Patent ID: 7387193

Claim:
A drum assembly for use with a coupling arrangement, the drum assembly comprising: an outer member including first and second annular portions and an intermediate portion extending between the annular portions, the first annular portion having a first mating surface that defines a first opening having a first diameter, the second annular portion defining a second opening having a second diameter that is smaller than the first diameter, and the intermediate portion defining a shoulder; and an inner member that is mountable on the outer member, the inner member including a generally radially extending portion having a generally axially facing surface and 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 generally axially facing surface engages the shoulder, and wherein the inner member further includes a hub portion that is configured to interlock with a shaft.