Timing Belt Pulley Off Center

[stuxtruth]

I bought this 15T timing belt pulley from Enertion (Looks like a standard McMaster Carr part or something) and it doesn't seem to be true. I'll link the video below. Is this normal?

https://www.youtube.com/watch?v=oxLVGsFbq6M

Dont mind the bolt as a set screw. It was temporary.

 

[CSN]

Yeah my Enertion pulleys look slightly off also but seems to ride fine.

Make sure to have a well fitted keyway. It might be better for narrower motor mounts so the outside circlip can be attached.

Check out this way to tension the belt using a free guitar string tuner app.

https://www.youtube.com/watch?v=on_L6wAo5yA

I have played around with their recommendation to be between 220 and 260 hz and seems like a good guideline.

Anybody play with it? any opinions? The Metroboard belt is much thicker so maybe higher hz are in order for a thinner 9 mm belt?

 

[Trbt555]

Yeah my Enertion pulleys look slightly off also but seems to ride fine.

I certainly wouldn't be okay with that. The pulley should be perfectly aligned.
It will ruin the motor bearings in the long run.

 

[CSN]

yeah now running DIY's new steel 16t pulleys

I think with the Enertion pulley's go with the thinner mounts and or longer shaft to get the outer clip on.

I think the flange on 14t Enertion pullley looks off very slightly but the gears look aligned.

 

[stuxtruth]

These gears don't look aligned.

https://youtu.be/afgnnscM1q4

 

[CSN]

That looks way off.

I think it's the little bit of free play that I have noticed and then the fastener is pushing it out.

If one of the pins was landing on top of the keyway it might then be correctly aligned.

 

[stuxtruth]

It does the same thing if I roll it across the counter. It's way off.

 

[CSN]

That might make an interesting video to see it roll on a table.

 

[stuxtruth]

I'm not making anymore videos lol.

 

[Trbt555]

So what does Enertion say ? Will they replace it ?

 

[stuxtruth]

I don't think so. He will probably want me to send it back and shipping it back to Australia is more than its worth.