How to order a drum gear coupling

Now the new and old customers in the process of ordering the drum gear coupling, we do not know what data they need to provide to the manufacturer, then the manufacturer will talk about what parameters should be provided in the process of ordering, in order to use the future ordering.
When ordering the drum gear coupling, if the coupling the customer needs is the standard coupling, then the main data provided to us have the diameter and length of the shaft hole of the half coupling. If the coupling you need is not a standard coupling, you need to provide us with other standard dimensions that are different from the standard coupling except the diameter and length of the shaft hole of the half coupling, such as key depth and key width of the keyway, large outside diameter and small outside diameter, etc.
There is another situation in the purchase of drum gear coupling, if you need the coupling drawings, then you need to give us the drawings, so that the manufacturer can customize the appropriate coupling model and size for you according to the requirements of your drawings. If there are other questions can come to the manufacturer for consultation, we will be sincere attitude to treat every caller.