CNC not needed
Your friend has a lathe. If a mill is also available you can make them pretty easily and for a lot less that $1666 (had to convert, no euro character on my keyboard). I made my lower (and upper) shafts from round bar on a manual lathe and mill. In order to accomodate the two front mounting bolts you have to start with a larger diameter bar ( about 75mm ) so there is a lot of turning time but the only precision parts are the ends where the bushings mount. You can include the integral threaded stud for the castle nut. After turning, mill the central part flat top and bottom to the appropriate thickness and transfer the 3 mounting holes and drill. You'll want to use a hardenable material with good tensile and impact strenght properties. I used 17-4 PH mat'l. Check the photos of the bushing I sent on your other post.
Grampy
Your friend has a lathe. If a mill is also available you can make them pretty easily and for a lot less that $1666 (had to convert, no euro character on my keyboard). I made my lower (and upper) shafts from round bar on a manual lathe and mill. In order to accomodate the two front mounting bolts you have to start with a larger diameter bar ( about 75mm ) so there is a lot of turning time but the only precision parts are the ends where the bushings mount. You can include the integral threaded stud for the castle nut. After turning, mill the central part flat top and bottom to the appropriate thickness and transfer the 3 mounting holes and drill. You'll want to use a hardenable material with good tensile and impact strenght properties. I used 17-4 PH mat'l. Check the photos of the bushing I sent on your other post.
Grampy
