Gear Box Torque

[daviamp]

What is the torque output of the gear boxes provided with the kit using two small CIM motors on each one, as well as the stall torque.

[Jeff K.]

It depends on the wheels you're using. But if you do the 8" standard wheels that come in the kit, if my math is correct, you should have a top speed of 10.9 fps using the free speed of 5310 rpm.

(5310rpm * 14/50 * 14/50 * 21/28 * 8in/12in * 22/7[pi])/60 seconds

For torque, you should have 29 ft-lb using 2 cim motors with the stall torque of 343.4 oz-in.

(2motors * 343.4oz-in * 50/14 * 50/14 * 28/21 * [5.208 * 0.001]{to convert to ft-lb})/(8in/12in * 22/7[pi])

I hope that helps.:D

If my math is wrong tell me, because this is the way that I use to calculate the fps and torque for my gearbox designs.

[Arkorobotics]

http://www.arkorobotics.com/images/speed.jpg

This might help. ;)

It's in the PDF, you can find a good 10 pages worth of gearbox stuff. I recommened the combined pdf.

[Paul Copioli]

All the answers to your questions are in the 2006 transmission manual. The gearbox output torque curve for a two motor drive is in the appendix of the manual located on the IFI website.

[JVN]

All the answers to your questions are in the 2006 transmission manual. The gearbox output torque curve for a two motor drive is in the appendix of the manual located on the IFI website.

Located on this page:
http://www.ifirobotics.com/kitbot.shtml

Here is a direct link to the PDF:
http://www.ifirobotics.com/docs/2006-first-transmission-manual-rev-d.pdf