12B-2X8T Pilot Bore Sprocket
12B duplex pilot bore sprocket with 8 teeth.
Description
12B duplex pilot bore sprocket, 8 teeth. All catalogue specifications and dimensions are shown in Additional Information.
Additional information
| Chain Size | 12B |
|---|---|
| Chain Imperial Size | 3/4” x 7/16” |
| Strand | Duplex |
| Teeth | 8 |
| Outer Diameter (de) | 57.6 mm |
| Pitch Diameter (dp) | 49.78 mm |
| Hub Diameter (dm) | 31 mm |
| Hub Length Through Bore (A) | 45 mm |
| Stock Bore (D1) | 12 mm |
| Type | Type 1 (C45) |
| Tooth Radius r3 | 19 mm |
| Pitch | 19.05 mm |
| Chamfer c | 2 mm |
| Width Between Inner Plates | 11.68 mm |
| Roller Diameter | 12.07 mm |
| Tooth Width B1 | 11.1 mm |
| Tooth Width B2 | 30.3 mm |
| Tooth Width B3 | 49.8 mm |
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