looking at designing mine at the mo, and wondered what the thoughts where on an ali spur gear, made from a hard grade ali??

or should it be from en24t or the likes???

cheers

barry

I think if you made it from ali it'd get chewed up quicker than a pepparoni pizza at a weightwatchers meeting. There's a lot of force going through the little spur gear. I think some heavy duty steel would be required (unless you only ever want to use it a couple of times of pass scrutineering).

i had thought of making a steel ring gear and shrinking it on to an ali body....

it is for scrutineering ....

Bicycle chainwheels are made of aluminium and last for ages with decent levels of force.

Not an answer, more of a comment.

I would say steel or it would be another possible fail point.
The ring gear idea sounds good, but dissimilar metals is just asking for trouble (catalitic corrosion).

Darren

on a car that will do less than 3000 miles a year and will allways be dry im not too worried about corrosion...do ali flywheels have this problem??

cheers

barry