Coupling Hub for 6 mm Shafts Hello Customers, we would like to inform everyone that we will not be accepting orders until we fix the issue of disappearing shipping cost from your orders. We are still investigating and fixing the settings so that the correct shipping cost will be displayed in every order. Thank you very much for understanding » Gearmotors » Accessories » Coupling Hub for 6 mm Shafts This coupling hub allows secure coupling of a variety of mechanisms to 6 mm motor shafts. SKU: JSL13282219971 Price: 5.01 $ Product in stock SSL Certificate Quantity Updating cart... Overview This coupling hub allows secure coupling of a variety of mechanisms to 6 mm motor shafts. Specifications Length: 23 mm Inner Diameter: 6 mm Outer Diameter: 17.5 mm Related Products JGA25-370RC DC Gearmotor with Extended Axis (5.7 RPM at 12 V) 2pcs Hexagonal Motor Coupling Hub (4 mm) JGA25-310 DC Gearmotor (9 RPM at 6 V) JGB37-545 DC Gearmotor (7 RPM at 24 V) 20pcs 74HC595 Shift Register (DIP-16)