Anything over 28.3-28.5 mm. If necessary, look for something more precise. Update: Take another star off, they just aren't accurate enough and not worth the effort and time to get them back. upset.
Climax Metal C 100 Collar Plated: π Exceptional Strength & Durability for Secure Shaft Attachment
3 Review
π© Climax 2C 112 Two Piece Clamping Plating: Enhanced Precision and Efficiency
3 Review
π© Durable Solid Steel Plated Shaft Collars Set for Efficient Industrial Applications
3 Review
π Urethane Elastomer Nominal Coupling for Lovejoy Applications
3 Review