Ray posted an interested column yesterday (9.13.19) addressing the question of what harm comes to an electric car from flooring the
gas pedal. Is that more harmful to an electric car than doing the same thing with a gasoline car? Ray mentions the stress on the car’s suspension system etc … but goes on to say comparing gasoline motors to electric:
“There are no moving pistons, no rings, no crankshaft, no connecting rods or bearings. That’s one of the great advantages of electric motors. Many fewer moving parts.”
While its true there are fewer moving parts in the electric engine overall, electric motors definitely use bearings. And the beefier the motor, and the more power extracted from it, the more forces on the bearings. So I got to wondering if bearing failure is a common problem in electric vehicles? What about other failure modes for the electric motor? Any motor failure patterns showing up yet?
Do these electric cars use gearboxes?