Stall Torque of this motor?

Help & Support Robot Parts
1

Hi,
Can someone please r ell me what the stall torque of this motor is?
robotshop.com/en/brushed-dc-motor-6v-11500rpm.html
I cannot find it anywhere!!!

Thanks,
Rohan

2

Take a look at the following two articles:
robotshop.com/blog/en/vehicle-speed-rpm-and-wheel-diameter-finder-9786
robotshop.com/blog/en/drive-motor-sizing-tool-9698

3

From Pololu:

4

Usually the stall torque is about 4x the continuous torque. In this case, the stall may be around 300oz-in, assuming the 75oz-in is the continuous torque. Note that when people choose drive motors, they often include gearing, simply because normal DC motors rarely provide enough torque.

5

Ok thanks for that,
The 75 oz in of torque was generated at a ratio of 120:1,
When we take out the gearing the torque goes to 0.6 oz in. Then multiply that by 4 and you get 2.4 oz in of stall torque.
Assuming I added a 12.75:1 gear ratio, which brings the torque up to 7.65 oz In and and 30.6 stall torque.

Based on this info, how would I go about calculating the best wheel diameter for this bot?

Thanks,
Rohan

6

Hi,
I saw that, but how do I work out the stall torque from that?

The problem is that I am trying to find the most optimal whewl diameter for my robot