Martin D40P20H Type 12 Double Strand Solid Bushed Roller Chain Sprocket With Recess Groove and Hardened Teeth, 1/2 to 1-3/4 in Dia Bore, 3.457 in OD, #40 Chain, 20 Teeth, 1/2 in Pitch, Steel
Martin split taper sprocket is another style of bushed sprocket. The split taper bushing, when installed, offers a wide range of bore sizes.
Martin Roller Chain Sprocket, Type 12 Double Strand Solid Bushed, 1/2 to 1-3/4 in Bore, 3.457 in OD, #40 Chain, 20 Teeth, 1/2 in Pitch, 3.1962 in Pitch Diameter, 3 in Diameter Hub, 3/8 in Keyway, 1-1/2 in Length Through Bore, MST® P1 Bushing, Steel
| Bore Diameter | : | 1/2 to 1-3/4 in |
| Bushing Type | : | MST® P1 |
| Chain Size | : | #40 |
| Hub Diameter | : | 3 in |
| Keyway Size | : | 3/8 in |
| Length Through Bore | : | 1-1/2 in |
| Material | : | Steel |
| Number of Teeth | : | 20 |
| Outside Diameter | : | 3.457 in |
| Pitch Diameter | : | 3.1962 in |
| Pitch | : | 1/2 in |
| Type | : | Type 12 Double Strand Solid Bushed |