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Metric Roller Chain Sprocket

D20B12

Metric Roller Chain Sprocket
Item #100967351
  • 20B-2 Chain Number
  • 2 Strands
  • 12 Teeth
  • Without Hardened Teeth
  • B Sprocket Style
  • 20 mm Minimum Bore
  • 63 mm Maximum Bore
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Metric Roller Chain Sprocket
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    Shipment Options
  • 20B-2 Chain Number
  • 2 Strands
  • 12 Teeth
  • Without Hardened Teeth
  • B Sprocket Style

description

  • Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

features

  • 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
Hub Dia. 89.99 mm
Hub Length Thru 80 mm
Length Through Bore 80.01 mm
Family Name No. 20 - 31.750 mm Pitch - Double - Type B & C
Pitch Diameter [Min] 122.7 mm
Outside Dia. [Min] 143.31 mm
Width Across Teeth 54.64 mm
Sprocket Style B
Pitch Root Diameter 103.6 mm
No. of Teeth 12
Bore Style Minimum Bore
Single Strand Tooth Thickness 18.19 mm
Martin No. 20B12
Series B
Chain No. 20B, 20B-2
Chain Pitch 31.75 mm
Material Steel
Pin Diameter 19.05 mm
Bore Type Reborable
Outside Dia. 143.31 mm
Inch/Metric Metric
Bore Range [Max] 63 mm
Pitch Diameter 122.7 mm
Bore Range [Min] 20 mm
Root Diameter 103.6 mm
Caliper Diameter 103.62 mm
No. of Strands Across 2
Hardened Teeth Without Hardened Teeth
Weight 9.5 LB
EAN or UPC 697950404905
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