These are replacement chair glides for my tall kitchen island stools. The originals break easily and are hard to find replacements. I made my own and they are much tougher. I haven't broken a single one of the 3d printed ones. Almost all the original ones have broken.
These should fit your chair if the foot socket is 31mm inner diameter or about 1.22".
They are snug and should be tapped in with a hammer.
glide2.stl | 997.2KB |