Why Is My Disc Coupling Slipping On The Shaft?

Welcome to Ruland's Collar and Coupling Corner! This is the only weekly show that answers your shaft collar and coupling questions!
This week's question comes to us from a user in Findlay, OH, who asks, "Why is my disc coupling slipping on the shaft?"
Watch to find out!
Helpful Links:
Disc Couplings: www.ruland.com...