BlackStar DS60A21H 1 15/16 K2S - Double-Single 60 Pitch A-Plate Sprocket - 21 Tooth - 1-15/16" Bore TL2517 The 9/B81 is used for

The 9/B81 is used for high-shock and high-vibration drives

168 lb UPC 190859063353 Applications

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and Jason Industrial 10/B315

BlackStar DS60A21H 1 15/16 K2S - Double-Single 60 Pitch A-Plate Sprocket - 21 Tooth - 1-15/16" Bore TL2517 The 9/B81 is used forThe BlackStar DS60A21H 1 15 16 K2S is a 60 pitch double single strand A Plate roller chain sprocket with 21 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1 15 16" bore and is ready for immediate installation. Specifications Part Number DS60A21H 1 15 16 K2S Chain Pitch 60 Number of Teeth 21 Bore Size 1 15 16" Bore Type Plain Bore Hub Style A Plate