Tenders for Supply of Crowned Gear Coupling Hurth Coupling For Three Phase Wap -5 Loco As Per Abb Drg. No. 452478 Ia - 012 - 00453, Rev-1, Ia-011-00234 Alt - 4 Conforming To Rdso Specn. No. Rdso/2007/Str/0016 Rev-0 And Membrane Conforming To Specn. No. Rdso/2010/El/Spec/0107 Rev. 1 June 2010. One Assembly Implies One Coupling Of Gear Side And One Coupling Of Motor Side.