Overview
Mfr description
20B12 METRIC - STOCK BORE
- Metric B Style sprockets are flat sprockets with a hub extension on one side.
- These plain bore sprockets can easily be bored to a metric or standard size to fit your application.
- Keyways, set screws and harden teeth are quick alterations that can be made.
- 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 Outside Diameter90 mm
- Hub StyleB
- Number Of Teeth12
- Bore TypeReboreable
- Bore Diameter25 mm
- Number Of Strands Across1
- MaterialSteel
- Number Of Hubs1
- Length Through Bore48 mm
- Hardened TeethNon-Hardened Teeth
- Pitch TypeSingle
- Hub Diameter90 mm
- CAD Drawing
- Hub TypeB
- Outside Diameter143.31 mm
- Root Diameter103.623 mm
- Caliper Diameter103.623 mm
- Pitch Diameter122.7 mm
- Maximum Bore Diameter63 mm
- Tooth Width19 mm
- Tooth Thickness19 mm
- Chain Roller Diameter19.05 mm
- Chain Roller Width19.56 mm
- Storage Dimension Height1.89 mm
- Storage Dimension Length5.642 mm
- Storage Dimension Width5.642 mm
- Surface TreatmentProtective Coating
- Manufacturer Upc Number697950403724
- UPC_NO697950403724
- Manufacturer Catalog
- Weight1.90 lbs
Compliance & Safety Data
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