2pcs Coupling Hub for 4 mm Shafts Please allow 4-6 days processing before ship out. For gearmotors, we don’t ship using epacket and will use regular shipping if needed. Please note that regular shipping like singapore post might take 45-60 days to deliver, epacket 20 -35 days to deliver Thank you for understanding. » Gearmotors » Accessories » 2pcs Coupling Hub for 4 mm Shafts This coupling hub allows secure coupling of a variety of mechanisms to 4 mm motor shafts. SKU: JSL13282219971 Price: 9.57 $ Product in stock SSL Certificate Quantity Updating cart... Overview This coupling hub allows secure coupling of a variety of mechanisms to 4 mm motor shafts. Specifications Length: 15.5 mm Inner Diameter: 4 mm Outer Diameter: 22.5 mm Related Products JGB37-545 DC Gearmotor (960 RPM at 24 V) 20pcs 2 x 90 mm Shaft JGA20-130 DC Micro Gearmotor (60 RPM at 12 V) JGA25-370RC DC Gearmotor with Extended Axis (61 RPM at 12 V) JGB37-520 DC Gearmotor (66 RPM at 24 V)