Spur Gears; Brushless Motors
I realised that it's been a while since I actually posted on here! A little stumbling block I've run into today - I'm currently designing a combat robot (because Robot Wars is back!), and realised that I don't actually have a clue how brushless motors work etc. I've done some reading up and am now less naive about them, but can't seem to figure out a way of estimating torque. We're gearing our motors way down (5:1, output shaft speed around 1750RPMish) but I have no realistic idea if the motor can provide enough oopmh/will actually accelerate the bot in a reasonable fashion.
Anyone got any recommendations on how to work it out?
The motors that we're hoping to use for drive are 6KW/170Kv models, (Link here), and we're using some 11'' Go Kart tyres because they were free and we're poor.
Afterthought: Spur Gears - for proper tooth fit, it's (PCD + PCD)/2, right?