Double Strand Roller Chain Sprocket With Type B Hub Reboreable For 140 Chain Size 1.75 Inch Pitch 21 Teeth 1.75 Inch Bore 12.661 Inch OD 7 Inch Hub 2.818 Inch Width Built Tough Heavy Duty Drive
✔️ 1.75 in pitch, 21 teeth, 12.661 in OD, 7 in hub, 2.818 in wide
This double strand roller chain sprocket with a Type B hub is designed for rugged drive systems using the 140-2 chain. It supports two chains side-by-side and offers reboreable bore options to fit a range of shafts, making it a robust choice for heavy-duty conveyors, milling, and processing equipment.
| Piazzola | 1.75 in (44.45 mm) |
| Denti | 21 |
| Outer Diameter | 12.661 in (321.48 mm) |
| Foro | 1.75 in (44.45 mm) |
| Hub Diameter | 7.0 in (177.8 mm) |
| Face Width | 2.818 in (71.56 mm) |
✅ For 140-2 chain, 1.75" pitch compatibility
✅ Dual chain capacity with Type B hub for stability
✅ Shaft bore options from 1-5/8" to 1-1/2" (41.3 mm to 38.1 mm)
✅ Outer diameter 12.661" (321.48 mm) with 21 teeth
✅ Hub diameter 7" (177.8 mm) and face width 2.818" (71.56 mm)
💡 What is a chain sprocket with a Type B hub typically used for in industrial drives?
In practical terms, this handy piece is built to drive two chains in a straight-line setup, boosting stability and load capacity.
- Handy for twin-chain drives in conveyors and heavy equipment - Works with 1.75" pitch 140-2 chain - Reboreable bore fits multiple shaft sizes - Hub extension supports secure keying and setscrews