... frame No,. The frame No,is indicated with 55,75,85,130 (The frame No, corresponds with frame ... Dia. 55,75,85,130mm).2.SDZ indcates Lanthanide PM DC ... extension),AA5(double shaft extension) and frame No,(55-130). 2.Flange Mounting:A3(single shaft extension), ... AA3(double shaft extension) and frame No,( 55-130). 3.Foot Mounting: A1(single shaft extension), ...