Sprocket # 40 B 12 Tooth 3/4" 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.
Click Here to add one or more 3/16 x 3/16 x 1/2 Keys.
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.