Martin 40SDS45 QD Bushed Type B Single Pitch Roller Chain Sprocket, 7.45 in OD, #40 Chain, 45 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 Pitch Roller Chain Sprocket, QD Bushed Type B, 7.45 in Outside Dia, #40 Chain, 45 Teeth, 1/2 in Pitch, 7.168 in, 3-1/4 in Hub Dia, 1-3/8 in Length Through Bore, Type SDS QD® Bushing, Steel
| Bushing Type | : | Type SDS QD® |
| Chain Size | : | #40 |
| Hub Diameter | : | 3-1/4 in |
| Length Through Bore | : | 1-3/8 in |
| Material | : | Steel |
| Number of Teeth | : | 45 |
| Outside Diameter | : | 7.45 in |
| Pitch Diameter | : | 7.168 in |
| Pitch | : | 1/2 in |
| Type | : | QD Bushed Type B |