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D20C42 C-Hub Double Roller Chain Sprocket MET

$1,145.89 Each


  • Typically ships in: 1 day
  • Weight: 96.0 lb
  • Free shipping on orders over $20
  • Contiguous U.S. States

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Additional Description

Martin metric double strand solid construction sprockets have proper spacing between chain rows. The sprockets are manufactured from high carbon steel. Martin does not stack “A” plates on multiples, but instead Martin machines teeth after the chain rows are already in place. 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 54.635 mm
Chain Number 20B-2 Hub Configuration C
Chain Pitch 31.750 mm Hub Outside Diameter 151.994 mm
Number of Chain Rows 2 Length thru Bore 113.995 mm
Number of Teeth 42 Construction Detail Welded
Outside Diameter 445.500 mm Bore Type Stock Bore
Pitch Diameter 424.862 mm Min Bore Size 40.000 mm
Single Strand Tooth Thickness 18.186 mm Max Bore Size 105.000 mm
Storage Dimension Length 17.539 in. Weight 90.34 lbs.
Storage Dimension Width 17.539 in. Individually Packaged No
Storage Dimension Height 4.488 in.


Number Of Teeth 42
Outside Dia 445.500 mm
Material Steel
Pitch Diameter 424.862 mm
Pitch 31.750 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