2 Pack 25 Roller Chain Sprocket For ISO 04C Chain, 20 Tooth, 6.35mm Bore, C45 Carbon Steel With Black Oxide Finish, High Hardness Teeth, Set Screws, ANSI 25, Smooth Round Hole, Durable Industrial Gear For Machinery And Conveyors

2-Pack 25-Tooth Sprocket for ISO 04C Chain, 6.35mm Bore
✔️ 20 teeth, ANSI 25, 6.35mm pitch, black oxide finish

Two sprockets are designed for ISO 04C roller chain with a 6.35mm bore. They’re ideal for power transmission in industrial equipment such as milling machines, drilling rigs, and conveyors, delivering durable drive gears and long service life.

✅ 2-pack set of 25-tooth sprockets for ISO 04C chain
✅ Material: C45 carbon steel with black oxide coating for rust resistance
✅ Teeth are hardened via high-temperature quenching for long wear life
✅ Includes set screws and precise 90-degree alignment to prevent shaft slip
✅ Installation: maintain at least three teeth in mesh for reliable operation

💡 What is a roller chain sprocket used for in power transmission systems?

Answer: A roller chain sprocket couples a drive shaft to a chain, translating rotational motion into linear movement along the chain and vice versa. Handy in many machines for controlled torque transfer.

- transfers torque between a shaft and ISO 04C roller chain - commonly used in conveyors, mills, drills, and other drive systems - hardened teeth and black oxide finish boost durability and life span