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28CTB72 (4040) Taper Bushed Metric Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: 28CTB72 | CONDITION: NEW | SKU: 260662
28CTB72 (4040) Taper Bushed Metric Roller Chain Sprocket

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Weight: 202.23 lbs UOM: EA

Additional Description

Technical Specifications

Pitch 44.450 mm
Number Of Teeth 72
Outside Dia 1046.660 mm
Material Steel
Pitch Diameter 1019.040 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 29.440 mm
Chain Number 28B-1 Hub Configuration C
Chain Pitch 44.450 mm Hub Outside Diameter 219.000 mm
Number of Chain Rows 1 Construction Detail Welded
Number of Teeth 72 Bore Type Bushed TB
Outside Diameter 1046.660 mm Bushing Part Number 4040
Pitch Diameter 1019.040 mm Bushing Min Bore Size 36.510 mm
Single Strand Tooth Thickness 29.440 mm Bushing Max Bore Size 101.600 mm
Storage Dimension Length 41.220 in. Weight 423.38 lbs.
Storage Dimension Width 41.220 in. Individually Packaged No
Storage Dimension Height 4.000 in.