If you are using a commercial bracket, the bushing end of the can will fit close into the bushing
hole of the bracket. The easy way is to solder the motor to the bracket with a small drop of
solder at the top and bottom where it butts against the bracket. That is how the commercial racers
do it. Use only a small amount of solder, and no more heat than you need to make the joint. You
might have to scuff up the can of the motor where it will be soldered to make a better joint.