BlackStar 80BS21 1 7/16 K2S - 80 Pitch Finished Bore Sprocket - 21 Tooth - 1-7/16" Bore PowerGrip GT2 Twin Power Belts so a 16/BK136 from any

so a 16/BK136 from any major manufacturer shares the same cross-section and length and runs on the same sheaves

It is a direct replacement for Jason Industrial 17/5V3350

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Pitch Profile 14M Pitch 14 mm Tooth Profile Modified Curved (GT) Tooth Location Outside Number of Teeth 112 Width 68mm Length 1568 mm Material Polyurethane Reinforcement Carbon Color Black Temperature Range -20°F to 158°F

BlackStar 80BS21 1 7/16 K2S - 80 Pitch Finished Bore Sprocket - 21 Tooth - 1-7/16" Bore PowerGrip GT2 Twin Power Belts so a 16/BK136 from anyThe BlackStar 80BS21 1 7 16 K2S is a 80 pitch Finished Bore 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 7 16" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 80BS21 1 7 16 K2S Chain Pitch 80 Number of Teeth 21 Bore Size 1 7 16" Minimum Bore 1" Maximum Bore 2 7 16"