Shaft Collar & Hex Key for 3/8" OD Shaft – Quality Lab Accessories
1-3/8” bore (10PCS) set shaft collar, zinc plated FREE standard shipping! | eBay
Climax Metal NC-087 Shaft Collar, Set Screw Style, One Piece, Nylon, 7/8" Bore, 1-3/8" OD, 9/16" Width, With 5/16-18 x 5/16 Set Screw : Amazon.co.uk: Business, Industry & Science
Lovejoy SC2-6 Shaft Collar, Two Piece, Steel, 3/8" Bore, 7/8" OD, 3/8" Width, 6-32 x 3/8" Clamp Screw : Amazon.co.uk: Business, Industry & Science