80 Chain Sprocket With 21 Tooth And Finished Bore One And Three Eighths Inch Featuring Keyway And Set Screws For Secure Mounting And Quick Installation Optimized For Reliable Power Transmission In Machinery

Premium #80 sprocket, 21T, 1 3/8 bore; single unit
✔️ 21T, 1 3/8 finished bore with keyway and 2 set screws

This chain sprocket is designed for #80 roller chain used in conveyors, industrial machines, and agricultural equipment. It features a finished bore and is ready for secure mounting in power-transmission setups.

✅ Bore size: 1 3/8 finished bore with keyway
✅ チェーンsize: roller
✅ Number of teeth: 21
✅ ボア形式：BS
✅ Keyway: 5/16 x 5/32
✅ 取り付け：止めネジ2本付属

💡 What is a chain sprocket used for in power transmission systems? This handy drive component transfers motion between shafts via a roller chain. - Transfers torque from chain to driven parts for synchronized motion - Works with standard #80 roller chain for easy replacements - Uses a precision keyway and set screws for a secure mount - Available in common bore sizes like 1 3/8 inch for flexible setups