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08BTB84 (2012) Taper Bushed Metric Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: 08BTB84 | CONDITION: NEW | SKU: 258285
08BTB84 (2012) Taper Bushed Metric Roller Chain Sprocket

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Weight: 10.40 lbs UOM: EA

Additional Description

Technical Specifications

Pitch 12.700 mm
Number Of Teeth 84
Outside Dia 347.020 mm
Material Steel
Pitch Diameter 339.650 mm


A metric 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 Width across Teeth/ Rows 7.210 mm
Chain Number 08B-1 Hub Configuration B
Chain Pitch 12.700 mm Hub Outside Diameter 90.000 mm
Number of Chain Rows 1 Construction Detail Welded
Number of Teeth 84 Bore Type Bushed TB
Outside Diameter 347.020 mm Bushing Part Number 2012
Pitch Diameter 339.650 mm Bushing Min Bore Size 12.700 mm
Single Strand Tooth Thickness 7.210 mm Bushing Max Bore Size 50.800 mm
Storage Dimension Length 13.662 in. Weight 10.80 lbs.
Storage Dimension Width 13.662 in. Individually Packaged No
Storage Dimension Height 1.250 in.