Posted 1/16/2018 12:41 (#6509636 - in reply to #6509542) Subject: RE: Metric finished bore sprocket
NW Washington
You might have a better chance of finding a Browning two piece sprocket with a separate hub with a 18 mm bore. Check with local bearing and power transmission stores and try McMaster-Carr too. Grainger might have something too. https://www.mcmaster.com/