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28BTB21H (3020) Taper Bushed Metric Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: 28BTB21H | CONDITION: NEW | SKU: 260622
28BTB21H (3020) Taper Bushed Metric Roller Chain Sprocket

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Weight: 29.48 lbs UOM: EA

Additional Description


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 29.440 mm
Chain Number 28B-1 Hub Configuration B
Chain Pitch 44.450 mm Hub Outside Diameter 133.000 mm
Number of Chain Rows 1 Construction Detail Welded
Number of Teeth 21 Bore Type Bushed TB
Outside Diameter 325.860 mm Bushing Part Number 3020
Pitch Diameter 298.240 mm Bushing Min Bore Size 23.810 mm
Single Strand Tooth Thickness 29.440 mm Bushing Max Bore Size 76.200 mm
Storage Dimension Length 12.809 in. Weight 29.48 lbs.
Storage Dimension Width 12.809 in. Individually Packaged No
Storage Dimension Height 2.000 in.