Leopard recommended motor temps from manufacturer/ importer

[KartRacer]

Dear Dennis,

Thanks for your kind mail.

We recommend that the temp of the running motor is not over 80℃.It is better.

Best regards!
Betty

Leopard Power Model Co.,Ltd

https://www.leopardhobby.com

----- 原邮件内容 -----
From: Dennis Brandon
To: "[email protected]"
Sent:Tue, 20 Nov 2012 22:17:42 -0600
Subject: Motor temps


>
>What is recommended running temp of the Leopard 4092 1480kv motor and other larger Leopard motors.
>Thank you
>
>Dennis Brandon from iPad 3
>

[MAMBA2200]

so 176 degrees wow thats hot i hope my motors never see that

[kevinpratt823]

The rotors begin to de-magnetize at some point beyond 200, it is generally accepted in the car world that below 200 is safe, operating temps of 180 are not uncommon in cars, I would imagine this would go with boats as well........
Once a rotor de-magnetizes a bit, it creates a runaway situation, creating more heat, causing more de-magnetization, creating even more heat, and so on, until it fails completely.

[cugino]

it is not only about of demagnetized magnets. it is also about epoxy, that hold carbon or kevlar bandage in one piece. We all know, what does heat do with epoxy. And you can very precisly extrapolate, how long will stay magnet on rotor without stiff bandage. Haha. :-)