Material for 7ft long trailer roller; aluminum, steel pipe, or galv. steel?
I dug around a bit on this one before posting, but couldn't find an answer. Anyhow, I am building a roller for my trailer and found that a 1-3/8" OD flanged radial bearing fits well into sch. 40 1-1/4" pipe. I want to build a full length roller that is 7ft long from 1-1/4" sch. 40 pipe and I am wondering;
*Do you think a 7ft long roller supported on ends that is made from sch. 40 aluminum will bend under the load of a raft, or if I should go with steel pipe?
*Is there any reason not to use galvanized steel pipe in this application?