Martin D40SF84 Double Strand QD Bushed Solid Type C Single Roller Chain Sprocket, 13.663 in OD, 40-2 Chain, 84 Teeth, 1/2 in Pitch, Steel
QD (quick detachable)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.
Martin Single Roller Chain Sprocket, Double Strand QD Bushed Solid Type C, 13.663 in Outside Dia, 40-2 Chain, 84 Teeth, 1/2 in Pitch, 13.372 in, 4-3/4 in Hub Dia, 1-1/4 in Length Through Bore, Type SF QD® Bushing, Steel
| Bushing Type | : | Type SF QD® |
| Outside Diameter | : | 13.663 in |
| Chain Size | : | 40-2 |
| Number of Teeth | : | 84 |
| Pitch | : | 1/2 in |
| Material | : | Steel |
| Length Through Bore | : | 1-1/4 in |
| Pitch Diameter | : | 13.372 in |
| Type | : | Double Strand QD Bushed Solid Type C |
| Hub Diameter | : | 4-3/4 in |