Martin 80BTB21 Taper Bushed Type B Single Pitch Roller Chain Sprocket, 7.235 in OD, #80 Chain, 21 Teeth, 1 in Pitch, Steel
A 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 Single Pitch Roller Chain Sprocket, Taper Bushed Type B, 7.235 in Outside Dia, #80 Chain, 21 Teeth, 1 in Pitch, 6.71 in, 4-1/4 in Hub Dia, 1-3/4 in Length Through Bore, 2517 Taper Lock Bushing, Steel
| Bushing Type | : | 2517 Taper Lock |
| Outside Diameter | : | 7.235 in |
| Chain Size | : | #80 |
| Number of Teeth | : | 21 |
| Pitch | : | 1 in |
| Material | : | Steel |
| Type | : | Taper Bushed Type B |
| Pitch Diameter | : | 6.71 in |
| Hub Diameter | : | 4-1/4 in |
| Length Through Bore | : | 1-3/4 in |