Overview
Mfr description
28A20 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 & Pitch28B / 1-3/4 in
- Chain Number Pitch28B-1 / 44.45 mm
- Product TypeStock Bore Sprockets
- Chain / Sprocket TypeMetric Roller Chain
- Hub StyleA
- Number Of Teeth20
- Bore TypeReboreable
- Bore Diameter40 mm
- Number Of Strands Across1
- MaterialSteel
- Number Of Hubs0
- Bore Range40 mm to 235.4 mm
- Length Through Bore29 mm
- Hardened TeethNon-Hardened Teeth
- Hub TypeA
- Outside Diameter311.767 mm
- Root Diameter256.205 mm
- Caliper Diameter256.205 mm
- Pitch Diameter284.1 mm
- Maximum Bore Diameter241 mm
- Tooth Width29 mm
- Tooth Thickness29 mm
- Chain Roller Diameter27.94 mm
- Chain Roller Width30.99 mm
- Storage Dimension Height1.159 mm
- Storage Dimension Length12.274 mm
- Storage Dimension Width12.274 mm
- Surface TreatmentProtective Coating
- Manufacturer Upc Number697950406718
- UPC_NO697950406718
- Manufacturer Catalog
- Weight23.01 lbs
Compliance & Safety Data
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