The window uses a red spiral balance tube of approximately 30". The diameter of the spiral balance tube is larger than 1/2 inch. The spiral itself terminates in a double cross pin and is 31 and 1/16" long.
The previous pivot shoes have fallen away outside the building, so I can't use them as a measure.
The depth of the channel is approximately 9/16". The width of the channel is approximately 1 5/16" inch. I can't measure the height of the shoe unfortunately without removing the window, which doesn't want to come out.
The window pin goes into a bushing that's light blue in color.
If you could recommend pivot shoes within the dimensions of 9/16s depth and 1 5/16th inch width, I would appreciate it.
Thank you.
