Wednesday, May 26, 2021

Re: [electricboats] What kind of fitting is this?

I don't think that will work.  There is no way to secure the splines together.  The spline is free by design to slide in/out.  That motor was meant for a rigid mounting of some sort not for a pulley drive.   It looks a lot like the input side of the V-drive transmission on my old diesel that mounted directly to the reverse gear on the motor.   You would need some sort of housing that the motor and the pulley (mounted on it's own bearings) mount to. 

 
Dan Pfeiffer


On 2021-05-26 12:12 pm, Ryan Sweet wrote:

Argh accidentally hit send instead of paste - something like this - ideally with a toothed belt pulley instead of smooth.... any thoughts on the best sources for that?
 
 

On May 26, 2021, at 10:10, Ryan Sweet <ryan@ryansweet.org> wrote:

enter gearsomutions.com for helping me get educated. 
 
So it looks like I would need something like this... 
 

On May 26, 2021, at 09:57, Ryan Sweet via groups.io <ryan=ryansweet.org@groups.io> wrote:

Thank you! That was what I needed to learn more. 
 
Any recommendation for a reference work that can fill these occasional gaps in my understanding of mechanical connections?

On May 26, 2021, at 09:49, Dan Pfeiffer <dan@pfeiffer.net> wrote:

Its a spline.   Very common on transmission shafts.   Allows for a slip fit and very high torque capacity.  

 


On 2021-05-26 11:40 am, Ryan Sweet wrote:

Hello,

I am evaluating an EV kit and I see this shaft on a drive motor... notice the female toothed grooves in the shaft... and I've not seen this before nor can I figure out what it is called.

Does anyone know the right way to describe this kind of fitting and what the corresponding male part looks like (say, for mounting a pulley)?

Thanks,
-Ryan







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