Hi Balsaman
Approximately how many hours do you think you would have on your 5/8" Ball Screws? Have you noticed any wear (increased backlash) on the Screws since they were installed? Approximately how often do you lubricate your Screws?
I guess what I am trying to figure out here, is the benefits for going with a 3/4" Screw instead of using the 5/8” ones? As far as the maximum load difference between these two Screws, it’s only 125 lbs. 5/8” Screws are rated at 825 lbs. and the 3/4” ones are 950 lbs. I guess for the same applied load, the 3/4” Screw will more than likely last longer because it has more area to carry the load. I can’t see machining pressure being anywhere close to the 825 lbs. rating of a 5/8” Screw, especially when working with Aluminum. Maybe I am missing something here, but I just can’t see that much of a benefit by going with the larger Screws? Price difference between the two is approximately $250.00 which is a little more than half the cost of the 5/8” Screws. Anyway’s, I need to make up my mined soon and would be interested in hearing any and all comments with either setup. Thanks for all your help.
Willy  |