Locking elements consist of one internal and one external tapered rings. They are designed to work in combination with a clamp flange which can be bolted on a hub or shaft depending on application need.
Here are the dimensions of product :
Inner Diameter : refer to numbers writen after "F" in every product name. For example, CAL2F10/13; so, the inner diameter is 10 mm.
Outside Diameter : refer to the last number in every product name. For example, CAL2F10/13; so, the outside diameter is 13 mm.