40 Chain Sprocket With Twenty One Teeth And Finished Bore Of One And Seven Sixteenths Inch, Includes Keyway And Two Set Screws For Secure Mounting, Ideal For Reliable Power Transmission, Model 40BS21

40 Chain Sprocket: 21 Teeth, 1 7/16 in (36.5 mm) Bore
✔️ Single sprocket: 1 7/16 in finished BS bore with keyway

This is a heavy-duty chain sprocket designed for #40 roller chain drives. Use cases include conveyors, manufacturing lines, and agricultural equipment where reliable alignment and secure mounting matter.

✅ 21-tooth configuration for standard #40 roller chain drive
✅ 1 7/16 in (36.5 mm) finished bore with keyway
✅ BS bore style with 2 set screws for secure mounting
✅ Includes keyway and set screws for easy installation

💡 What is a #40 chain sprocket used for in power transmission systems? This handy device transfers motion in chain drives. - transfers rotational motion between drive and driven chains - ensures proper alignment with keyway and set screws - ideal for conveyors, agricultural machinery, and general industrial systems