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E12B12 Metric Triple Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: E12B12 | CONDITION: NEW | SKU: 257037
E12B12 Metric Triple Roller Chain Sprocket

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Actual product may vary
Typically In Stock: confirm availability
Returnable: see conditions
Shipping from?: see locations Typically ships in 1 day
Weight: 3.17 lbs UOM: EA

Additional Description

Technical Specifications

Pitch 19.050 mm
Number Of Teeth 12
Outside Dia 85.351 mm
Material Steel
Pitch Diameter 73.604 mm


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 53.010 mm
Number of Chain Rows 3 Length thru Bore 70.002 mm
Number of Teeth 12 Construction Detail Solid
Outside Diameter 85.351 mm Bore Type Stock Bore
Pitch Diameter 73.604 mm Min Bore Size 20.000 mm
Single Strand Tooth Thickness 10.871 mm Max Bore Size 37.000 mm
Storage Dimension Length 3.360 in. Weight 3.17 lbs.
Storage Dimension Width 3.360 in. Individually Packaged No
Storage Dimension Height 2.756 in.