Shaft Material
Shaft Material
(OP)
We have a large hanging hanger door with a large shaft that runs the length of the door. The motors are attached at the top and pull of the 3 pieces of the hanger door together using the pulley and wire system. What material do you think the shaft should be considering the site is about 1 mile from the ocean? The contractor is thinking of using a primer on it to prevent rust, but in my experience I usually don't see any paint or primer on shafts. The shafts I see are normally indoor motors and really aren't exposed to the elements. What material and finish on the shaft would you use?
Thank you for the help
Thank you for the help





RE: Shaft Material
RE: Shaft Material
RE: Shaft Material
RE: Shaft Material
RE: Shaft Material
RE: Shaft Material
I'm with CoryPad on this one. A coated/plated shaft is the way to go, or even better, use stainless.
Adriaan.
I am an Engineer/part time student (Mechatronics) from South Africa.
Advice from lecturer: "Be warned - when you go into industry your boss will give you a thousand things to do and he wants them done yesterday!" So far he is right...
RE: Shaft Material
I think you are over-thinking. Use a cold rolled shaft and let it rust. If you're that concerned about corrosion, I would coat it with a tacky rust-preventative spray.
Russell Giuliano
RE: Shaft Material
I once recommended it for automotive use, and the powers that be quashed it. Was this part of their plan to support planned self destruction?
RE: Shaft Material
Dan T
RE: Shaft Material
1045 with thin dense chrome would give excellent corrosion resistance, excellent wear, accurate dimensional control, and could be periodically re-plated if necessary. Thin dense chrome on 1045 steel may be a less expensive option than using a stainless steel alloy.
http://www.hitecplating.com/tdc.php
Hope that helps.
Terry
RE: Shaft Material
RE: Shaft Material
Using regular cold rolled steel and coating the exposed parts with something like Cosmoline or painting the shaft with Carbomastic might be the way to go. Carbomastic paint is often used on the steel parts of moveable bridges. You could also coat the coupling journals with NeverSeize if you don't need the friction of the fit to help transmit torque.
RE: Shaft Material
There are several suppliers of the 17/4 PH SS shafting material like Western Branch Metal's Aqualoy 17
http://www.wbmetals.com/
RE: Shaft Material