Specification Brand : uxcell BulletPoint1 : Size: 20 teeth mechanical roller sprockets with 1/4" (6.35mm) pitch, 23/39" (15mm) inner hole diameter. For more sizes, please refer to the pictures. BulletPoint2 : Material: The sprocket is made of stainless steel, which exhibits excellent corrosion resistance, heat resistance, low-temperature strength, and mechanical properties. 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 : Silver Tone Department : Unisex ExternallyAssignedProductIdentifier1 : 0637885507722 ExternallyAssignedProductIdentifier2 : 637885507722 ItemName : uxcell 2pcs Sprocket Type B Hub 15mm Bore, 1/4-Inch Pitch, 20 Teeth Stainless Steel Single Strand Roller Sprocket for Chain DIN/ISO No. 04C-1 and ANSI No. #25 ItemPackageDimensions_Height : 9 centimeters ItemPackageDimensions_Length : 2.2 centimeters ItemPackageDimensions_Width : 6.2 centimeters ItemPackageQuantity : 2 ItemTypeKeyword : roller-chain-sprockets Manufacturer : uxcell Material : Stainless Steel NumberOfItems : 1 NumberOfRows : 1 NumberOfTeeth : 20 PartNumber : a23110800ux0633 ProductDescription : Size: 20 teeth mechanical roller sprockets with 1/4" (6.35mm) pitch, 23/39" (15mm) inner hole diameter. For more sizes, please refer to the pictures. Material: The sprocket is made of stainless steel, which exhibits excellent corrosion resistance, heat resistance, low-temperature strength, and mechanical properties 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.