yassin.chiboub@gmail.com

Thank you very much ]]>

Please, can you an assembly file or the size of the parts (magnets size angle and position, air gap, …)?

Thank you so much

]]>Its great to see how efficient and great the motor is. I am working on a protoype for our company and looking for a motor for our electric motorcycle here in the USA.

I assume the motor comes with a controller. How much time would it take for you to deliver if i give you an order for the motor and controller?

If it works well for our application i can place an order of a 1000 units with you. We would need a customized controller as well.

Can you provide me with a delivery estimate and total cost with shipping to United States?

You can get in touch with me at the provided email address or I can share my phone number and we can discuss on the phone.

Cheers,

Milton

I am Trinh From Praxis Viet nam. Our colleague, Khank gave me your web, and i am impressive with you provide.

When i was in Holland in 2016. I didnt meet you.

Nice to see you. ]]>

Please can you help me files for the controller

I wish to modify so I can have my controller for 70KW. ]]>

I would be really interested in using one of these units to build an electric motorcycle.

Will you be sharing all the details to build one yourself, or selling the motor / kit?

]]>Forces on motor cycle are

1). rolling resistance force=120N

2). Gradient resistance force= 0 N on flat road and 2800 N on 45 deg slope

3). air drag force= 60N.

The tractive force to drive the motor bike with around 80% is found to be

– 7 KW on flat road

– 35 KW on uphill road

Speed is assumed of 130kmph on flat road ( 0 slope) and 25 kmph on uphill gradient of 45 deg. The motor shaft is with no gears and no clutch. Bike rear wheel is directly driven by chain linked to motor shaft. The wheel diameter is 18″(457mm).

Torque at motor bike wheel touching the road surface is

τ (NM)=Force (N)*distance of the wheel centre to road ( mtrs.)

=180*(18*25.4)/(2*1000)=41NM.

This is on flat road at max.speed of 130kmph

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τ (NM)=Force (N)*distance of the wheel centre to road ( mtrs.)

=2950*(18*25.4)/(2*1000)=675NM.

This is on uphill road of 45 deg〖slope 〗 at max.speed of 25 kmph

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How to find out the BLDC Motor rating at 48 volts? How much is the max. speed of motor and max. torque of motor to be designed?