Gearbox for 5" wheelset

This shows the general arrangement of the gearbox. This uses ball and needle roller bearings throughout with the gears being keyed to shafts where necessary. The intent is that the grars will be all steel and the whole thing will be grease packed for life. The ratio used is 8:1 giving around 10mph max speed. It could be geared lower but the motor doesnt need it.