Heritge ceiling fan. I have bought from a friend a heritage ceiling fan but he has misplaced the

Question

I have bought from a friend a heritage ceiling fan but he has misplaced the plate that attaches to the shaft a the ceiling fan, and also to the ceiling. It helps the fan rotate on a even scale. How can I get just the plate I need. The model is # FN42UL. Another number on the fan is E187140-A. Can you help me? email address: [e-mail]