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E12B15 Metric Triple Roller Chain Sprocket

$137.21 Each


  • Typically ships in: 1 day
  • Weight: 5.4 lb
  • Free shipping on orders over $20
  • Contiguous U.S. States

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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 Width across Teeth/ Rows 49.784 mm
Chain Number 12B-3 Hub Configuration B
Chain Pitch 19.050 mm Hub Outside Diameter 70.993 mm
Number of Chain Rows 3 Length thru Bore 70.002 mm
Number of Teeth 15 Construction Detail Solid
Outside Diameter 103.373 mm Bore Type Stock Bore
Pitch Diameter 91.625 mm Min Bore Size 20.000 mm
Single Strand Tooth Thickness 10.871 mm Max Bore Size 50.000 mm
Storage Dimension Length 4.070 in. Weight 5.57 lbs.
Storage Dimension Width 4.070 in. Individually Packaged No
Storage Dimension Height 2.756 in.


Number Of Teeth 15
Outside Dia 103.373 mm
Material Steel
Pitch Diameter 91.625 mm
Pitch 19.050 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