The part of a 5.25" floppy disk drive that presses the disk onto the spindle. It is usually part of the centering cone.
"clamping ring." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/clamping-ring>.
clamping ring. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/clamping-ring