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E20C42 C-Hub Metric Triple Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: E20C42 | CONDITION: NEW | SKU: 257120
E20C42 C-Hub Metric Triple Roller Chain Sprocket

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Actual product may vary
Typically In Stock: confirm availability
Returnable: see conditions
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Weight: 154.58 lbs UOM: EA

Additional Description

Technical Specifications

Pitch 31.750 mm
Number Of Teeth 42
Outside Dia 445.500 mm
Material Steel
Pitch Diameter 424.862 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 91.084 mm
Chain Number 20B-3 Hub Configuration C
Chain Pitch 31.750 mm Hub Outside Diameter 151.994 mm
Number of Chain Rows 3 Length thru Bore 127.000 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 107.000 mm
Storage Dimension Length 17.539 in. Weight 213.24 lbs.
Storage Dimension Width 17.539 in. Individually Packaged No
Storage Dimension Height 5.000 in.