Flat spindle noses

[BROTHERFRANK]

I have 2 takisawa tt-2100g twin spindle lathes that have 140 F spindle noses. When I mention this information to royal or hardinge that look at me like a confused hound dog. I've had no luck adapting collet systems to these machines. Bastard spindle type.

140 Flat is common spindle. Kitagawa 6" chuck is 140 Flat. Royal has 140 flat in their catalog...