|
In classical motor design you want as small a gap as possible between the rotor and stator. In smaller motors it's usually 1mm or less. When the bearings start to go you lose control of that gap real quick.
The problem appears to be when you add a motor to a hub it becomes so heavy it beats the bearings to death.
Now on something like a full float barrel bearing in an oil bath like on heavy duty truck axles the bearings should be able to hold up even with a ridiculous amount of mass on either side of the bearings.
It could work on a truck, but no one is going to put huge full float oil bath axles on a car.
It's easier to do what nissan, tesla and GM have all done.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
|