Martin 60BR17 1 1/8 Type B Bronze Bearing Idler Sprocket, 1/8 in Dia Bore, 4.46 in OD, #60 Chain, 17 Teeth, 3/4 in Pitch, Steel
Martin idlers are smooth-running and available in oil-impregnated, sintered bronze, extra-duty bearing press-fitted in sprocket and a hardened steel journal case for maximum resistance to wear. Steel sprockets used in Martin idlers are accurately machined (not stamped) the same as sprockets normally supplied for power transmission use. Martin can also alter existing sprockets and install bearings to make custom idlers.
Martin Bronze Bearing Idler Sprocket, Type B, 1/8 in Bore, 4.46 in OD, #60 Chain, 17 Teeth, 3/4 in Pitch, 4.082 in Pitch Diameter, 3-1/4 in Diameter Hub, 1-1/4 in Length Through Bore, Steel
| Pitch | : | 3/4 in |
| Bore Diameter | : | 1/8 in |
| Outside Diameter | : | 4.46 in |
| Chain Size | : | #60 |
| Number of Teeth | : | 17 |
| Material | : | Steel |
| Pitch Diameter | : | 4.082 in |
| Length Through Bore | : | 1-1/4 in |
| Hub Diameter | : | 3-1/4 in |
| Type | : | Type B |
VIDEO LINK
https://www.youtube.com/watch?v=fSomOMNB_-Q