The 3307 Series 8mm Pitch Steel Set-Screw Sprocket (8mm REX™ Bore, 10 Tooth) is engineered for compatibility with the 8mm REX™ shafting in the goBILDA® system. Its robust steel construction ensures superior strength and resistance to wear. The integrated set-screws secure the sprocket firmly to the shaft, while the built-in shim allows for close placement to a bearing without interference.