| 摘要 |
A drum assembly for use with a coupling arrangement includes an outer member and an inner member that is mountable on the outer member. The outer member includes first and second annular portions connected together. The first annular portion has 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. The inner member includes a generally radially extending portion and a flange portion extending generally axially from the radially extending portion. The radially extending portion includes a second mating surface that is engageable with the first mating surface to interlock the inner and outer members together. 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.
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