4.2mm.
3. Speed: Winding 24*5T, 650RPM at 72V, equal to 9.03kV (optional)
4. Designed to match with E-bike Disc brakes PCD6*44mm (not include Brake Disc),
14mm English thread for single-speed Freewheel (not include freewheel), drop-outs/Rear Bridge Clamping Width (150mm)
5. Two Halls with waterproof connectos(One for spare, in case of damage) , 10mm² Phase wire (not include insulation)
6. Thermic Probe: KTY 83/122 (optional)
7. Waterproof grade: IP54
8. Efficiency: 90.8%
9. Stronger configuration--high grade magnet, more cooper, bear more Ampere.
10. 10mm Axle flats
Net Weight: 12.75kg, Gross Weight 14.5kg (with single-speed freewheel, in carton package)
USD 266/piece base on 1-2pcs samples
, for ES member only.
USD 264/piece (base on 3-4pcs)
USD 261/piece (base on 5~9pcs)
USD 257/piece (base on 10~19pcs)
Payment term: Generally, we perefer T/T, Money Gram,Western Union 100% in advance (for sample). Meanwhile, we could also accpet paypal.
There will be extra cost for transaction fee: Total cost*4.4%+0.3 Withdraw fee: USD 35.0 (We could bear USD 31.5, and charge USD 3.5 for you).
Valid time: 30 days
For 24X5T Widing (Standard axle), there are 10pcs motors in store, the lead time could be 1-2 working days after receiving payment.
For other winding, 10-12 working days after receiving payment(6 working days per week).
You also can place order on our Amazon store: https://www.amazon.com/dp/B07CQVG8CG
For fast cooperation, We suggest to make the payment of the goods directly/in advance (no need to contact with us for normal orders),
and mark what you need after payment. For the delivery cost, it could be calculated accordingly and paid before delivery.
For the total cost, please refer to attachment (with our Paypal account, Sia@tzquanshun.com
PS. Please advise your detailed Recipient Information after payment, and if there is any request for customs clearance purpose.
Btw., we are going to develop 205 E-bike Hub Motor, 135mm dropouts (more than 205 28H).
Do you have any suggestion on the magnet height, power, speed, voltage, suitable freewheels?
QS support Customized, the axle could be customized accordingly (the cost and delivery time will increase).
Customized axle, 155mm dropout, USD 8.0/piece more, take 7-10 days more for customized axle.
Temp Sensor Options: KTY84/130, KTY83/122, 10K@25C NTC(model MF58-103F3950)
Attached SPEC of KTY83/122,
Note: QS Motor could work 120 ℃ in half an hour without damage.
Conservative Suggestion (Setting of Controller)
When it's 130 ℃ inside of motor (in 30s), the current should be limited 50%.
When it's 150 ℃, the controller shut down.
When it drop down to 110℃, the controller work again.
For more infomation, please refer to attachment "New 205 50H 3000W Spoke QSMOTOR Quotation & SPEC".
Here is more pictures inside of the motor.
Magnet Height 50mm
Alxe Flat 10mm
Bearing 6006RS 6004RS & Side Cover
Extra Side Cover is available, it's USD 12.0/set(Include 2pcs side covers, 2pcs bearing and oil seal)
Hall Sensor Honeywell & Temp Sensor KTY83/122
PS. We could offer extra Hall Sensor if wanted
Comparison QS V3 (Old Version) with Cromotor, MXUS by Customer (thank to ridethelightning)
Performance & Testing
Here is two performance curve/test report, with SVMC72150 controller.
For 200A Phase current, EFF 90.9%, Peak Torque 172.6N.m
For 350A Phase current, EFF 91.5%, peak Torque 179.5N.m, max output 7227W.
If you have more information or suggestions about test data, please feel free to contact with us.
PS. I plan to set about 190A, 72V & 96V to test peak output of the motor.
100V 200A Power Supply, 300N.m Dyno
Temp Sensor of Multiplex Temperature Tester, same position as thermistor KTY83/122
Sabvoton controller APP could display precise temp of motor as the Multiplex Temperature Tester.
Phase Current 100A, Last 36s, about 90N.m, the temp go to 150℃.
Phase Current 150A, Last 20s, the temp go to 180 ℃, and there is smoke.
