Martin 28BTB15H Type B Single Strand Stock Bore Welded Roller Chain Sprocket With Hardened Teeth, 76.2 mm Dia Bore, 241.42 mm OD, #28B-1 Chain, 15 Teeth, 44.45 mm Pitch, Steel
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.
Martin Roller Chain Sprocket, Type B Single Strand Stock Bore Welded, 76.2 mm Bore, 241.42 mm OD, #28B-1 Chain, 15 Teeth, 44.45 mm Pitch, 213.79 mm Pitch Diameter, 133 mm Diameter Hub, 50.8 mm Length Through Bore, 3020 Taper Bushing, Steel
| Bushing Type | : | 3020 Taper |
| Bore Diameter | : | 76.2 mm |
| Outside Diameter | : | 241.42 mm |
| Chain Size | : | #28B-1 |
| Number of Teeth | : | 15 |
| Pitch | : | 44.45 mm |
| Material | : | Steel |
| Type | : | Type B Single Strand Stock Bore Welded |
| Pitch Diameter | : | 213.79 mm |
| Hub Diameter | : | 133 mm |
| Length Through Bore | : | 50.8 mm |
VIDEO LINK
https://www.youtube.com/watch?v=fSomOMNB_-Q