Edward Klepeis wrote:

Dear Doug of japan
I believe the alloy on the pulleys are 7075 I will know more about them when
I get them for my eng.The gentleman from the co. would like to attend
Sun N Fun next year  I think he has alot to offer the rotary movement. I am
looking forward to work with him on this project.
Regards
Ed
techwelding@comcast.net

You can always hard anodize them Doug to cut the wear.

Paul Lamar

-Douglas Fir wrote:

Paul

Yes  Paul like T6 hard anodizing. For surface.  I was concerned they might
be (lawn chair) aluminum 6061 which is not durable enough for that
application. Too soft.

 
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