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12BTB72 (2517) Taper Bushed Metric Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: 12BTB72 | CONDITION: NEW | SKU: 258989
12BTB72 (2517) Taper Bushed Metric Roller Chain Sprocket

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Weight: 24.38 lbs UOM: EA

Additional Description

Technical Specifications

Pitch 19.050 mm
Number Of Teeth 72
Outside Dia 448.480 mm
Material Steel
Pitch Diameter 436.730 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 Hub Configuration B
Chain Number 12B-1 Hub Outside Diameter 108.000 mm
Chain Pitch 19.050 mm Hub Recessed For Chain Clearance No
Number of Chain Rows 1 Construction Detail Welded
Number of Teeth 72 Bore Type Bushed TB
Outside Diameter 448.480 mm Bushing Part Number 2517
Pitch Diameter 436.730 mm Bushing Min Bore Size 12.700 mm
Single Strand Tooth Thickness 11.100 mm Bushing Max Bore Size 63.500 mm
Hardened Teeth No
Storage Dimension Length 17.669 in. Weight 28.77 lbs.
Storage Dimension Width 17.669 in. Individually Packaged No
Storage Dimension Height 1.750 in.