Overview
Mfr description
20B21 SPK ROLLER B MET
- 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 Diameter114 mm
- Hub StyleB
- Number Of Teeth21
- Bore TypeFinished Bore
- Number Of Strands Across1
- MaterialSteel
- Length Through Bore2.0080 in
- Hardened TeethNon-Hardened Teeth
- CAD Drawing
- Hub TypeB
- Outside Diameter233.664 mm
- Root Diameter193.977 mm
- Caliper Diameter193.977 mm
- Pitch Diameter8.3869 in
- Maximum Bore Diameter80 mm
- Chain Number20B
- Tooth Width19 mm
- Tooth Thickness19 mm
- Chain Roller Diameter19.05 mm
- Chain Roller Width19.56 mm
- Storage Dimension Height2.008 mm
- Storage Dimension Length9.199 mm
- Storage Dimension Width9.199 mm
- Surface TreatmentProtective Coating
- Manufacturer Upc Number697950403908
- UPC_NO697950403908
- Weight15.49 lbs
- Width Across Teeth Rows0.6560 in
Compliance & Safety Data
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