40 Chain Sprocket With 21 Tooth One And One Eighth Inch Finished Bore Featuring Keyway And Set Screws For Secure Mounting And Reliable Power Transmission In Industrial Machinery For Wide Range Of Applications

Accurate #40 chain sprocket with 21 teeth and 1 1/8 bore
✔️ 21-tooth, 1-1/8 in finished bore with keyway & set screws

This rugged chain sprocket is designed for reliable power transmission in conveyors, industrial machinery, agricultural equipment, and other drive systems. It features a 21-tooth configuration, a 1 1/8 finished bore with a precision keyway, and two set screws for secure mounting.

✅ Chain size: #40 roller chain compatible
✅ Teeth: 21 for smooth power transfer
✅ Bore: 1 1/8 inch finished bore with precision keyway
✅ Mounting: includes two set screws for secure fit

💡 What is a chain sprocket used for in power transmission systems? This handy component drives chain in conveyors, machinery, and ag equipment. - Used for efficient torque transfer in drive trains - Fits #40 roller chain with 1 1/8 bore and keyway - Keeps alignment under load with set screws