I've been off the grid for a while and had to re-register as a new member as a result!
Anyway, I was going to make some bushings for the new spindles I'm installing on my Faultless Speedster project. These are the regular 09-27 'Top Hat' #2713 style bushings. I was wondering if one of you more experienced machinists on the forum might have a suggestion for the best material. I was thinking bronze but # 936, 544 or standard 932 bearing grade bronze???
Yep, I know I can buy em cheap from the vendors but I have the tooling & the time so I'd rather make my own.
Jimmy - Naperville, IL
MD Nylon is the way to go . Hi lubricity and out wears the bronze.
932 or 936 (which is a freer machining version of 932). Since the spindle bolts are not very hard I would likely not use 954 Aluminum Bronze.
932 should hold up reasonably well. Certainly better than brass. You might consider phosphor bronze. I switched over to phosphor bronze from 932 for gear and pin bushings on a Perfecto. It machines almost as easily but is twice as tough. Only thing is you must buy solid rods, cored rods are not available.
I have some 932 solid bar bronze I just got from McMaster so I'll give it a go. I've no experience with the Nylon MD stuff nor have I read much about it on the forum. I will say, at only $5.18 per ft. for 1" rod ( I just looked it up) it certainly is cheaper. See link:
Ralph Zajicek of Z Head fame designed and fabricated some inserts to take the play out of the tie rod ends and wishbone ball using Nylon MD. They worked well.
I looked it up also but I balked when I found out that the handling/shipping charge is $25.00 for even the smallest order.
Yikes! There are other more reasonable sources, I just pulled that one off google.
I buy all my metal rod/hex bars from: http://www.onlinemetals.com/
pretty reasonable prices for the little home shop guys. Jimmy
Richard : Nice Perfecto pictures !!