Vintage Windmill and Wind Generator Forum

Does anyone know what the numbers are for on this spider? See pic.

Mike hope your situation gets better soon.

Kenneth

Happy Birthday John. Hope you have a good one.

Kenneth

Happy Birthday Thomas. Hope you have a good day.

Kenneth

What is the go to material for the rope seal on a windmill hood?

Kenneth

Happy Birthday Ivan hope you had a good one.

Thank you RPinAZ for your response. I have found some ground 4140 HT that I think I will use. That is close tolerance and should work fine. I will keep you all posted.

Can anyone suggest what material to use for the Challenge 27 shaft for the bull gears. I see in the literature, it says this shaft is case hardened. Will I have to quinch this shaft?

Thanks, Kenneth

Dan yes. It looks like the one in your picture. Now I understand how it works. Thanks Dan.

Can anyone suggest what material the shaft for the bull gears should be? I see in the literature it says case hardened. Thanks, Kenneth