Check the listing for details. 6pcs #40 Chain Link Roller 1/2 Inch Split Links for 08A Chain. Condition: New. Listed at 13.67 USD. APPLICATION：The link roller is designed for use with drive chains. It is commonly used in various applications requiring chain connections, such as machinery, equipment, and other transmission systems.FEATURES：Finely processed with precision, providing reliable performance. Regular cleaning and lubrication are recommended to extend its service life.SPECIFICATION：Total Length: 23mm / 0.91-inchPin Length: 18.5mm / 0.73-inchPin Diameter: 4mm / 0.16-inchInner Plate Depth: 12mm / 0.47-inchPitch: 1/2-inch / 12.7mmWidth Between Inner Plates: 8.5mm / 0.33-inchAverage Tensile Strenght:10.8kNPackage: 6pcs x Link RollerTIPS:To replace a chain link roller, the old one can be disassembled from the chain using appropriately sized circlip pliers. The new chain joint can be installed by first inserting the pin and then snapping the spring clip into place.