Twenty One Tooth Chain Sprocket With One And Three Sixteenths Inch Finished Bore Includes Precision Keyway And Two Set Screws For Secure Mounting Built For Reliable Power Transfer On Standard Drive Chains In Heavy Duty Applications

80-Size Chain Sprocket with 21 Teeth and 1 3/16 Bore
✔️ 21-tooth sprocket, 1 3/16 bore, single unit w/ keyway

This #80 chain sprocket is designed for dependable power transmission in conveyors, industrial machinery, and agricultural equipment. It ships as a single unit with a precision keyway and two set screws for secure mounting.

✅ Bore: 1 3/16 in (30.16 mm) finished bore with precision fit
✅ Chain size: #80 roller chain
✅ Teeth: 21 teeth
✅ Bore style: BS (finished bore)
✅ Keyway: 1/4 x 1/8 in (6.35 x 3.18 mm)
✅ Mounting: Includes 2 set screws for secure mounting

💡 What is a chain sprocket used for in power transmission systems and how do I pick the right size?

A quick guide to sizing considers chain size, bore, and tooth count. - chain size and pitch match the chain you’re using - bore and keyway ensure a secure shaft fit - number of teeth affects speed and torque capacity - mounting and material finish impact durability