This 03A78 sprocket is a durable, high quality, and precision A-plate sprocket with 78 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which ensures proper contact between the 03B-1 roller chain and sprocket thus preventing premature wear or breakage. 03A78 sprockets with a stock bore come with a 12 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.

03A78 Sprocket Dimensions

• Sprocket Size: 03A78
• Tooth Count: 78
• Thickness (T): 2.3mm
• Outside Diameter (OD): 126.3mm
• Pitch Diameter (PD): 124.17mm
• Stock Bore (ID): 12mm
• Weight: 0.33 kg