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D80BTB21H (3020) Double Roller Chain Sprocket Taper Bushed

BRAND: Martin Sprocket | MODEL: D80BTB21H | CONDITION: NEW | SKU: 256833
D80BTB21H (3020) Double Roller Chain Sprocket Taper Bushed

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Actual product may vary
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Weight: 8.92 lbs UOM: EA

Additional Description

Technical Specifications

Number Of Teeth 21
Outside Dia 7.235"
Material Steel
Pitch 1.000 in.


A taper bushed sprocket is a sprocket where a tapered bushing is bolted into the taper bore that is machined in the sprocket. When installed this bushing is compressed onto the shaft providing a tight grip. Taper bushed sprockets have a tapered bushing bolted into a taper bore with hex head set screws instead of bolts.
Material Steel Hub Configuration B
Chain Number 80 Hub Outside Diameter 5.563 in.
Chain Pitch 1.000 in. Hub Recessed For Chain Clearance No
Number of Chain Rows 2 Construction Detail Solid
Number of Teeth 21 Bore Type Bushed TB
Outside Diameter 7.235 in. Bushing Part Number 3020
Pitch Diameter 6.710 in. Bushing Min Bore Size 0.938 in.
Single Strand Tooth Thickness 0.557 in. Bushing Max Bore Size 3.000 in.
Hardened Teeth Yes
Storage Dimension Length 7.235 in. Weight 8.80 lbs.
Storage Dimension Width 7.235 in. Individually Packaged No
Storage Dimension Height 2.000 in.