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E20B30 Metric Triple Roller Chain Sprocket

$1,298.51 Each


  • Typically ships in: 1 day
  • Weight: 85.0 lb
  • Free shipping on orders over $20

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Additional Description

Martin metric triple 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 Hub Configuration B
Chain Number 20B-3 Hub Outside Diameter 145.009 mm
Chain Pitch 31.750 mm Length thru Bore 120.015 mm
Number of Chain Rows 3 Hub Recessed For Chain Clearance No
Number of Teeth 30 Construction Detail Solid
Outside Diameter 324.383 mm Bore Type Stock Bore
Pitch Diameter 303.745 mm Min Bore Size 32.000 mm
Single Strand Tooth Thickness 18.186 mm Max Bore Size 102.000 mm
Hardened Teeth No
Storage Dimension Length 12.771 in. Weight 80.00 lbs.
Storage Dimension Width 12.771 in. Individually Packaged No
Storage Dimension Height 4.725 in.


Pitch 31.750 mm
Number Of Teeth 30
Outside Dia 324.383 mm
Material Steel
Pitch Diameter 303.745 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