NEW QS 165 MOTOR

It depends how much power you're running, but you should definitely look up the power rating of a 8m belt at that width, I doubt it's capable of carrying the torque that these motors are capable of.

you make a good point (and your user name definitely checks out)

The motor is designed to be a drop in for the surron, which uses a two stage gearing system:
p7t4XR7.png


So I assume we have lower torque on the input side of that gear box, which is fine for that size pulley/belt, but it's not a good match for a direct drive system to back wheel.

This would be a compelling reason to lose the pulley and put on a metal sprocket. That would also allow to use smaller teeth so the back sprocket doesnt need to be as large as originally calculated with the existing belt drive.
 
i've used the QS 138 70h at 20kW on HTD-8 belt, 20mm wide, never gotten a slip. It'll work if you get one of the higher spec belt types and maintain correct tension.

look at synchroforce carbon as an option, 45kW :wink: there are others off course.
belt calc.JPG
 
Will be sold as Sur Ron Motor! So it will fit. But with 7 pairs of poles, therefore only for configurable controllers.
 
FYI, the aliexpress page said they can ship with sprockets, and I contacted them through aliexpress they said they will only be selling with belt drives for the first motors. From some of the pics it does not look like a spline shaft, but seems more like a threaded round shaft with keyway.

This MIGHT be a sprocket that will work: [LINK], and picture:

OnHd1NJ.png


Chain Size 428
Teeth 11
Bore Diameter 20mm with 5mm key

What would be nice is to know if the QS165 has similar shaft, and then I'd lay down my money to get one.
 
A couple of engines were delivered today. If you have any questions, I will help

[img="https://illegalbike.ru/uploads/for_web/qs165_1.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_2.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_wires.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_weight.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_repair.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_motor_pole.gif"][/img]
 
Should be relatively easy to replace the horseshoe with a hall board. hacksaw or 3d-print hall carrier with built in adjustment. Could be some loops to get the location right since it looks like there’s barely any space between all that copper :D

Motor looks good!
 
illegalbike said:
A couple of engines were delivered today. If you have any questions, I will help

[img="https://illegalbike.ru/uploads/for_web/qs165_1.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_2.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_wires.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_weight.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_repair.JPG"][/img]
[img="https://illegalbike.ru/uploads/for_web/qs165_motor_pole.gif"][/img]
does not look like that encoder is water proofed, how's the general water proofing?
 
larsb said:
Should be relatively easy to replace the horseshoe with a hall board. hacksaw or 3d-print hall carrier with built in adjustment. Could be some loops to get the location right since it looks like there’s barely any space between all that copper :D

larsb -- do you mean to replace the existing sensor at it's current location at the end of the shaft with a hall sensor? I'm asking because I thought hall sensors usually got embedded in the stators.
 
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