Martin D40SF102 Type C Double Strand Solid Bushed Roller Chain Sprocket, 0.5 to 2.938 in Dia Bore, 16.529 in OD, #40 Chain, 102 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 Roller Chain Sprocket, Type C Double Strand Solid Bushed, 0.5 to 2.938 in Bore, 16.529 in OD, #40 Chain, 102 Teeth, 1/2 in Pitch, 16.236 in Pitch Diameter, 4-3/4 in Diameter Hub, 1-1/4 in Length Through Bore, QD® SF Bushing, Steel
| Bore Diameter | : | 0.5 to 2.938 in |
| Bushing Type | : | QD® SF |
| Chain Size | : | #40 |
| Hub Diameter | : | 4-3/4 in |
| Length Through Bore | : | 1-1/4 in |
| Material | : | Steel |
| Number of Teeth | : | 102 |
| Outside Diameter | : | 16.529 in |
| Pitch Diameter | : | 16.236 in |
| Pitch | : | 1/2 in |
| Type | : | Type C Double Strand Solid Bushed |