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D140B21 Double Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: D140B21 | CONDITION: NEW | SKU: 256240
D140B21 Double Roller Chain Sprocket

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Weight: 82.00 lbs UOM: EA

Additional Description


Martin 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 Hub Configuration B
Chain Number 140 Hub Outside Diameter 7.000 in.
Chain Pitch 1.750 in. Length thru Bore 4.000 in.
Number of Chain Rows 2 Hub Recessed For Chain Clearance No
Number of Teeth 21 Construction Detail Welded
Outside Diameter 12.660 in. Bore Type Stock Bore
Pitch Diameter 11.742 in. Min Bore Size 1.750 in.
Single Strand Tooth Thickness 2.818 in. Max Bore Size 5.250 in.
Hardened Teeth No
Storage Dimension Length 12.660 in. Weight 83.00 lbs.
Storage Dimension Width 12.660 in. Individually Packaged No
Storage Dimension Height 4.000 in.