This industrial spur gear pinion is designed for 04C chain drive systems and is supplied as a single piece. It features a bore of 8 mm, a tooth pitch of 6.35 mm (1/4 inch), and 12 teeth. The gear is manufactured from 45# steel for strength and durability in industrial applications. Key benefits Reliable power transfer with standard 04C chain compatibility for motor chain drive sprockets. Easy shaft mounting thanks to an 8 mm bore on a compact, 12tooth pinion. Durable, robust construction from 45# steel suitable for industrial service. Precise spur gear design with a tooth pitch of 6.35 mm (1/4 inch) for smooth operation. Sold as 1 piece, ready to install in compatible gear trains. Specifications and features Type: Pinion spur gear Chain gear type: 04C chain gear Teeth: 12 Tooth pitch: 6.35 mm (1/4 inch) Bore: 8 mm Material: 45# steel Quantity: 1 piece Applications: Industrial sprocket wheel and motor chain drive sprocket configurations requiring a 12tooth spur gear with 8 mm bore and 6.35 mm pitch Use cases Small conveyor or packaging line drives that use 04C chain and require a compact 12tooth pinion on an 8 mm shaft. Replacement gear in motordriven equipment where precise 12tooth spur gearing is needed to achieve a specific speed or torque ratio. Industrial automation setups that employ 04C chain drives to connect motors to driven shafts, enabling reliable torque transmission and smooth chain operation. Notes This item is listed as 10T19T in the product title range, but the included unit features 12 teeth with an 8 mm bore and 6.35 mm tooth pitch, made from 45# steel. This description reflects the product's brandneutral specifications, model features, and intended uses without adding extraneous details.