28B-3X39T Pilot Bore Sprocket
28B triplex pilot bore sprocket with 39 teeth.
Description
28B triplex pilot bore sprocket, 39 teeth. All catalogue specifications and dimensions are shown in Additional Information.
Additional information
| Chain Size | 28B |
|---|---|
| Chain Imperial Size | 1.3/4” x 1.1/4” |
| Strand | Triplex |
| Teeth | 39 |
| Outer Diameter (de) | 571 mm |
| Pitch Diameter (dp) | 552.4 mm |
| Hub Diameter (dm) | 200 mm |
| Hub Length Through Bore (A) | 180 mm |
| Stock Bore (D1) | 40 mm |
| Type | Type 1 (C45) |
| Tooth Radius r3 | 44 mm |
| Pitch | 44.45 mm |
| Chamfer c | 5 mm |
| Width Between Inner Plates | 30.99 mm |
| Roller Diameter | 27.94 mm |
| Tooth Width B1 | 29.4 mm |
| Tooth Width B2 | 88.4 mm |
| Tooth Width B3 | 148 mm |
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