voith fluid couplings

Dear Sir,

I want to purchase voith fluid coupling TVR 487 & TVR 422 type with pilot bore, so that i can use as common spare for all the drives. i m in gulf but with the same sepcification i used to get the coupling in india, kildly help for detailed speci, so that i can purchase. I have explored their web site but couldnt find

Regards

Suresh Deshmane