1pc 9-30 Teeth 04C Industrial Sprocket Wheel Precision 45# Steel Blacken Chain Gear Bore 5 6 7 8 10 12 14 15 16mm Pitch 6.35mm

1pc 9-30 Teeth 04C Industrial Sprocket Wheel Precision 45# Steel Blacken Chain Gear Bore 5 6 7 8 10 12 14 15 16mm Pitch 6.35mm

Aliexpress UK