I ordered some R16-2RS bearings from McMaster Carr last night for the drive sprocket shaft and for the driven sprocket.
I got a little bit done today.
I measured the ID of the bought type X hubs which was listed as 1 1/4", they were close. I checked my drum center that I had milled and it was a hair tight so I honed them out just a little, the bearings drove in nicely
I am putting up a picture of the way I intended to do the drum center so that if anyone wants to do it that way instead of having a piece milled it will be here as a reference for everybody.
This piece of 2 1/5" x .250 wall (2" ID) DOM is 5" long, you can make it whatever you like, the two type X hubs have 2" shoulders to fit into the DOM and have 1 1/4" centers to accept the needle bearings.
I got the top sheave mostly ready, it has to keep the cable on in all conditions so I did it similar to some store bought units. I will cut the nipple back to about a 1/2".
I cut a 3/4" piece of the 2 1/2" DOM and lined it up on the big sprocket hole, I am going to have two of the R16-2RS bearings in it, the sprocket is 3/8" thick and each bearing is 1/2".
The drive end will have a bearing in each end of the DOM, that shaft is all set waiting on the bearings.
I am contemplating just building a new frame and keep the one I have as a carry all type thing. I think it may be a little on the light side for pulling trees. Time and money will decide. I have some heavy wall 3/16" 1 1/2" x 3" rectangular tubing that I was going to use for my ROPS so I may use that for the frame and get some more material for the ROPS.
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