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8020 3 7/16 PITCH: #80 Bore: 3 7/16 INCH

BRAND: Martin Sprocket | MODEL: 8020 3 7/16 | CONDITION: NEW | SKU: 265791
8020 3 7/16 PITCH: #80 Bore: 3 7/16 INCH

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Actual product may vary
Typically In Stock: confirm availability
Returnable: see conditions
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Weight: 10.60 lbs UOM: EA

Additional Description

Technical Specifications

Number Of Teeth 20
Outside Dia 6.590"
Material Steel
Pitch 1.000 in.


Roller chain couplings have a torque capacity in excess of the torque normally transmitted by shafting which falls within the coupling bore range. Select the smallest coupling, which will accomodate both shafts. For a reversing operation, shock or pulsating loads, or other severe operating conditions, select the next larger coupling size. A cover should be used to assure maximum service life, particularly if the coupling operates at high speeds or under moist conditions. For proper lubrication, fill the space between the cover and the coupling with soft to medium consistency coupling grease. Many finished bore sizes available as well as stock bore blanks that can be altered. Chains, Covers stocked in all branch locations. All stock roller chain couplings have hardened teeth.
Material Steel Bore Type Bored To Size
Coupling Size 80 Finished Bore Size 3.438 in.
Chain Pitch 1.000 in. Key Way Size 7/8 X 7/16 in.
Number of Teeth 20 Set Screw Size 5/8-11X5/8 in.
Outside Diameter 6.590 in. Set Screw Location 1 Over Keyway
Hub Outside Diameter 5.375 in. Number of Set Screws 1
Length Thru Bore 2.625 in. Min Bore Size 3.438 in.
Hardened Teeth Yes Max Bore Size 3.563 in.
Storage Dimension Length 6.590 in. Weight 10.60 lbs.
Storage Dimension Width 6.590 in. Individually Packaged No
Storage Dimension Height 2.625 in.