The manufacturer of this door disappeared years ago. Acme was bought out and many parts were discontinued.
I fixed the problem by combining my frame with your new roller. The sliding portion of the assembly that holds the roller is the same size on both the old and new pieces, so I removed the sliding piece from the new roller assembly. I then drilled a 7/16 inch hole at the top of the slot in both the old and new sliding pieces to clear the rivet head on the old frame. When the roller assembly is installed on the door, the enlarged hole is well above the rivet so there is no danger that the roller will fall off.
I could have used the new roller assembly as is by making shims to slide into my door frame to hold the new roller assembly at the correct angle.
Jim
Parts requiring replacement have stamped on them ACME 4011
US pat 3.058.173. Nylon wheel, pointed profile circa 1.25 inch
Same as above, however, all I needed was a round file & it was quick - removed the old slide by freeing the revetted lug (in the housing) by filing small curved notches on both sides of slot using the 16mm hole on the housing. Then filed the top end of the slot on the new slide to get it in through the lug onto the housing.
Cheers, PK
Thanks to all posters. I was able to fix the roller assembly of the Swissco parts to the base plate of my old Acme parts with a round file and some elbow grease. I'm VERY happy to have stumbled over this discussion and have purchased these swish parts :-)