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20A21 Sprocket

Note:

Custom bore sizes are available. Contact us if you need a specific bore size or machining requirement.
Images are for reference only. Actual product appearance may vary based on size, bore, keyway, hub style, or manufacturer.

SKU: 20A21-SPROCKET

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Buy it With:

Metric 20B Chain - 10ft Box $229.99
Premium 20B Roller Chain - 10ft Box $484.99

20A21 Sprocket Description/Features

20A21 Sprocket Specifications

This 20A21 sprocket is a durable, high quality, and precision A-Plate sprocket with 21 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 insures proper contact between the 20B-1 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 20A21 sprockets with a stock bore comes with a 25 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.

Dimensions:

Sprocket Size: 20A21
Tooth Count: 21
Outside Diameter: 228 mm
Stock Bore: 25 mm
Weight: 4.60 kg