Hi, we recently moved our 1980's Bridgeport Mill and to permit access to its new location had to remove the bed. I then discovered that the leadscrew nut was damaged and required replacement. I can find the standard brass 1 or 2 part 'X' axis nuts online, but have been unable to identify the type we have. It is a steel cylinder with ball bearings running in an internal thread. It has 4 milled pockets through the cylinder with inserts and nylon seals at either end. I wondered if anybody had come across this type before, and could suggest a supplier? I have tried inserting pictures to display the item but no luck so far!
The machine is a Bridgeport Vertical Mill by Bridgeport Textron of Leicester serial number 355230281V, and has an Anilam Crusader II control.