Overview
Mfr description
20A21 METRIC - STOCK BORE
- Metric A Plates are flat sprockets with no hub extension on either side.
- They can be altered for your application with bolt holes, custom bores, hardened teeth or special hubs welded to them.
- Tolerances meet or exceed ISO standards
- Manufactured of high carbon steel
- Precise machining and processes ensure consistent finish and high quality
- Bores are concentric to pitch line, minimizing run out
- Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Specifications
- Chain Number & Pitch20B / 1-1/4 in
- Chain Number Pitch20B-1 / 31.75 mm
- Product TypeStock Bore Sprockets
- Chain / Sprocket TypeMetric Roller Chain
- Hub StyleA
- Number Of Teeth21
- Bore TypeReboreable
- Bore Diameter32 mm
- Number Of Strands Across1
- MaterialSteel
- Number Of Hubs0
- Bore Range32 mm to 178.1 mm
- Length Through Bore19 mm
- Hardened TeethNon-Hardened Teeth
- CAD Drawing
- Hub TypeA
- Outside Diameter233.664 mm
- Root Diameter193.977 mm
- Caliper Diameter193.977 mm
- Pitch Diameter213.0 mm
- Maximum Bore Diameter182 mm
- Tooth Width19 mm
- Tooth Thickness19 mm
- Chain Roller Diameter19.05 mm
- Chain Roller Width19.56 mm
- Storage Dimension Height0.732 mm
- Storage Dimension Length9.199 mm
- Storage Dimension Width9.199 mm
- Surface TreatmentProtective Coating
- Manufacturer Upc Number697950403915
- UPC_NO697950403915
- Manufacturer Catalog
- Weight11.39 lbs
Compliance & Safety Data
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