Patent ID: 7150347

Claim:
A drum assembly for use with a coupling arrangement, the drum assembly comprising: an outer member including first and second annular portions connected together, the first annular portion having a first mating surface that defines a first opening having a first diameter, and the second annular portion defining a second opening having a second diameter that is smaller than the first diameter; and an inner member that is mountable on the outer member, the inner member including a generally radially extending portion and a flange portion extending generally axially from the radially extending portion, the radially extending portion including a second mating surface that is engageable with the first mating surface of the outer member to interlock the inner and outer members together, wherein when the inner member is mounted on the outer member, the radially extending portion extends into the first opening, and the flange portion extends into the second opening; wherein the outer member includes an intermediate portion extending between the annular portions, the intermediate portion defining a shoulder, and wherein the radially extending portion of the inner member has a generally axially facing surface that engages the shoulder when the inner member is mounted on the outer member.