I mean, where is the installation of the reducer? I think the auxiliary motor also has the installation hole. Should the installation be the motor or the reducer?
The flange is used for connecting, and the reducer is connected with the working machine
The output flange is fitted directly to the equipment.
Reducer flange? You mean couplings?
Not used to install the reducer, the installation is: flange installation, power equipment or motor and reducer connection, installation