Industrial gear pinion spur gear designed for chain drive systems that use 6.35 mm pitch chains. This item is a single steel sprocket wheel with 25 teeth, a 12 mm bore, and M5 screw holes for secure mounting on compatible shafts. Built as a 04C chain gear, it is intended for reliable, durable performance in industrial and machine applications. Key benefits Durable steel construction for long service life in demanding environments 25tooth design provides a balanced balance of speed and torque for standard 6.35 mm chain drives Standard 6.35 mm (0.25 in) chain pitch ensures compatibility with common chain systems M5 screw holes enable secure, repeatable mounting to motors or axles 12 mm bore allows precise shaft fit and straightforward alignment with compatible shafts Singlepiece sprocket reduces assembly complexity and helps maintain accurate timing Key attributes Material: Steel Type: Pinion spur gear / chain sprocket Teeth: 25 Chain pitch: 6.35 mm Bore: 12 mm Mounting: M5 screw holes Quantity: 1 piece Chain gear designation: 04C Application: motor chain drive sprocket Applications and use cases Robotics and automation projects that utilize 6.35 mm pitch chains and require a 12 mm shaft bore for reliable power transmission Smallscale conveyors or materialhandling systems where a robust steel sprocket with secure M5 mounting is needed CNC or hobbyist machinery builds that need a precise 25tooth sprocket for timing and synchronization with a standard chain drive This sprocket aligns with standard industrial drive practices, offering dependable performance in compatible 6.35 mm chain systems with a 12 mm shaft bore and M5 mounting. It is suited for a range of motor chain drive applications where a durable, singlepiece steel sprocket with 25 teeth and a 12 mm bore is required.