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Chevy Bolt motor / transaxle teardown

Posted: Wed, 09 Jan 2019, 11:40
by jonescg
I really love watching these videos by John Kelly and the Weber Auto team.



The Bolt motor and transaxle is an outstanding bit of engineering. I love the way the driveshaft goes right through the rotor :D
Also notice how big the entire assembly is - smaller than a watermelon but good for 150 kW. And 13 moving parts if you're generous.

Re: Chevy Bolt motor / transaxle teardown

Posted: Fri, 11 Jan 2019, 13:10
by T1 Terry
I wonder when these units will come on the market along with a control module of aftermarket control module. they would make a great drive unit for converting just about any ICE to all electric drive.

T1 Terry

Re: Chevy Bolt motor / transaxle teardown

Posted: Fri, 11 Jan 2019, 17:25
by 4Springs
jonescg wrote:
Wed, 09 Jan 2019, 11:40
13 moving parts if you're generous.
I count each ball/roller in a bearing as a separate moving part...

Re: Chevy Bolt motor / transaxle teardown

Posted: Sat, 12 Jan 2019, 12:23
by T1 Terry
4Springs wrote:
Fri, 11 Jan 2019, 17:25
jonescg wrote:
Wed, 09 Jan 2019, 11:40
13 moving parts if you're generous.
I count each ball/roller in a bearing as a separate moving part...
What about the splines in each of the stub axles? Do you count each spline or just the 2 stub axles? :lol: The ball or roller could be a separate moving part, but it can only be serviced as a complete brg assembly, so it really is only one part. I wonder how the ceramic bearing would go in that application, less friction and not as critical regarding lubrication or heat stress. Somehow I can see that oil filter becoming an external spin on assembly further up the track and maybe an external coolant to oil heat exchanger for the warmer climates like Australia.

T1 Terry