For phase current, 100A 36s, 150A 20s, 220-240A, 2s.
After Chinese New Year, we will keep on testing 24X5T winding motor when come back to work.
E.g. Input 72V 150A or even 200A battery current...
More testing on V2 18*4T Winding...
For QS 3000W 205 50H V3 Spoke Hub Motor, 24X5T Winding.
Phase current, we suggest to set 200A (10s), 220-240A (1-2s).
For battery current, it could be 150A (72V).
For other winding motor, we suggest to set max phase current 40 Time of Wire cross-sectional area (10s).
E.g. 24X5T winding, the wire cross-sectional area is 24X0.204=4.896mm²
Peak Phase Current 4.896*40=195.84A.
Electric Motor Kits
Most Customer choose Adaptto MAX-E controller, but I have little understanding of the controller.
Some customer ask me about the correct setting, I will try my best to get it.
Meanwhile, could you please help me out and advise some information on this?
Personally, I prefer Sabvoton Sine Wave Controller, SVMC72150.
Item: Sabvoton SVMC72150 3kW-4kW Sine Wave Brushless Motor Controller(programmable)
Price: USD 238.0/piece
for ES member only (for samples).
1. Brand: Sabvoton
2. Power Supply: 72V(36V-98V), Limited Batteryt Curent: 150A, Max Phase Current: 350A.
3. Product Size: 249mmX146mmX65mm
4. Net Weight: 2.2kg
5. Including: 1pc controller+1pc USB Cable+ 1pc Function Harness
6. Essential Function: Hall, Throttle, Electric Lock, Brake for high level.
7. Addtional Function:
a. 0-5V variable regen brake signal (command regen current),
b. Temp Sensor (Suit for KTY83/122),
c. Three Speed Switch (High/Balance/Low).
d. Hall Speedometer.
Item: Bluetooth for Sabvoton Controller (optional)
Price: USD 25.0/piece
for ES member only (for samples).
PS. The Blue Tooth is not very stable, it's under updating, estimated to be updated on July, 2016.
For more information, viewtopic.php?f=31&t=65972&p=1130438#p1130438
Btw., The controller could be unlock to be 200A battery (no warranty, risk on customer).
The most popular one is CYCLE ANALYST V3, we have got 2pcs CA samples.
And ask Sabvoton to modify inside of controller to fit with the speedometer (add shunt and change connectors).
Hopefully, we could provide motor, controller, CA3 as whole kits in near future.
PHEASANT Brand Freewheel, USD 7.0/piece
1. Single speed 1/2*3/32*16T or 18T
3. English System Thread, Suit for QS Motor (English thread)
YuQiu Three Speed Freewheel, $4.0/piece
1. 16T 19T & 22T
3. English System Thread Suit for New QS Motor
Front & Rear Wheel RIM set
We are able to lace the spokes in 19X1.6" front and rear wheel in 1X2 cross pattern(for better customer service).
For other wheel rims, it's not avaiable for the moment, we will update in thread if any news.
Item: 19"X1.6" 1X2 Cross Pattern Rear Wheel Set
19"X1.6" Black moped aluminium wheel rim
36X10G Spoke , silver color (Iron with zinc coat)
QS 3000W 205 50H Hub Motor, 36 holes, 150mm dropouts, black
For Rear Rim, Nipples, Spoke, $53.9 For Lacing & Truing, $25.0
Total cost $78.9
Item: 19"X1.6" 1X4 Cross Pattern Front Wheel Set
19"*1.6" black moped aluminium wheel rim
32X10G Spoke (Iron with zinc coat).
Front Hub 32 holes, M20 diameter, 110mm dropouts, black
For Front Rim, Nipples, Spoke & Hub, $ 84.0 For Lacing & Truing, $ 25.0
Total Cost $ 109.0
PS. We enlarge the spoke hole of front hub to fit with 10G spoke.
For more information, viewtopic.php?f=31&t=65972&p=1102374#p1102374
frock clamp for assemble hub motor by hand
, USD 31.5/set
Wuxing Thumb Throttle, USD 6.0/set
High Quality, Wire length 500mm
Applications for reference
East GEM factory http://www.eastgem.net/
More details, pls see this link: http://www.amazon.com/dp/B07CWMW9XJ
If any question, please feel free to contact with us.