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20B9 Metric Roller Chain Sprocket

$81.73 Each


  • Typically ships in: 1 day
  • Weight: 2.8 lb
  • Free shipping on orders over $20

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Additional Description

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.
Material Steel Width across Teeth/ Rows 18.593 mm
Chain Number 20B-1 Hub Configuration B
Chain Pitch 31.750 mm Hub Outside Diameter 57.988 mm
Number of Chain Rows 1 Length thru Bore 48.006 mm
Number of Teeth 9 Construction Detail Solid
Outside Diameter 113.468 mm Bore Type Stock Bore
Pitch Diameter 92.831 mm Min Bore Size 25.000 mm
Single Strand Tooth Thickness 18.593 mm Max Bore Size 41.000 mm
Storage Dimension Length 4.467 in. Weight 2.81 lbs.
Storage Dimension Width 4.467 in. Individually Packaged No
Storage Dimension Height 1.890 in.


Pitch 31.750 mm
Number Of Teeth 9
Outside Dia 113.468 mm
Material Steel
Pitch Diameter 92.831 mm

Return policy

Item must be unused.

Item must be in it's original package.

Restocking, shipping and handling fees may apply to any return with this manufacturer.

For more information please consult


Product's availability

State of California Proposition 65 Product Warning