Hello, I am looking one direct drive DC motor that can provide 3Nm nominal torque with 300 RMP nominal speed ,
You can likely find some low KV brushless motors which can output that torque. A quick search online and some 1/2 horsepower motors are in the 2Nm to 3Nm holding torque range, but a lot higher rpm (3k+). You might also find some brushless hub motors in that range as well. Sorry we don’t have any links.
The largest DC motor RobotShop carries, the CIM motor has a stall torque of 24Kg-cm, therefore its continuous output is around 1/4 that value, so doesn’t meet your needs:
3 Likes