I've had this on my shelves for several years, buried behind other merchandise. I really don't know how old it actually is, as I don't have the original packing slip and there are no dates on the original box.

This unit is NOS, never installed, fully functional and ready to go. Some of the unpainted steel and cast iron surfaces have a bit of surface rust, nothing that affects it's functionality. The shaft diameter is 1-3/8", and the triple pulley has a diameter of 8-3/8". Included is the key, spacer, flat washer and 1-1/4-12 locknut for the fan. Fan is NOT included, this is only the bearing assembly as pictured.