This is Jet no. JWL1442-159. This is the variable speed pulley set for the motor arbor on the JWL1442 lathe. These are only sold as sets. The bore size is 16mm or .629. This should be a slip fit so the pulley can slide on the shaft. Shipping on this item is free via USPS or UPS. I do ship internationally, just email me your location and I will quote shipping to your country.