41 B 12 Tooth 5/8" ID with a 3/16" Key Way and two Set Screws.
The Keys are not included in the order.
Click Here to add one or more 3/16 x 3/16 x 3/8 Keys.
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Click Here to add one or more 3/16 x 3/16 x 3/4 Keys.
Click Here to add one or more 3/16 x 3/16 x 1" Keys.
