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

You'll use a splined shaft when the shaft has to move axially.

(Look at your wheel hub shafts in your car.)

That means, Ryan, than you will have to fix the spline to fix the movement.

Can be done by making a locking pin hole through the motor shaft and the spline shaft.

Again, you'll need a machinist to do the job.

On Thursday, 27 May 2021, 09:36:31 GMT+8, Jeffrey Griglack via groups.io <griglack=yahoo.com@groups.io> wrote:

A fitting like this is commonly used in electric golf carts.  I have a (approx.) 3 hp motor and spline from an old golf cart sitting in my home office someplace.

On Wednesday, May 26, 2021, 9:07:43 PM EDT, Carsten via groups.io <carstensemail=yahoo.com@groups.io> wrote:

Ryan, you'll need a machinist to turn this shaft into a diameter that fits the toothbelt pulley, and a key slot, made for same.

Or ask the manufacturer of the motor if they have any straightforward recommendations for you.

Carsten

On Thursday, 27 May 2021, 01:12:28 GMT+8, Ryan Sweet <ryan@ryansweet.org> 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