Hi Sikh Soldier, just want to state that I respect the distinctiveness of the Sikh religion, and I do not have any agenda of merging it with Hinduism. However, I do believe that all religions are to some extent inspired by those that developed before them, I just thought that looking at some of the possible inspirations for Sikhism could help shed some light on why they came to use the Chakram.
Please note that Govind/Gobind is a Sanskrit name, and translated literally into English it is Go (Sanskrit for Cow) + Vind (Protector). In classic Hindu literature such as the Harivamsha and Mahabharata it is used as another name for Krishna. Here is a link confirming this:
http://www.indianchild.com/baby_name_indian_boy_g.htm
I am sorry if my theories have caused any offense, out of respect this will be my last post on the subject.