Brand new 7-3/4" outside diameter dual belt B section 2pc pulley assembly. This is a high quality cast iron pulley that has a 7-3/4" outer diameter, is 1-3/4" wide, and comes with a 1-1/8" sheave to secure it to the motor shaft.
If your application only calls for a single belt pulley, you can just use one side of this pulley. Both grooves do NOT have to be used. Also, A Section belts can be used with this pulley; they just set a little deeper in the grooves, which will lessen the diameter by about 1/2". Be sure to keep that in mind when calculating RPM.