Martin S1 4 Standard MST Bushing, 4 in Dia Bore, 4.418 in Small End/4.625 in Large End Dia Barrel, 6-3/8 in Dia Flange, 4.38 in OAL, Ductile Iron
MST® bushings are easy to install and remove. They are split through the barrel and have a taper to provide a true clamp on the shaft. They are keyed to both the shaft and the hub to help during "blind" installations.
Martin MST Bushing, Standard, 4 in Bore Dia, 4.418 in Small End/4.625 in Large End Barrel Dia, 6-3/4 in Hub Dia, 5-3/8 in Bolt Circle, 6-3/8 in Flange Dia, 3/4 in Flange Thickness, 3 Bolt Holes, 1/2-13 x 2-1/4 in (Cap Screw)/3/8-16 x 3/8 in (Set Screw) Screw, For Use With: MST® Sprockets and HS1 Weld-On Hub, 4.38 in Overall Length, 1 x 1/2 in Keyway, Ductile Iron
| Keyway Size | : | 1 x 1/2 in |
| Flange Thickness | : | 3/4 in |
| Bore Diameter | : | 4 in |
| Overall Length | : | 4.38 in |
| Material | : | Ductile Iron |
| Number of Bolt Holes | : | 3 |
| Screw Size | : | 1/2-13 x 2-1/4 in (Cap Screw)/3/8-16 x 3/8 in (Set Screw) |
| Suitable For Use With | : | MST® Sprockets and HS1 Weld-On Hub |
| Type | : | Standard |
| Hub Diameter | : | 6-3/4 in |
| Bolt Circle Diameter | : | 5-3/8 in |
| Barrel Diameter | : | 4.418 in Small End/4.625 in Large End |
| Flange Diameter | : | 6-3/8 in |