Specification Brand : uxcell BulletPoint : Manufacturer part number P021002286 BulletPoint1 : Size: B type mechanical chain sprockets 21 teeth, 25mm bore, 3/8" (9.252mm) pitch, 8mm keyway, with 2pcs set screws at 90 degrees. BulletPoint2 : Material: The sprocket is made of A3-steel, and the teeth are high-frequency quenched, which exhibits high hardness and wear resistance. BulletPoint3 : Application: The sprocket is applied in various industrial circumstances, such as milling machines, drill presses, and other machinery transmission operations BulletPoint4 : Feature: The B-type sprocket is equipped with a set of teeth on its circumference, connected to other gears through a fasten. On the opposite side, there is a hub that can accommodate different types of bushings. It ensures high transmission efficiency when transferring energy BulletPoint5 : Installation: Chain sprockets are typically mounted in a fixed position on a stationary shaft. They are secured using a keyway and 2pcs set screws positioned at 90-degree intervals, ensuring a secure and convenient installation of the sprocket onto the shaft. Color : Black ExternallyAssignedProductIdentifier1 : 0731515759397 ExternallyAssignedProductIdentifier2 : 731515759397 ExternallyAssignedProductIdentifier3 : 00662289332236 IncludedComponents : Replacement Part ItemDisplayDimensions_Length : 2 inches ItemName : uxcell ISO/DIN 06B-1 Roller Chain Sprocket B Type 25mm Bore, 3/8" Pitch, A3-Steel Single Strand Roller Sprocket Hardened 21 Tooth ItemPackageDimensions_Height : 10.4 centimeters ItemPackageDimensions_Length : 3.6 centimeters ItemPackageDimensions_Width : 9.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : roller-chain-sprockets Manufacturer : uxcell Material : Alloy Steel ModelNumber : 7001331 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfRows : 1 NumberOfTeeth : 21 PackageLevel : unit PartNumber : a23122900ux0473 ProductDescription : Material: The sprocket is made of A3-steel, and the teeth are high-frequency quenched, which exhibits high hardness and wear resistance. Application: The sprocket is applied in various industrial circumstances, such as milling machines, drill presses, and other machinery transmission operations Feature: The B-type sprocket is equipped with a set of teeth on its circumference, connected to other gears through a fasten. On the opposite side, there is a hub that can accommodate different types of bushings. It ensures high transmission efficiency when transferring energy Installation: Chain sprockets are typically mounted in a fixed position on a stationary shaft. They are secured using a keyway and 2pcs set screws positioned at 90-degree intervals, ensuring a secure and convenient installation of the sprocket onto the shaft. Note: The speed of the sprocket should not over that allowed by a drive sprocket of the same size. Each roller sprocket has strong teeth that latch onto the chain. It is suggested that the sprocket has at least three teeth meshed with the chain.