On Oct 29, 2:41 am, Don Foreman wrote:


Speed and load will be low in an anenomometer, so precision really
isn't necessary. I'll probably use small motor bearings or router
guide bearings.

I would use Teflon or jewel bearings. I think that any ball bearings
would have more low speed drag especially if they have seals. A
stainless shaft and either a glass jewel or teflon would not need
protection from the elements.

Dan