For mounting on threaded shafts, these rubber expanding drums have a matching internal threaded bore. For mounting on smooth round shafts, these drums have two socket set screws. Ideal for motors, grinders, flex shafts & bench mandrels. Rubber expansion is controlled by tightening/loosening the hex nut.

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Item #

Drum Dia.

Bore

Drum Width

CAD

N/A 3 in N/A 1/2 in N/A 1 in N/A
N/A 3 in N/A 1/2 in N/A 2 in N/A
N/A 3 in N/A 1/2 in N/A 3 in N/A
N/A 3 in N/A 5/8 in N/A 3 in N/A
N/A 3 in N/A 3/4 in N/A 3 in N/A
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1 
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