Very informative, thank you for the videos, I am curious how to switch the small gear on the motor shaft that connects to the large gear inside the gearbox. Is that small gear called a pinion? When looking at the replacement motors online they don't see to have that small gear they are just a round shaft.
You need to heat is up with a lighter and pull it off its a press fit; then press it on to the new motor. Remember there is a plastic washer behind the gear so not to much heat.
If I apply 18v to a stock motor, would that be problematic? I.e swapping a 6V stock battery to an 18V Milwaukee drill battery? I ask because I see all these videos on YT where guys are just swapping the battery, but won’t that just burn out the motor? Thanks, great videos btw!
I want to put two 350w motors in my sons police car but I knew these gearboxes were cheap. It would be nice to find aftermarket boxes with all metal gears
The way the torque is distributed through the gears; only this gear needs to be metal and the rest hold up great after the torque is reduced through the gear set.
What is the rpm of these 775 motors? I look on ebay and they are only 9000 rpm at 24v. Bought them and they run very slow. Even at 24v the 775 motor i bought run maybe 3 mph max.
you sound native american in the beginning. Overvolting a 12v motor to 24v will be faster than running a 24v motor at 24v. Since your new motor is bigger it will have more torque even with less volts but the speed won't be as fast.
